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Merge pull request #3720 from hashicorp/fork-friendly 

Restructures Consul to make it easier to maintain the Consul Enterprise fork.
This commit is contained in:
James Phillips 2017-11-30 13:56:41 -08:00 committed by GitHub
parent fe36ed6412 3e46544085
commit ac09b30d33
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
39 changed files with 2454 additions and 2060 deletions
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35
agent/acl_endpoint.go
View File

@ -14,16 +14,24 @@ type aclCreateResponse struct {
ID string
}
// ACLDisabled handles if ACL datacenter is not configured
func ACLDisabled(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
// checkACLDisabled will return a standard response if ACLs are disabled. This
// returns true if they are disabled and we should not continue.
func (s *HTTPServer) checkACLDisabled(resp http.ResponseWriter, req *http.Request) bool {
if s.agent.config.ACLDatacenter != "" {
return false
}
resp.WriteHeader(http.StatusUnauthorized)
fmt.Fprint(resp, "ACL support disabled")
return nil, nil
return true
}
// ACLBootstrap is used to perform a one-time ACL bootstrap operation on
// a cluster to get the first management token.
func (s *HTTPServer) ACLBootstrap(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkACLDisabled(resp, req) {
return nil, nil
}
if req.Method != "PUT" {
return nil, MethodNotAllowedError{req.Method, []string{"PUT"}}
}
@ -48,6 +56,9 @@ func (s *HTTPServer) ACLBootstrap(resp http.ResponseWriter, req *http.Request) (
}
func (s *HTTPServer) ACLDestroy(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkACLDisabled(resp, req) {
return nil, nil
}
if req.Method != "PUT" {
return nil, MethodNotAllowedError{req.Method, []string{"PUT"}}
}
@ -74,6 +85,9 @@ func (s *HTTPServer) ACLDestroy(resp http.ResponseWriter, req *http.Request) (in
}
func (s *HTTPServer) ACLCreate(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkACLDisabled(resp, req) {
return nil, nil
}
if req.Method != "PUT" {
return nil, MethodNotAllowedError{req.Method, []string{"PUT"}}
}
@ -81,6 +95,9 @@ func (s *HTTPServer) ACLCreate(resp http.ResponseWriter, req *http.Request) (int
}
func (s *HTTPServer) ACLUpdate(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkACLDisabled(resp, req) {
return nil, nil
}
if req.Method != "PUT" {
return nil, MethodNotAllowedError{req.Method, []string{"PUT"}}
}
@ -129,6 +146,9 @@ func (s *HTTPServer) aclSet(resp http.ResponseWriter, req *http.Request, update
}
func (s *HTTPServer) ACLClone(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkACLDisabled(resp, req) {
return nil, nil
}
if req.Method != "PUT" {
return nil, MethodNotAllowedError{req.Method, []string{"PUT"}}
}
@ -181,6 +201,9 @@ func (s *HTTPServer) ACLClone(resp http.ResponseWriter, req *http.Request) (inte
}
func (s *HTTPServer) ACLGet(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkACLDisabled(resp, req) {
return nil, nil
}
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
@ -215,6 +238,9 @@ func (s *HTTPServer) ACLGet(resp http.ResponseWriter, req *http.Request) (interf
}
func (s *HTTPServer) ACLList(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkACLDisabled(resp, req) {
return nil, nil
}
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
@ -241,6 +267,9 @@ func (s *HTTPServer) ACLList(resp http.ResponseWriter, req *http.Request) (inter
}
func (s *HTTPServer) ACLReplicationStatus(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkACLDisabled(resp, req) {
return nil, nil
}
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}

39
agent/acl_endpoint_test.go
View File

@ -3,14 +3,53 @@ package agent
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/agent/structs"
)
func TestACL_Disabled_Response(t *testing.T) {
t.Parallel()
a := NewTestAgent(t.Name(), "")
defer a.Shutdown()
tests := []func(resp http.ResponseWriter, req *http.Request) (interface{}, error){
a.srv.ACLBootstrap,
a.srv.ACLDestroy,
a.srv.ACLCreate,
a.srv.ACLUpdate,
a.srv.ACLClone,
a.srv.ACLGet,
a.srv.ACLList,
a.srv.ACLReplicationStatus,
a.srv.AgentToken, // See TestAgent_Token.
}
for i, tt := range tests {
t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
req, _ := http.NewRequest("PUT", "/should/not/care", nil)
resp := httptest.NewRecorder()
obj, err := tt(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
if obj != nil {
t.Fatalf("bad: %#v", obj)
}
if got, want := resp.Code, http.StatusUnauthorized; got != want {
t.Fatalf("got %d want %d", got, want)
}
if !strings.Contains(resp.Body.String(), "ACL support disabled") {
t.Fatalf("bad: %#v", resp)
}
})
}
}
func makeTestACL(t *testing.T, srv *HTTPServer) string {
body := bytes.NewBuffer(nil)
enc := json.NewEncoder(body)

3
agent/agent_endpoint.go
View File

@ -809,6 +809,9 @@ func (h *httpLogHandler) HandleLog(log string) {
}
func (s *HTTPServer) AgentToken(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkACLDisabled(resp, req) {
return nil, nil
}
if req.Method != "PUT" {
return nil, MethodNotAllowedError{req.Method, []string{"PUT"}}
}

4
agent/agent_endpoint_test.go
View File

@ -1771,6 +1771,10 @@ func TestAgent_Monitor_ACLDeny(t *testing.T) {
func TestAgent_Token(t *testing.T) {
t.Parallel()
// The behavior of this handler when ACLs are disabled is vetted over
// in TestACL_Disabled_Response since there's already good infra set
// up over there to test this, and it calls the common function.
a := NewTestAgent(t.Name(), TestACLConfig()+`
acl_token = ""
acl_agent_token = ""

0
agent/config/segments_oss.go → agent/config/segment_oss.go
View File

0
agent/config/segments_oss_test.go → agent/config/segment_oss_test.go
View File

768
agent/consul/fsm.go
View File

@ -1,768 +0,0 @@
package consul
import (
"fmt"
"io"
"log"
"sync"
"time"
"github.com/armon/go-metrics"
"github.com/hashicorp/consul/agent/consul/state"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/go-msgpack/codec"
"github.com/hashicorp/raft"
)
// TODO (slackpad) - There are two refactors we should do here:
//
// 1. Register the different types from the state store and make the FSM more
// generic, especially around snapshot/restore. Those should really just
// pass the encoder into a WriteSnapshot() kind of method.
// 2. Check all the error return values from all the Write() calls.
// msgpackHandle is a shared handle for encoding/decoding msgpack payloads
var msgpackHandle = &codec.MsgpackHandle{}
// consulFSM implements a finite state machine that is used
// along with Raft to provide strong consistency. We implement
// this outside the Server to avoid exposing this outside the package.
type consulFSM struct {
logOutput io.Writer
logger *log.Logger
path string
// stateLock is only used to protect outside callers to State() from
// racing with Restore(), which is called by Raft (it puts in a totally
// new state store). Everything internal here is synchronized by the
// Raft side, so doesn't need to lock this.
stateLock sync.RWMutex
state *state.Store
gc *state.TombstoneGC
}
// consulSnapshot is used to provide a snapshot of the current
// state in a way that can be accessed concurrently with operations
// that may modify the live state.
type consulSnapshot struct {
state *state.Snapshot
}
// snapshotHeader is the first entry in our snapshot
type snapshotHeader struct {
// LastIndex is the last index that affects the data.
// This is used when we do the restore for watchers.
LastIndex uint64
}
// NewFSM is used to construct a new FSM with a blank state
func NewFSM(gc *state.TombstoneGC, logOutput io.Writer) (*consulFSM, error) {
stateNew, err := state.NewStateStore(gc)
if err != nil {
return nil, err
}
fsm := &consulFSM{
logOutput: logOutput,
logger: log.New(logOutput, "", log.LstdFlags),
state: stateNew,
gc: gc,
}
return fsm, nil
}
// State is used to return a handle to the current state
func (c *consulFSM) State() *state.Store {
c.stateLock.RLock()
defer c.stateLock.RUnlock()
return c.state
}
func (c *consulFSM) Apply(log *raft.Log) interface{} {
buf := log.Data
msgType := structs.MessageType(buf[0])
// Check if this message type should be ignored when unknown. This is
// used so that new commands can be added with developer control if older
// versions can safely ignore the command, or if they should crash.
ignoreUnknown := false
if msgType&structs.IgnoreUnknownTypeFlag == structs.IgnoreUnknownTypeFlag {
msgType &= ^structs.IgnoreUnknownTypeFlag
ignoreUnknown = true
}
switch msgType {
case structs.RegisterRequestType:
return c.applyRegister(buf[1:], log.Index)
case structs.DeregisterRequestType:
return c.applyDeregister(buf[1:], log.Index)
case structs.KVSRequestType:
return c.applyKVSOperation(buf[1:], log.Index)
case structs.SessionRequestType:
return c.applySessionOperation(buf[1:], log.Index)
case structs.ACLRequestType:
return c.applyACLOperation(buf[1:], log.Index)
case structs.TombstoneRequestType:
return c.applyTombstoneOperation(buf[1:], log.Index)
case structs.CoordinateBatchUpdateType:
return c.applyCoordinateBatchUpdate(buf[1:], log.Index)
case structs.PreparedQueryRequestType:
return c.applyPreparedQueryOperation(buf[1:], log.Index)
case structs.TxnRequestType:
return c.applyTxn(buf[1:], log.Index)
case structs.AutopilotRequestType:
return c.applyAutopilotUpdate(buf[1:], log.Index)
default:
if ignoreUnknown {
c.logger.Printf("[WARN] consul.fsm: ignoring unknown message type (%d), upgrade to newer version", msgType)
return nil
}
panic(fmt.Errorf("failed to apply request: %#v", buf))
}
}
func (c *consulFSM) applyRegister(buf []byte, index uint64) interface{} {
defer metrics.MeasureSince([]string{"consul", "fsm", "register"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "register"}, time.Now())
var req structs.RegisterRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
// Apply all updates in a single transaction
if err := c.state.EnsureRegistration(index, &req); err != nil {
c.logger.Printf("[WARN] consul.fsm: EnsureRegistration failed: %v", err)
return err
}
return nil
}
func (c *consulFSM) applyDeregister(buf []byte, index uint64) interface{} {
defer metrics.MeasureSince([]string{"consul", "fsm", "deregister"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "deregister"}, time.Now())
var req structs.DeregisterRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
// Either remove the service entry or the whole node. The precedence
// here is also baked into vetDeregisterWithACL() in acl.go, so if you
// make changes here, be sure to also adjust the code over there.
if req.ServiceID != "" {
if err := c.state.DeleteService(index, req.Node, req.ServiceID); err != nil {
c.logger.Printf("[WARN] consul.fsm: DeleteNodeService failed: %v", err)
return err
}
} else if req.CheckID != "" {
if err := c.state.DeleteCheck(index, req.Node, req.CheckID); err != nil {
c.logger.Printf("[WARN] consul.fsm: DeleteNodeCheck failed: %v", err)
return err
}
} else {
if err := c.state.DeleteNode(index, req.Node); err != nil {
c.logger.Printf("[WARN] consul.fsm: DeleteNode failed: %v", err)
return err
}
}
return nil
}
func (c *consulFSM) applyKVSOperation(buf []byte, index uint64) interface{} {
var req structs.KVSRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "kvs"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "kvs"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case api.KVSet:
return c.state.KVSSet(index, &req.DirEnt)
case api.KVDelete:
return c.state.KVSDelete(index, req.DirEnt.Key)
case api.KVDeleteCAS:
act, err := c.state.KVSDeleteCAS(index, req.DirEnt.ModifyIndex, req.DirEnt.Key)
if err != nil {
return err
}
return act
case api.KVDeleteTree:
return c.state.KVSDeleteTree(index, req.DirEnt.Key)
case api.KVCAS:
act, err := c.state.KVSSetCAS(index, &req.DirEnt)
if err != nil {
return err
}
return act
case api.KVLock:
act, err := c.state.KVSLock(index, &req.DirEnt)
if err != nil {
return err
}
return act
case api.KVUnlock:
act, err := c.state.KVSUnlock(index, &req.DirEnt)
if err != nil {
return err
}
return act
default:
err := fmt.Errorf("Invalid KVS operation '%s'", req.Op)
c.logger.Printf("[WARN] consul.fsm: %v", err)
return err
}
}
func (c *consulFSM) applySessionOperation(buf []byte, index uint64) interface{} {
var req structs.SessionRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "session"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "session"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case structs.SessionCreate:
if err := c.state.SessionCreate(index, &req.Session); err != nil {
return err
}
return req.Session.ID
case structs.SessionDestroy:
return c.state.SessionDestroy(index, req.Session.ID)
default:
c.logger.Printf("[WARN] consul.fsm: Invalid Session operation '%s'", req.Op)
return fmt.Errorf("Invalid Session operation '%s'", req.Op)
}
}
func (c *consulFSM) applyACLOperation(buf []byte, index uint64) interface{} {
var req structs.ACLRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "acl"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "acl"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case structs.ACLBootstrapInit:
enabled, err := c.state.ACLBootstrapInit(index)
if err != nil {
return err
}
return enabled
case structs.ACLBootstrapNow:
if err := c.state.ACLBootstrap(index, &req.ACL); err != nil {
return err
}
return &req.ACL
case structs.ACLForceSet, structs.ACLSet:
if err := c.state.ACLSet(index, &req.ACL); err != nil {
return err
}
return req.ACL.ID
case structs.ACLDelete:
return c.state.ACLDelete(index, req.ACL.ID)
default:
c.logger.Printf("[WARN] consul.fsm: Invalid ACL operation '%s'", req.Op)
return fmt.Errorf("Invalid ACL operation '%s'", req.Op)
}
}
func (c *consulFSM) applyTombstoneOperation(buf []byte, index uint64) interface{} {
var req structs.TombstoneRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "tombstone"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "tombstone"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case structs.TombstoneReap:
return c.state.ReapTombstones(req.ReapIndex)
default:
c.logger.Printf("[WARN] consul.fsm: Invalid Tombstone operation '%s'", req.Op)
return fmt.Errorf("Invalid Tombstone operation '%s'", req.Op)
}
}
// applyCoordinateBatchUpdate processes a batch of coordinate updates and applies
// them in a single underlying transaction. This interface isn't 1:1 with the outer
// update interface that the coordinate endpoint exposes, so we made it single
// purpose and avoided the opcode convention.
func (c *consulFSM) applyCoordinateBatchUpdate(buf []byte, index uint64) interface{} {
var updates structs.Coordinates
if err := structs.Decode(buf, &updates); err != nil {
panic(fmt.Errorf("failed to decode batch updates: %v", err))
}
defer metrics.MeasureSince([]string{"consul", "fsm", "coordinate", "batch-update"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "coordinate", "batch-update"}, time.Now())
if err := c.state.CoordinateBatchUpdate(index, updates); err != nil {
return err
}
return nil
}
// applyPreparedQueryOperation applies the given prepared query operation to the
// state store.
func (c *consulFSM) applyPreparedQueryOperation(buf []byte, index uint64) interface{} {
var req structs.PreparedQueryRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "prepared-query"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "prepared-query"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case structs.PreparedQueryCreate, structs.PreparedQueryUpdate:
return c.state.PreparedQuerySet(index, req.Query)
case structs.PreparedQueryDelete:
return c.state.PreparedQueryDelete(index, req.Query.ID)
default:
c.logger.Printf("[WARN] consul.fsm: Invalid PreparedQuery operation '%s'", req.Op)
return fmt.Errorf("Invalid PreparedQuery operation '%s'", req.Op)
}
}
func (c *consulFSM) applyTxn(buf []byte, index uint64) interface{} {
var req structs.TxnRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSince([]string{"consul", "fsm", "txn"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "txn"}, time.Now())
results, errors := c.state.TxnRW(index, req.Ops)
return structs.TxnResponse{
Results: results,
Errors: errors,
}
}
func (c *consulFSM) applyAutopilotUpdate(buf []byte, index uint64) interface{} {
var req structs.AutopilotSetConfigRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSince([]string{"consul", "fsm", "autopilot"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "autopilot"}, time.Now())
if req.CAS {
act, err := c.state.AutopilotCASConfig(index, req.Config.ModifyIndex, &req.Config)
if err != nil {
return err
}
return act
}
return c.state.AutopilotSetConfig(index, &req.Config)
}
func (c *consulFSM) Snapshot() (raft.FSMSnapshot, error) {
defer func(start time.Time) {
c.logger.Printf("[INFO] consul.fsm: snapshot created in %v", time.Since(start))
}(time.Now())
return &consulSnapshot{c.state.Snapshot()}, nil
}
// Restore streams in the snapshot and replaces the current state store with a
// new one based on the snapshot if all goes OK during the restore.
func (c *consulFSM) Restore(old io.ReadCloser) error {
defer old.Close()
// Create a new state store.
stateNew, err := state.NewStateStore(c.gc)
if err != nil {
return err
}
// Set up a new restore transaction
restore := stateNew.Restore()
defer restore.Abort()
// Create a decoder
dec := codec.NewDecoder(old, msgpackHandle)
// Read in the header
var header snapshotHeader
if err := dec.Decode(&header); err != nil {
return err
}
// Populate the new state
msgType := make([]byte, 1)
for {
// Read the message type
_, err := old.Read(msgType)
if err == io.EOF {
break
} else if err != nil {
return err
}
// Decode
switch structs.MessageType(msgType[0]) {
case structs.RegisterRequestType:
var req structs.RegisterRequest
if err := dec.Decode(&req); err != nil {
return err
}
if err := restore.Registration(header.LastIndex, &req); err != nil {
return err
}
case structs.KVSRequestType:
var req structs.DirEntry
if err := dec.Decode(&req); err != nil {
return err
}
if err := restore.KVS(&req); err != nil {
return err
}
case structs.TombstoneRequestType:
var req structs.DirEntry
if err := dec.Decode(&req); err != nil {
return err
}
// For historical reasons, these are serialized in the
// snapshots as KV entries. We want to keep the snapshot
// format compatible with pre-0.6 versions for now.
stone := &state.Tombstone{
Key: req.Key,
Index: req.ModifyIndex,
}
if err := restore.Tombstone(stone); err != nil {
return err
}
case structs.SessionRequestType:
var req structs.Session
if err := dec.Decode(&req); err != nil {
return err
}
if err := restore.Session(&req); err != nil {
return err
}
case structs.ACLRequestType:
var req structs.ACL
if err := dec.Decode(&req); err != nil {
return err
}
if err := restore.ACL(&req); err != nil {
return err
}
case structs.ACLBootstrapRequestType:
var req structs.ACLBootstrap
if err := dec.Decode(&req); err != nil {
return err
}
if err := restore.ACLBootstrap(&req); err != nil {
return err
}
case structs.CoordinateBatchUpdateType:
var req structs.Coordinates
if err := dec.Decode(&req); err != nil {
return err
}
if err := restore.Coordinates(header.LastIndex, req); err != nil {
return err
}
case structs.PreparedQueryRequestType:
var req structs.PreparedQuery
if err := dec.Decode(&req); err != nil {
return err
}
if err := restore.PreparedQuery(&req); err != nil {
return err
}
case structs.AutopilotRequestType:
var req structs.AutopilotConfig
if err := dec.Decode(&req); err != nil {
return err
}
if err := restore.Autopilot(&req); err != nil {
return err
}
default:
return fmt.Errorf("Unrecognized msg type: %v", msgType)
}
}
restore.Commit()
// External code might be calling State(), so we need to synchronize
// here to make sure we swap in the new state store atomically.
c.stateLock.Lock()
stateOld := c.state
c.state = stateNew
c.stateLock.Unlock()
// Signal that the old state store has been abandoned. This is required
// because we don't operate on it any more, we just throw it away, so
// blocking queries won't see any changes and need to be woken up.
stateOld.Abandon()
return nil
}
func (s *consulSnapshot) Persist(sink raft.SnapshotSink) error {
defer metrics.MeasureSince([]string{"consul", "fsm", "persist"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "persist"}, time.Now())
// Register the nodes
encoder := codec.NewEncoder(sink, msgpackHandle)
// Write the header
header := snapshotHeader{
LastIndex: s.state.LastIndex(),
}
if err := encoder.Encode(&header); err != nil {
sink.Cancel()
return err
}
if err := s.persistNodes(sink, encoder); err != nil {
sink.Cancel()
return err
}
if err := s.persistSessions(sink, encoder); err != nil {
sink.Cancel()
return err
}
if err := s.persistACLs(sink, encoder); err != nil {
sink.Cancel()
return err
}
if err := s.persistKVs(sink, encoder); err != nil {
sink.Cancel()
return err
}
if err := s.persistTombstones(sink, encoder); err != nil {
sink.Cancel()
return err
}
if err := s.persistPreparedQueries(sink, encoder); err != nil {
sink.Cancel()
return err
}
if err := s.persistAutopilot(sink, encoder); err != nil {
sink.Cancel()
return err
}
return nil
}
func (s *consulSnapshot) persistNodes(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
// Get all the nodes
nodes, err := s.state.Nodes()
if err != nil {
return err
}
// Register each node
for node := nodes.Next(); node != nil; node = nodes.Next() {
n := node.(*structs.Node)
req := structs.RegisterRequest{
Node: n.Node,
Address: n.Address,
TaggedAddresses: n.TaggedAddresses,
}
// Register the node itself
sink.Write([]byte{byte(structs.RegisterRequestType)})
if err := encoder.Encode(&req); err != nil {
return err
}
// Register each service this node has
services, err := s.state.Services(n.Node)
if err != nil {
return err
}
for service := services.Next(); service != nil; service = services.Next() {
sink.Write([]byte{byte(structs.RegisterRequestType)})
req.Service = service.(*structs.ServiceNode).ToNodeService()
if err := encoder.Encode(&req); err != nil {
return err
}
}
// Register each check this node has
req.Service = nil
checks, err := s.state.Checks(n.Node)
if err != nil {
return err
}
for check := checks.Next(); check != nil; check = checks.Next() {
sink.Write([]byte{byte(structs.RegisterRequestType)})
req.Check = check.(*structs.HealthCheck)
if err := encoder.Encode(&req); err != nil {
return err
}
}
}
// Save the coordinates separately since they are not part of the
// register request interface. To avoid copying them out, we turn
// them into batches with a single coordinate each.
coords, err := s.state.Coordinates()
if err != nil {
return err
}
for coord := coords.Next(); coord != nil; coord = coords.Next() {
sink.Write([]byte{byte(structs.CoordinateBatchUpdateType)})
updates := structs.Coordinates{coord.(*structs.Coordinate)}
if err := encoder.Encode(&updates); err != nil {
return err
}
}
return nil
}
func (s *consulSnapshot) persistSessions(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
sessions, err := s.state.Sessions()
if err != nil {
return err
}
for session := sessions.Next(); session != nil; session = sessions.Next() {
sink.Write([]byte{byte(structs.SessionRequestType)})
if err := encoder.Encode(session.(*structs.Session)); err != nil {
return err
}
}
return nil
}
func (s *consulSnapshot) persistACLs(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
acls, err := s.state.ACLs()
if err != nil {
return err
}
for acl := acls.Next(); acl != nil; acl = acls.Next() {
sink.Write([]byte{byte(structs.ACLRequestType)})
if err := encoder.Encode(acl.(*structs.ACL)); err != nil {
return err
}
}
bs, err := s.state.ACLBootstrap()
if err != nil {
return err
}
if bs != nil {
sink.Write([]byte{byte(structs.ACLBootstrapRequestType)})
if err := encoder.Encode(bs); err != nil {
return err
}
}
return nil
}
func (s *consulSnapshot) persistKVs(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
entries, err := s.state.KVs()
if err != nil {
return err
}
for entry := entries.Next(); entry != nil; entry = entries.Next() {
sink.Write([]byte{byte(structs.KVSRequestType)})
if err := encoder.Encode(entry.(*structs.DirEntry)); err != nil {
return err
}
}
return nil
}
func (s *consulSnapshot) persistTombstones(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
stones, err := s.state.Tombstones()
if err != nil {
return err
}
for stone := stones.Next(); stone != nil; stone = stones.Next() {
sink.Write([]byte{byte(structs.TombstoneRequestType)})
// For historical reasons, these are serialized in the snapshots
// as KV entries. We want to keep the snapshot format compatible
// with pre-0.6 versions for now.
s := stone.(*state.Tombstone)
fake := &structs.DirEntry{
Key: s.Key,
RaftIndex: structs.RaftIndex{
ModifyIndex: s.Index,
},
}
if err := encoder.Encode(fake); err != nil {
return err
}
}
return nil
}
func (s *consulSnapshot) persistPreparedQueries(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
queries, err := s.state.PreparedQueries()
if err != nil {
return err
}
for _, query := range queries {
sink.Write([]byte{byte(structs.PreparedQueryRequestType)})
if err := encoder.Encode(query); err != nil {
return err
}
}
return nil
}
func (s *consulSnapshot) persistAutopilot(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
autopilot, err := s.state.Autopilot()
if err != nil {
return err
}
if autopilot == nil {
return nil
}
sink.Write([]byte{byte(structs.AutopilotRequestType)})
if err := encoder.Encode(autopilot); err != nil {
return err
}
return nil
}
func (s *consulSnapshot) Release() {
s.state.Close()
}

263
agent/consul/fsm/commands_oss.go Normal file
View File

@ -0,0 +1,263 @@
package fsm
import (
"fmt"
"time"
"github.com/armon/go-metrics"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
)
func init() {
registerCommand(structs.RegisterRequestType, (*FSM).applyRegister)
registerCommand(structs.DeregisterRequestType, (*FSM).applyDeregister)
registerCommand(structs.KVSRequestType, (*FSM).applyKVSOperation)
registerCommand(structs.SessionRequestType, (*FSM).applySessionOperation)
registerCommand(structs.ACLRequestType, (*FSM).applyACLOperation)
registerCommand(structs.TombstoneRequestType, (*FSM).applyTombstoneOperation)
registerCommand(structs.CoordinateBatchUpdateType, (*FSM).applyCoordinateBatchUpdate)
registerCommand(structs.PreparedQueryRequestType, (*FSM).applyPreparedQueryOperation)
registerCommand(structs.TxnRequestType, (*FSM).applyTxn)
registerCommand(structs.AutopilotRequestType, (*FSM).applyAutopilotUpdate)
}
func (c *FSM) applyRegister(buf []byte, index uint64) interface{} {
defer metrics.MeasureSince([]string{"consul", "fsm", "register"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "register"}, time.Now())
var req structs.RegisterRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
// Apply all updates in a single transaction
if err := c.state.EnsureRegistration(index, &req); err != nil {
c.logger.Printf("[WARN] consul.fsm: EnsureRegistration failed: %v", err)
return err
}
return nil
}
func (c *FSM) applyDeregister(buf []byte, index uint64) interface{} {
defer metrics.MeasureSince([]string{"consul", "fsm", "deregister"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "deregister"}, time.Now())
var req structs.DeregisterRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
// Either remove the service entry or the whole node. The precedence
// here is also baked into vetDeregisterWithACL() in acl.go, so if you
// make changes here, be sure to also adjust the code over there.
if req.ServiceID != "" {
if err := c.state.DeleteService(index, req.Node, req.ServiceID); err != nil {
c.logger.Printf("[WARN] consul.fsm: DeleteNodeService failed: %v", err)
return err
}
} else if req.CheckID != "" {
if err := c.state.DeleteCheck(index, req.Node, req.CheckID); err != nil {
c.logger.Printf("[WARN] consul.fsm: DeleteNodeCheck failed: %v", err)
return err
}
} else {
if err := c.state.DeleteNode(index, req.Node); err != nil {
c.logger.Printf("[WARN] consul.fsm: DeleteNode failed: %v", err)
return err
}
}
return nil
}
func (c *FSM) applyKVSOperation(buf []byte, index uint64) interface{} {
var req structs.KVSRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "kvs"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "kvs"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case api.KVSet:
return c.state.KVSSet(index, &req.DirEnt)
case api.KVDelete:
return c.state.KVSDelete(index, req.DirEnt.Key)
case api.KVDeleteCAS:
act, err := c.state.KVSDeleteCAS(index, req.DirEnt.ModifyIndex, req.DirEnt.Key)
if err != nil {
return err
}
return act
case api.KVDeleteTree:
return c.state.KVSDeleteTree(index, req.DirEnt.Key)
case api.KVCAS:
act, err := c.state.KVSSetCAS(index, &req.DirEnt)
if err != nil {
return err
}
return act
case api.KVLock:
act, err := c.state.KVSLock(index, &req.DirEnt)
if err != nil {
return err
}
return act
case api.KVUnlock:
act, err := c.state.KVSUnlock(index, &req.DirEnt)
if err != nil {
return err
}
return act
default:
err := fmt.Errorf("Invalid KVS operation '%s'", req.Op)
c.logger.Printf("[WARN] consul.fsm: %v", err)
return err
}
}
func (c *FSM) applySessionOperation(buf []byte, index uint64) interface{} {
var req structs.SessionRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "session"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "session"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case structs.SessionCreate:
if err := c.state.SessionCreate(index, &req.Session); err != nil {
return err
}
return req.Session.ID
case structs.SessionDestroy:
return c.state.SessionDestroy(index, req.Session.ID)
default:
c.logger.Printf("[WARN] consul.fsm: Invalid Session operation '%s'", req.Op)
return fmt.Errorf("Invalid Session operation '%s'", req.Op)
}
}
func (c *FSM) applyACLOperation(buf []byte, index uint64) interface{} {
var req structs.ACLRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "acl"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "acl"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case structs.ACLBootstrapInit:
enabled, err := c.state.ACLBootstrapInit(index)
if err != nil {
return err
}
return enabled
case structs.ACLBootstrapNow:
if err := c.state.ACLBootstrap(index, &req.ACL); err != nil {
return err
}
return &req.ACL
case structs.ACLForceSet, structs.ACLSet:
if err := c.state.ACLSet(index, &req.ACL); err != nil {
return err
}
return req.ACL.ID
case structs.ACLDelete:
return c.state.ACLDelete(index, req.ACL.ID)
default:
c.logger.Printf("[WARN] consul.fsm: Invalid ACL operation '%s'", req.Op)
return fmt.Errorf("Invalid ACL operation '%s'", req.Op)
}
}
func (c *FSM) applyTombstoneOperation(buf []byte, index uint64) interface{} {
var req structs.TombstoneRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "tombstone"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "tombstone"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case structs.TombstoneReap:
return c.state.ReapTombstones(req.ReapIndex)
default:
c.logger.Printf("[WARN] consul.fsm: Invalid Tombstone operation '%s'", req.Op)
return fmt.Errorf("Invalid Tombstone operation '%s'", req.Op)
}
}
// applyCoordinateBatchUpdate processes a batch of coordinate updates and applies
// them in a single underlying transaction. This interface isn't 1:1 with the outer
// update interface that the coordinate endpoint exposes, so we made it single
// purpose and avoided the opcode convention.
func (c *FSM) applyCoordinateBatchUpdate(buf []byte, index uint64) interface{} {
var updates structs.Coordinates
if err := structs.Decode(buf, &updates); err != nil {
panic(fmt.Errorf("failed to decode batch updates: %v", err))
}
defer metrics.MeasureSince([]string{"consul", "fsm", "coordinate", "batch-update"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "coordinate", "batch-update"}, time.Now())
if err := c.state.CoordinateBatchUpdate(index, updates); err != nil {
return err
}
return nil
}
// applyPreparedQueryOperation applies the given prepared query operation to the
// state store.
func (c *FSM) applyPreparedQueryOperation(buf []byte, index uint64) interface{} {
var req structs.PreparedQueryRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSinceWithLabels([]string{"consul", "fsm", "prepared-query"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
defer metrics.MeasureSinceWithLabels([]string{"fsm", "prepared-query"}, time.Now(),
[]metrics.Label{{Name: "op", Value: string(req.Op)}})
switch req.Op {
case structs.PreparedQueryCreate, structs.PreparedQueryUpdate:
return c.state.PreparedQuerySet(index, req.Query)
case structs.PreparedQueryDelete:
return c.state.PreparedQueryDelete(index, req.Query.ID)
default:
c.logger.Printf("[WARN] consul.fsm: Invalid PreparedQuery operation '%s'", req.Op)
return fmt.Errorf("Invalid PreparedQuery operation '%s'", req.Op)
}
}
func (c *FSM) applyTxn(buf []byte, index uint64) interface{} {
var req structs.TxnRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSince([]string{"consul", "fsm", "txn"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "txn"}, time.Now())
results, errors := c.state.TxnRW(index, req.Ops)
return structs.TxnResponse{
Results: results,
Errors: errors,
}
}
func (c *FSM) applyAutopilotUpdate(buf []byte, index uint64) interface{} {
var req structs.AutopilotSetConfigRequest
if err := structs.Decode(buf, &req); err != nil {
panic(fmt.Errorf("failed to decode request: %v", err))
}
defer metrics.MeasureSince([]string{"consul", "fsm", "autopilot"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "autopilot"}, time.Now())
if req.CAS {
act, err := c.state.AutopilotCASConfig(index, req.Config.ModifyIndex, &req.Config)
if err != nil {
return err
}
return act
}
return c.state.AutopilotSetConfig(index, &req.Config)
}

630
agent/consul/fsm_test.go → agent/consul/fsm/commands_oss_test.go
View File

@ -1,50 +1,21 @@
package consul
package fsm
import (
"bytes"
"fmt"
"math/rand"
"os"
"reflect"
"testing"
"time"
"github.com/hashicorp/consul/agent/consul/state"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/lib"
"github.com/hashicorp/consul/types"
"github.com/hashicorp/go-uuid"
"github.com/hashicorp/raft"
"github.com/hashicorp/serf/coordinate"
"github.com/pascaldekloe/goe/verify"
)
type MockSink struct {
*bytes.Buffer
cancel bool
}
func (m *MockSink) ID() string {
return "Mock"
}
func (m *MockSink) Cancel() error {
m.cancel = true
return nil
}
func (m *MockSink) Close() error {
return nil
}
func makeLog(buf []byte) *raft.Log {
return &raft.Log{
Index: 1,
Term: 1,
Type: raft.LogCommand,
Data: buf,
}
}
func generateUUID() (ret string) {
var err error
if ret, err = uuid.GenerateUUID(); err != nil {
@ -53,9 +24,20 @@ func generateUUID() (ret string) {
return ret
}
func generateRandomCoordinate() *coordinate.Coordinate {
config := coordinate.DefaultConfig()
coord := coordinate.NewCoordinate(config)
for i := range coord.Vec {
coord.Vec[i] = rand.NormFloat64()
}
coord.Error = rand.NormFloat64()
coord.Adjustment = rand.NormFloat64()
return coord
}
func TestFSM_RegisterNode(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -99,7 +81,7 @@ func TestFSM_RegisterNode(t *testing.T) {
func TestFSM_RegisterNode_Service(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -162,7 +144,7 @@ func TestFSM_RegisterNode_Service(t *testing.T) {
func TestFSM_DeregisterService(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -224,7 +206,7 @@ func TestFSM_DeregisterService(t *testing.T) {
func TestFSM_DeregisterCheck(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -286,7 +268,7 @@ func TestFSM_DeregisterCheck(t *testing.T) {
func TestFSM_DeregisterNode(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -361,320 +343,9 @@ func TestFSM_DeregisterNode(t *testing.T) {
}
}
func TestFSM_SnapshotRestore(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
// Add some state
fsm.state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"})
fsm.state.EnsureNode(2, &structs.Node{Node: "baz", Address: "127.0.0.2", TaggedAddresses: map[string]string{"hello": "1.2.3.4"}})
fsm.state.EnsureService(3, "foo", &structs.NodeService{ID: "web", Service: "web", Tags: nil, Address: "127.0.0.1", Port: 80})
fsm.state.EnsureService(4, "foo", &structs.NodeService{ID: "db", Service: "db", Tags: []string{"primary"}, Address: "127.0.0.1", Port: 5000})
fsm.state.EnsureService(5, "baz", &structs.NodeService{ID: "web", Service: "web", Tags: nil, Address: "127.0.0.2", Port: 80})
fsm.state.EnsureService(6, "baz", &structs.NodeService{ID: "db", Service: "db", Tags: []string{"secondary"}, Address: "127.0.0.2", Port: 5000})
fsm.state.EnsureCheck(7, &structs.HealthCheck{
Node: "foo",
CheckID: "web",
Name: "web connectivity",
Status: api.HealthPassing,
ServiceID: "web",
})
fsm.state.KVSSet(8, &structs.DirEntry{
Key: "/test",
Value: []byte("foo"),
})
session := &structs.Session{ID: generateUUID(), Node: "foo"}
fsm.state.SessionCreate(9, session)
acl := &structs.ACL{ID: generateUUID(), Name: "User Token"}
fsm.state.ACLSet(10, acl)
if _, err := fsm.state.ACLBootstrapInit(10); err != nil {
t.Fatalf("err: %v", err)
}
fsm.state.KVSSet(11, &structs.DirEntry{
Key: "/remove",
Value: []byte("foo"),
})
fsm.state.KVSDelete(12, "/remove")
idx, _, err := fsm.state.KVSList(nil, "/remove")
if err != nil {
t.Fatalf("err: %s", err)
}
if idx != 12 {
t.Fatalf("bad index: %d", idx)
}
updates := structs.Coordinates{
&structs.Coordinate{
Node: "baz",
Coord: generateRandomCoordinate(),
},
&structs.Coordinate{
Node: "foo",
Coord: generateRandomCoordinate(),
},
}
if err := fsm.state.CoordinateBatchUpdate(13, updates); err != nil {
t.Fatalf("err: %s", err)
}
query := structs.PreparedQuery{
ID: generateUUID(),
Service: structs.ServiceQuery{
Service: "web",
},
RaftIndex: structs.RaftIndex{
CreateIndex: 14,
ModifyIndex: 14,
},
}
if err := fsm.state.PreparedQuerySet(14, &query); err != nil {
t.Fatalf("err: %s", err)
}
autopilotConf := &structs.AutopilotConfig{
CleanupDeadServers: true,
LastContactThreshold: 100 * time.Millisecond,
MaxTrailingLogs: 222,
}
if err := fsm.state.AutopilotSetConfig(15, autopilotConf); err != nil {
t.Fatalf("err: %s", err)
}
// Snapshot
snap, err := fsm.Snapshot()
if err != nil {
t.Fatalf("err: %v", err)
}
defer snap.Release()
// Persist
buf := bytes.NewBuffer(nil)
sink := &MockSink{buf, false}
if err := snap.Persist(sink); err != nil {
t.Fatalf("err: %v", err)
}
// Try to restore on a new FSM
fsm2, err := NewFSM(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
// Do a restore
if err := fsm2.Restore(sink); err != nil {
t.Fatalf("err: %v", err)
}
// Verify the contents
_, nodes, err := fsm2.state.Nodes(nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if len(nodes) != 2 {
t.Fatalf("bad: %v", nodes)
}
if nodes[0].Node != "baz" ||
nodes[0].Address != "127.0.0.2" ||
len(nodes[0].TaggedAddresses) != 1 ||
nodes[0].TaggedAddresses["hello"] != "1.2.3.4" {
t.Fatalf("bad: %v", nodes[0])
}
if nodes[1].Node != "foo" ||
nodes[1].Address != "127.0.0.1" ||
len(nodes[1].TaggedAddresses) != 0 {
t.Fatalf("bad: %v", nodes[1])
}
_, fooSrv, err := fsm2.state.NodeServices(nil, "foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if len(fooSrv.Services) != 2 {
t.Fatalf("Bad: %v", fooSrv)
}
if !lib.StrContains(fooSrv.Services["db"].Tags, "primary") {
t.Fatalf("Bad: %v", fooSrv)
}
if fooSrv.Services["db"].Port != 5000 {
t.Fatalf("Bad: %v", fooSrv)
}
_, checks, err := fsm2.state.NodeChecks(nil, "foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if len(checks) != 1 {
t.Fatalf("Bad: %v", checks)
}
// Verify key is set
_, d, err := fsm2.state.KVSGet(nil, "/test")
if err != nil {
t.Fatalf("err: %v", err)
}
if string(d.Value) != "foo" {
t.Fatalf("bad: %v", d)
}
// Verify session is restored
idx, s, err := fsm2.state.SessionGet(nil, session.ID)
if err != nil {
t.Fatalf("err: %v", err)
}
if s.Node != "foo" {
t.Fatalf("bad: %v", s)
}
if idx <= 1 {
t.Fatalf("bad index: %d", idx)
}
// Verify ACL is restored
_, a, err := fsm2.state.ACLGet(nil, acl.ID)
if err != nil {
t.Fatalf("err: %v", err)
}
if a.Name != "User Token" {
t.Fatalf("bad: %v", a)
}
if a.ModifyIndex <= 1 {
t.Fatalf("bad index: %d", idx)
}
gotB, err := fsm2.state.ACLGetBootstrap()
if err != nil {
t.Fatalf("err: %v", err)
}
wantB := &structs.ACLBootstrap{
AllowBootstrap: true,
RaftIndex: structs.RaftIndex{
CreateIndex: 10,
ModifyIndex: 10,
},
}
verify.Values(t, "", gotB, wantB)
// Verify tombstones are restored
func() {
snap := fsm2.state.Snapshot()
defer snap.Close()
stones, err := snap.Tombstones()
if err != nil {
t.Fatalf("err: %s", err)
}
stone := stones.Next().(*state.Tombstone)
if stone == nil {
t.Fatalf("missing tombstone")
}
if stone.Key != "/remove" || stone.Index != 12 {
t.Fatalf("bad: %v", stone)
}
if stones.Next() != nil {
t.Fatalf("unexpected extra tombstones")
}
}()
// Verify coordinates are restored
_, coords, err := fsm2.state.Coordinates(nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(coords, updates) {
t.Fatalf("bad: %#v", coords)
}
// Verify queries are restored.
_, queries, err := fsm2.state.PreparedQueryList(nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if len(queries) != 1 {
t.Fatalf("bad: %#v", queries)
}
if !reflect.DeepEqual(queries[0], &query) {
t.Fatalf("bad: %#v", queries[0])
}
// Verify autopilot config is restored.
_, restoredConf, err := fsm2.state.AutopilotConfig()
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(restoredConf, autopilotConf) {
t.Fatalf("bad: %#v, %#v", restoredConf, autopilotConf)
}
// Snapshot
snap, err = fsm2.Snapshot()
if err != nil {
t.Fatalf("err: %v", err)
}
defer snap.Release()
// Persist
buf = bytes.NewBuffer(nil)
sink = &MockSink{buf, false}
if err := snap.Persist(sink); err != nil {
t.Fatalf("err: %v", err)
}
// Try to restore on the old FSM and make sure it abandons the old state
// store.
abandonCh := fsm.state.AbandonCh()
if err := fsm.Restore(sink); err != nil {
t.Fatalf("err: %v", err)
}
select {
case <-abandonCh:
default:
t.Fatalf("bad")
}
}
func TestFSM_BadRestore(t *testing.T) {
t.Parallel()
// Create an FSM with some state.
fsm, err := NewFSM(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
fsm.state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"})
abandonCh := fsm.state.AbandonCh()
// Do a bad restore.
buf := bytes.NewBuffer([]byte("bad snapshot"))
sink := &MockSink{buf, false}
if err := fsm.Restore(sink); err == nil {
t.Fatalf("err: %v", err)
}
// Verify the contents didn't get corrupted.
_, nodes, err := fsm.state.Nodes(nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if len(nodes) != 1 {
t.Fatalf("bad: %v", nodes)
}
if nodes[0].Node != "foo" ||
nodes[0].Address != "127.0.0.1" ||
len(nodes[0].TaggedAddresses) != 0 {
t.Fatalf("bad: %v", nodes[0])
}
// Verify the old state store didn't get abandoned.
select {
case <-abandonCh:
t.Fatalf("bad")
default:
}
}
func TestFSM_KVSDelete(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -720,7 +391,7 @@ func TestFSM_KVSDelete(t *testing.T) {
func TestFSM_KVSDeleteTree(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -767,7 +438,7 @@ func TestFSM_KVSDeleteTree(t *testing.T) {
func TestFSM_KVSDeleteCheckAndSet(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -823,7 +494,7 @@ func TestFSM_KVSDeleteCheckAndSet(t *testing.T) {
func TestFSM_KVSCheckAndSet(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -878,9 +549,117 @@ func TestFSM_KVSCheckAndSet(t *testing.T) {
}
}
func TestFSM_KVSLock(t *testing.T) {
t.Parallel()
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
fsm.state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"})
session := &structs.Session{ID: generateUUID(), Node: "foo"}
fsm.state.SessionCreate(2, session)
req := structs.KVSRequest{
Datacenter: "dc1",
Op: api.KVLock,
DirEnt: structs.DirEntry{
Key: "/test/path",
Value: []byte("test"),
Session: session.ID,
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != true {
t.Fatalf("resp: %v", resp)
}
// Verify key is locked
_, d, err := fsm.state.KVSGet(nil, "/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d == nil {
t.Fatalf("missing")
}
if d.LockIndex != 1 {
t.Fatalf("bad: %v", *d)
}
if d.Session != session.ID {
t.Fatalf("bad: %v", *d)
}
}
func TestFSM_KVSUnlock(t *testing.T) {
t.Parallel()
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
fsm.state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"})
session := &structs.Session{ID: generateUUID(), Node: "foo"}
fsm.state.SessionCreate(2, session)
req := structs.KVSRequest{
Datacenter: "dc1",
Op: api.KVLock,
DirEnt: structs.DirEntry{
Key: "/test/path",
Value: []byte("test"),
Session: session.ID,
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != true {
t.Fatalf("resp: %v", resp)
}
req = structs.KVSRequest{
Datacenter: "dc1",
Op: api.KVUnlock,
DirEnt: structs.DirEntry{
Key: "/test/path",
Value: []byte("test"),
Session: session.ID,
},
}
buf, err = structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
if resp != true {
t.Fatalf("resp: %v", resp)
}
// Verify key is unlocked
_, d, err := fsm.state.KVSGet(nil, "/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d == nil {
t.Fatalf("missing")
}
if d.LockIndex != 1 {
t.Fatalf("bad: %v", *d)
}
if d.Session != "" {
t.Fatalf("bad: %v", *d)
}
}
func TestFSM_CoordinateUpdate(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -921,7 +700,7 @@ func TestFSM_CoordinateUpdate(t *testing.T) {
func TestFSM_SessionCreate_Destroy(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -999,117 +778,9 @@ func TestFSM_SessionCreate_Destroy(t *testing.T) {
}
}
func TestFSM_KVSLock(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
fsm.state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"})
session := &structs.Session{ID: generateUUID(), Node: "foo"}
fsm.state.SessionCreate(2, session)
req := structs.KVSRequest{
Datacenter: "dc1",
Op: api.KVLock,
DirEnt: structs.DirEntry{
Key: "/test/path",
Value: []byte("test"),
Session: session.ID,
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != true {
t.Fatalf("resp: %v", resp)
}
// Verify key is locked
_, d, err := fsm.state.KVSGet(nil, "/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d == nil {
t.Fatalf("missing")
}
if d.LockIndex != 1 {
t.Fatalf("bad: %v", *d)
}
if d.Session != session.ID {
t.Fatalf("bad: %v", *d)
}
}
func TestFSM_KVSUnlock(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
fsm.state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"})
session := &structs.Session{ID: generateUUID(), Node: "foo"}
fsm.state.SessionCreate(2, session)
req := structs.KVSRequest{
Datacenter: "dc1",
Op: api.KVLock,
DirEnt: structs.DirEntry{
Key: "/test/path",
Value: []byte("test"),
Session: session.ID,
},
}
buf, err := structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp := fsm.Apply(makeLog(buf))
if resp != true {
t.Fatalf("resp: %v", resp)
}
req = structs.KVSRequest{
Datacenter: "dc1",
Op: api.KVUnlock,
DirEnt: structs.DirEntry{
Key: "/test/path",
Value: []byte("test"),
Session: session.ID,
},
}
buf, err = structs.Encode(structs.KVSRequestType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
resp = fsm.Apply(makeLog(buf))
if resp != true {
t.Fatalf("resp: %v", resp)
}
// Verify key is unlocked
_, d, err := fsm.state.KVSGet(nil, "/test/path")
if err != nil {
t.Fatalf("err: %v", err)
}
if d == nil {
t.Fatalf("missing")
}
if d.LockIndex != 1 {
t.Fatalf("bad: %v", *d)
}
if d.Session != "" {
t.Fatalf("bad: %v", *d)
}
}
func TestFSM_ACL_CRUD(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1229,7 +900,7 @@ func TestFSM_ACL_CRUD(t *testing.T) {
func TestFSM_PreparedQuery_CRUD(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1327,7 +998,7 @@ func TestFSM_PreparedQuery_CRUD(t *testing.T) {
func TestFSM_TombstoneReap(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1375,7 +1046,7 @@ func TestFSM_TombstoneReap(t *testing.T) {
func TestFSM_Txn(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1417,7 +1088,7 @@ func TestFSM_Txn(t *testing.T) {
func TestFSM_Autopilot(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1476,28 +1147,3 @@ func TestFSM_Autopilot(t *testing.T) {
t.Fatalf("bad: %v", config.CleanupDeadServers)
}
}
func TestFSM_IgnoreUnknown(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
// Create a new reap request
type UnknownRequest struct {
Foo string
}
req := UnknownRequest{Foo: "bar"}
msgType := structs.IgnoreUnknownTypeFlag | 64
buf, err := structs.Encode(msgType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
// Apply should work, even though not supported
resp := fsm.Apply(makeLog(buf))
if err, ok := resp.(error); ok {
t.Fatalf("resp: %v", err)
}
}

190
agent/consul/fsm/fsm.go Normal file
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@ -0,0 +1,190 @@
package fsm
import (
"fmt"
"io"
"log"
"sync"
"time"
"github.com/hashicorp/consul/agent/consul/state"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/go-msgpack/codec"
"github.com/hashicorp/raft"
)
// msgpackHandle is a shared handle for encoding/decoding msgpack payloads
var msgpackHandle = &codec.MsgpackHandle{}
// command is a command method on the FSM.
type command func(buf []byte, index uint64) interface{}
// unboundCommand is a command method on the FSM, not yet bound to an FSM
// instance.
type unboundCommand func(c *FSM, buf []byte, index uint64) interface{}
// commands is a map from message type to unbound command.
var commands map[structs.MessageType]unboundCommand
// registerCommand registers a new command with the FSM, which should be done
// at package init() time.
func registerCommand(msg structs.MessageType, fn unboundCommand) {
if commands == nil {
commands = make(map[structs.MessageType]unboundCommand)
}
if commands[msg] != nil {
panic(fmt.Errorf("Message %d is already registered", msg))
}
commands[msg] = fn
}
// FSM implements a finite state machine that is used
// along with Raft to provide strong consistency. We implement
// this outside the Server to avoid exposing this outside the package.
type FSM struct {
logOutput io.Writer
logger *log.Logger
path string
// apply is built off the commands global and is used to route apply
// operations to their appropriate handlers.
apply map[structs.MessageType]command
// stateLock is only used to protect outside callers to State() from
// racing with Restore(), which is called by Raft (it puts in a totally
// new state store). Everything internal here is synchronized by the
// Raft side, so doesn't need to lock this.
stateLock sync.RWMutex
state *state.Store
gc *state.TombstoneGC
}
// New is used to construct a new FSM with a blank state.
func New(gc *state.TombstoneGC, logOutput io.Writer) (*FSM, error) {
stateNew, err := state.NewStateStore(gc)
if err != nil {
return nil, err
}
fsm := &FSM{
logOutput: logOutput,
logger: log.New(logOutput, "", log.LstdFlags),
apply: make(map[structs.MessageType]command),
state: stateNew,
gc: gc,
}
// Build out the apply dispatch table based on the registered commands.
for msg, fn := range commands {
thisFn := fn
fsm.apply[msg] = func(buf []byte, index uint64) interface{} {
return thisFn(fsm, buf, index)
}
}
return fsm, nil
}
// State is used to return a handle to the current state
func (c *FSM) State() *state.Store {
c.stateLock.RLock()
defer c.stateLock.RUnlock()
return c.state
}
func (c *FSM) Apply(log *raft.Log) interface{} {
buf := log.Data
msgType := structs.MessageType(buf[0])
// Check if this message type should be ignored when unknown. This is
// used so that new commands can be added with developer control if older
// versions can safely ignore the command, or if they should crash.
ignoreUnknown := false
if msgType&structs.IgnoreUnknownTypeFlag == structs.IgnoreUnknownTypeFlag {
msgType &= ^structs.IgnoreUnknownTypeFlag
ignoreUnknown = true
}
// Apply based on the dispatch table, if possible.
if fn := c.apply[msgType]; fn != nil {
return fn(buf[1:], log.Index)
}
// Otherwise, see if it's safe to ignore. If not, we have to panic so
// that we crash and our state doesn't diverge.
if ignoreUnknown {
c.logger.Printf("[WARN] consul.fsm: ignoring unknown message type (%d), upgrade to newer version", msgType)
return nil
}
panic(fmt.Errorf("failed to apply request: %#v", buf))
}
func (c *FSM) Snapshot() (raft.FSMSnapshot, error) {
defer func(start time.Time) {
c.logger.Printf("[INFO] consul.fsm: snapshot created in %v", time.Since(start))
}(time.Now())
return &snapshot{c.state.Snapshot()}, nil
}
// Restore streams in the snapshot and replaces the current state store with a
// new one based on the snapshot if all goes OK during the restore.
func (c *FSM) Restore(old io.ReadCloser) error {
defer old.Close()
// Create a new state store.
stateNew, err := state.NewStateStore(c.gc)
if err != nil {
return err
}
// Set up a new restore transaction
restore := stateNew.Restore()
defer restore.Abort()
// Create a decoder
dec := codec.NewDecoder(old, msgpackHandle)
// Read in the header
var header snapshotHeader
if err := dec.Decode(&header); err != nil {
return err
}
// Populate the new state
msgType := make([]byte, 1)
for {
// Read the message type
_, err := old.Read(msgType)
if err == io.EOF {
break
} else if err != nil {
return err
}
// Decode
msg := structs.MessageType(msgType[0])
if fn := restorers[msg]; fn != nil {
if err := fn(&header, restore, dec); err != nil {
return err
}
} else {
return fmt.Errorf("Unrecognized msg type %d", msg)
}
}
restore.Commit()
// External code might be calling State(), so we need to synchronize
// here to make sure we swap in the new state store atomically.
c.stateLock.Lock()
stateOld := c.state
c.state = stateNew
c.stateLock.Unlock()
// Signal that the old state store has been abandoned. This is required
// because we don't operate on it any more, we just throw it away, so
// blocking queries won't see any changes and need to be woken up.
stateOld.Abandon()
return nil
}

62
agent/consul/fsm/fsm_test.go Normal file
View File

@ -0,0 +1,62 @@
package fsm
import (
"bytes"
"os"
"testing"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/raft"
)
type MockSink struct {
*bytes.Buffer
cancel bool
}
func (m *MockSink) ID() string {
return "Mock"
}
func (m *MockSink) Cancel() error {
m.cancel = true
return nil
}
func (m *MockSink) Close() error {
return nil
}
func makeLog(buf []byte) *raft.Log {
return &raft.Log{
Index: 1,
Term: 1,
Type: raft.LogCommand,
Data: buf,
}
}
func TestFSM_IgnoreUnknown(t *testing.T) {
t.Parallel()
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
// Create a new reap request
type UnknownRequest struct {
Foo string
}
req := UnknownRequest{Foo: "bar"}
msgType := structs.IgnoreUnknownTypeFlag | 64
buf, err := structs.Encode(msgType, req)
if err != nil {
t.Fatalf("err: %v", err)
}
// Apply should work, even though not supported
resp := fsm.Apply(makeLog(buf))
if err, ok := resp.(error); ok {
t.Fatalf("resp: %v", err)
}
}

85
agent/consul/fsm/snapshot.go Normal file
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@ -0,0 +1,85 @@
package fsm
import (
"fmt"
"time"
"github.com/armon/go-metrics"
"github.com/hashicorp/consul/agent/consul/state"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/go-msgpack/codec"
"github.com/hashicorp/raft"
)
// snapshot is used to provide a snapshot of the current
// state in a way that can be accessed concurrently with operations
// that may modify the live state.
type snapshot struct {
state *state.Snapshot
}
// snapshotHeader is the first entry in our snapshot
type snapshotHeader struct {
// LastIndex is the last index that affects the data.
// This is used when we do the restore for watchers.
LastIndex uint64
}
// persister is a function used to help snapshot the FSM state.
type persister func(s *snapshot, sink raft.SnapshotSink, encoder *codec.Encoder) error
// persisters is a list of snapshot functions.
var persisters []persister
// registerPersister adds a new helper. This should be called at package
// init() time.
func registerPersister(fn persister) {
persisters = append(persisters, fn)
}
// restorer is a function used to load back a snapshot of the FSM state.
type restorer func(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error
// restorers is a map of restore functions by message type.
var restorers map[structs.MessageType]restorer
// registerRestorer adds a new helper. This should be called at package
// init() time.
func registerRestorer(msg structs.MessageType, fn restorer) {
if restorers == nil {
restorers = make(map[structs.MessageType]restorer)
}
if restorers[msg] != nil {
panic(fmt.Errorf("Message %d is already registered", msg))
}
restorers[msg] = fn
}
// Persist saves the FSM snapshot out to the given sink.
func (s *snapshot) Persist(sink raft.SnapshotSink) error {
defer metrics.MeasureSince([]string{"consul", "fsm", "persist"}, time.Now())
defer metrics.MeasureSince([]string{"fsm", "persist"}, time.Now())
// Write the header
header := snapshotHeader{
LastIndex: s.state.LastIndex(),
}
encoder := codec.NewEncoder(sink, msgpackHandle)
if err := encoder.Encode(&header); err != nil {
sink.Cancel()
return err
}
// Run all the persisters to write the FSM state.
for _, fn := range persisters {
if err := fn(s, sink, encoder); err != nil {
sink.Cancel()
return err
}
}
return nil
}
func (s *snapshot) Release() {
s.state.Close()
}

365
agent/consul/fsm/snapshot_oss.go Normal file
View File

@ -0,0 +1,365 @@
package fsm
import (
"github.com/hashicorp/consul/agent/consul/state"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/go-msgpack/codec"
"github.com/hashicorp/raft"
)
func init() {
registerPersister(persistOSS)
registerRestorer(structs.RegisterRequestType, restoreRegistration)
registerRestorer(structs.KVSRequestType, restoreKV)
registerRestorer(structs.TombstoneRequestType, restoreTombstone)
registerRestorer(structs.SessionRequestType, restoreSession)
registerRestorer(structs.ACLRequestType, restoreACL)
registerRestorer(structs.ACLBootstrapRequestType, restoreACLBootstrap)
registerRestorer(structs.CoordinateBatchUpdateType, restoreCoordinates)
registerRestorer(structs.PreparedQueryRequestType, restorePreparedQuery)
registerRestorer(structs.AutopilotRequestType, restoreAutopilot)
}
func persistOSS(s *snapshot, sink raft.SnapshotSink, encoder *codec.Encoder) error {
if err := s.persistNodes(sink, encoder); err != nil {
return err
}
if err := s.persistSessions(sink, encoder); err != nil {
return err
}
if err := s.persistACLs(sink, encoder); err != nil {
return err
}
if err := s.persistKVs(sink, encoder); err != nil {
return err
}
if err := s.persistTombstones(sink, encoder); err != nil {
return err
}
if err := s.persistPreparedQueries(sink, encoder); err != nil {
return err
}
if err := s.persistAutopilot(sink, encoder); err != nil {
return err
}
return nil
}
func (s *snapshot) persistNodes(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
// Get all the nodes
nodes, err := s.state.Nodes()
if err != nil {
return err
}
// Register each node
for node := nodes.Next(); node != nil; node = nodes.Next() {
n := node.(*structs.Node)
req := structs.RegisterRequest{
Node: n.Node,
Address: n.Address,
TaggedAddresses: n.TaggedAddresses,
}
// Register the node itself
if _, err := sink.Write([]byte{byte(structs.RegisterRequestType)}); err != nil {
return err
}
if err := encoder.Encode(&req); err != nil {
return err
}
// Register each service this node has
services, err := s.state.Services(n.Node)
if err != nil {
return err
}
for service := services.Next(); service != nil; service = services.Next() {
if _, err := sink.Write([]byte{byte(structs.RegisterRequestType)}); err != nil {
return err
}
req.Service = service.(*structs.ServiceNode).ToNodeService()
if err := encoder.Encode(&req); err != nil {
return err
}
}
// Register each check this node has
req.Service = nil
checks, err := s.state.Checks(n.Node)
if err != nil {
return err
}
for check := checks.Next(); check != nil; check = checks.Next() {
if _, err := sink.Write([]byte{byte(structs.RegisterRequestType)}); err != nil {
return err
}
req.Check = check.(*structs.HealthCheck)
if err := encoder.Encode(&req); err != nil {
return err
}
}
}
// Save the coordinates separately since they are not part of the
// register request interface. To avoid copying them out, we turn
// them into batches with a single coordinate each.
coords, err := s.state.Coordinates()
if err != nil {
return err
}
for coord := coords.Next(); coord != nil; coord = coords.Next() {
if _, err := sink.Write([]byte{byte(structs.CoordinateBatchUpdateType)}); err != nil {
return err
}
updates := structs.Coordinates{coord.(*structs.Coordinate)}
if err := encoder.Encode(&updates); err != nil {
return err
}
}
return nil
}
func (s *snapshot) persistSessions(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
sessions, err := s.state.Sessions()
if err != nil {
return err
}
for session := sessions.Next(); session != nil; session = sessions.Next() {
if _, err := sink.Write([]byte{byte(structs.SessionRequestType)}); err != nil {
return err
}
if err := encoder.Encode(session.(*structs.Session)); err != nil {
return err
}
}
return nil
}
func (s *snapshot) persistACLs(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
acls, err := s.state.ACLs()
if err != nil {
return err
}
for acl := acls.Next(); acl != nil; acl = acls.Next() {
if _, err := sink.Write([]byte{byte(structs.ACLRequestType)}); err != nil {
return err
}
if err := encoder.Encode(acl.(*structs.ACL)); err != nil {
return err
}
}
bs, err := s.state.ACLBootstrap()
if err != nil {
return err
}
if bs != nil {
if _, err := sink.Write([]byte{byte(structs.ACLBootstrapRequestType)}); err != nil {
return err
}
if err := encoder.Encode(bs); err != nil {
return err
}
}
return nil
}
func (s *snapshot) persistKVs(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
entries, err := s.state.KVs()
if err != nil {
return err
}
for entry := entries.Next(); entry != nil; entry = entries.Next() {
if _, err := sink.Write([]byte{byte(structs.KVSRequestType)}); err != nil {
return err
}
if err := encoder.Encode(entry.(*structs.DirEntry)); err != nil {
return err
}
}
return nil
}
func (s *snapshot) persistTombstones(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
stones, err := s.state.Tombstones()
if err != nil {
return err
}
for stone := stones.Next(); stone != nil; stone = stones.Next() {
if _, err := sink.Write([]byte{byte(structs.TombstoneRequestType)}); err != nil {
return err
}
// For historical reasons, these are serialized in the snapshots
// as KV entries. We want to keep the snapshot format compatible
// with pre-0.6 versions for now.
s := stone.(*state.Tombstone)
fake := &structs.DirEntry{
Key: s.Key,
RaftIndex: structs.RaftIndex{
ModifyIndex: s.Index,
},
}
if err := encoder.Encode(fake); err != nil {
return err
}
}
return nil
}
func (s *snapshot) persistPreparedQueries(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
queries, err := s.state.PreparedQueries()
if err != nil {
return err
}
for _, query := range queries {
if _, err := sink.Write([]byte{byte(structs.PreparedQueryRequestType)}); err != nil {
return err
}
if err := encoder.Encode(query); err != nil {
return err
}
}
return nil
}
func (s *snapshot) persistAutopilot(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
autopilot, err := s.state.Autopilot()
if err != nil {
return err
}
if autopilot == nil {
return nil
}
if _, err := sink.Write([]byte{byte(structs.AutopilotRequestType)}); err != nil {
return err
}
if err := encoder.Encode(autopilot); err != nil {
return err
}
return nil
}
func restoreRegistration(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
var req structs.RegisterRequest
if err := decoder.Decode(&req); err != nil {
return err
}
if err := restore.Registration(header.LastIndex, &req); err != nil {
return err
}
return nil
}
func restoreKV(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
var req structs.DirEntry
if err := decoder.Decode(&req); err != nil {
return err
}
if err := restore.KVS(&req); err != nil {
return err
}
return nil
}
func restoreTombstone(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
var req structs.DirEntry
if err := decoder.Decode(&req); err != nil {
return err
}
// For historical reasons, these are serialized in the
// snapshots as KV entries. We want to keep the snapshot
// format compatible with pre-0.6 versions for now.
stone := &state.Tombstone{
Key: req.Key,
Index: req.ModifyIndex,
}
if err := restore.Tombstone(stone); err != nil {
return err
}
return nil
}
func restoreSession(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
var req structs.Session
if err := decoder.Decode(&req); err != nil {
return err
}
if err := restore.Session(&req); err != nil {
return err
}
return nil
}
func restoreACL(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
var req structs.ACL
if err := decoder.Decode(&req); err != nil {
return err
}
if err := restore.ACL(&req); err != nil {
return err
}
return nil
}
func restoreACLBootstrap(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
var req structs.ACLBootstrap
if err := decoder.Decode(&req); err != nil {
return err
}
if err := restore.ACLBootstrap(&req); err != nil {
return err
}
return nil
}
func restoreCoordinates(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
var req structs.Coordinates
if err := decoder.Decode(&req); err != nil {
return err
}
if err := restore.Coordinates(header.LastIndex, req); err != nil {
return err
}
return nil
}
func restorePreparedQuery(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
var req structs.PreparedQuery
if err := decoder.Decode(&req); err != nil {
return err
}
if err := restore.PreparedQuery(&req); err != nil {
return err
}
return nil
}
func restoreAutopilot(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
var req structs.AutopilotConfig
if err := decoder.Decode(&req); err != nil {
return err
}
if err := restore.Autopilot(&req); err != nil {
return err
}
return nil
}

326
agent/consul/fsm/snapshot_oss_test.go Normal file
View File

@ -0,0 +1,326 @@
package fsm
import (
"bytes"
"os"
"reflect"
"testing"
"time"
"github.com/hashicorp/consul/agent/consul/state"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/lib"
"github.com/pascaldekloe/goe/verify"
)
func TestFSM_SnapshotRestore_OSS(t *testing.T) {
t.Parallel()
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
// Add some state
fsm.state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"})
fsm.state.EnsureNode(2, &structs.Node{Node: "baz", Address: "127.0.0.2", TaggedAddresses: map[string]string{"hello": "1.2.3.4"}})
fsm.state.EnsureService(3, "foo", &structs.NodeService{ID: "web", Service: "web", Tags: nil, Address: "127.0.0.1", Port: 80})
fsm.state.EnsureService(4, "foo", &structs.NodeService{ID: "db", Service: "db", Tags: []string{"primary"}, Address: "127.0.0.1", Port: 5000})
fsm.state.EnsureService(5, "baz", &structs.NodeService{ID: "web", Service: "web", Tags: nil, Address: "127.0.0.2", Port: 80})
fsm.state.EnsureService(6, "baz", &structs.NodeService{ID: "db", Service: "db", Tags: []string{"secondary"}, Address: "127.0.0.2", Port: 5000})
fsm.state.EnsureCheck(7, &structs.HealthCheck{
Node: "foo",
CheckID: "web",
Name: "web connectivity",
Status: api.HealthPassing,
ServiceID: "web",
})
fsm.state.KVSSet(8, &structs.DirEntry{
Key: "/test",
Value: []byte("foo"),
})
session := &structs.Session{ID: generateUUID(), Node: "foo"}
fsm.state.SessionCreate(9, session)
acl := &structs.ACL{ID: generateUUID(), Name: "User Token"}
fsm.state.ACLSet(10, acl)
if _, err := fsm.state.ACLBootstrapInit(10); err != nil {
t.Fatalf("err: %v", err)
}
fsm.state.KVSSet(11, &structs.DirEntry{
Key: "/remove",
Value: []byte("foo"),
})
fsm.state.KVSDelete(12, "/remove")
idx, _, err := fsm.state.KVSList(nil, "/remove")
if err != nil {
t.Fatalf("err: %s", err)
}
if idx != 12 {
t.Fatalf("bad index: %d", idx)
}
updates := structs.Coordinates{
&structs.Coordinate{
Node: "baz",
Coord: generateRandomCoordinate(),
},
&structs.Coordinate{
Node: "foo",
Coord: generateRandomCoordinate(),
},
}
if err := fsm.state.CoordinateBatchUpdate(13, updates); err != nil {
t.Fatalf("err: %s", err)
}
query := structs.PreparedQuery{
ID: generateUUID(),
Service: structs.ServiceQuery{
Service: "web",
},
RaftIndex: structs.RaftIndex{
CreateIndex: 14,
ModifyIndex: 14,
},
}
if err := fsm.state.PreparedQuerySet(14, &query); err != nil {
t.Fatalf("err: %s", err)
}
autopilotConf := &structs.AutopilotConfig{
CleanupDeadServers: true,
LastContactThreshold: 100 * time.Millisecond,
MaxTrailingLogs: 222,
}
if err := fsm.state.AutopilotSetConfig(15, autopilotConf); err != nil {
t.Fatalf("err: %s", err)
}
// Snapshot
snap, err := fsm.Snapshot()
if err != nil {
t.Fatalf("err: %v", err)
}
defer snap.Release()
// Persist
buf := bytes.NewBuffer(nil)
sink := &MockSink{buf, false}
if err := snap.Persist(sink); err != nil {
t.Fatalf("err: %v", err)
}
// Try to restore on a new FSM
fsm2, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
// Do a restore
if err := fsm2.Restore(sink); err != nil {
t.Fatalf("err: %v", err)
}
// Verify the contents
_, nodes, err := fsm2.state.Nodes(nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if len(nodes) != 2 {
t.Fatalf("bad: %v", nodes)
}
if nodes[0].Node != "baz" ||
nodes[0].Address != "127.0.0.2" ||
len(nodes[0].TaggedAddresses) != 1 ||
nodes[0].TaggedAddresses["hello"] != "1.2.3.4" {
t.Fatalf("bad: %v", nodes[0])
}
if nodes[1].Node != "foo" ||
nodes[1].Address != "127.0.0.1" ||
len(nodes[1].TaggedAddresses) != 0 {
t.Fatalf("bad: %v", nodes[1])
}
_, fooSrv, err := fsm2.state.NodeServices(nil, "foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if len(fooSrv.Services) != 2 {
t.Fatalf("Bad: %v", fooSrv)
}
if !lib.StrContains(fooSrv.Services["db"].Tags, "primary") {
t.Fatalf("Bad: %v", fooSrv)
}
if fooSrv.Services["db"].Port != 5000 {
t.Fatalf("Bad: %v", fooSrv)
}
_, checks, err := fsm2.state.NodeChecks(nil, "foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if len(checks) != 1 {
t.Fatalf("Bad: %v", checks)
}
// Verify key is set
_, d, err := fsm2.state.KVSGet(nil, "/test")
if err != nil {
t.Fatalf("err: %v", err)
}
if string(d.Value) != "foo" {
t.Fatalf("bad: %v", d)
}
// Verify session is restored
idx, s, err := fsm2.state.SessionGet(nil, session.ID)
if err != nil {
t.Fatalf("err: %v", err)
}
if s.Node != "foo" {
t.Fatalf("bad: %v", s)
}
if idx <= 1 {
t.Fatalf("bad index: %d", idx)
}
// Verify ACL is restored
_, a, err := fsm2.state.ACLGet(nil, acl.ID)
if err != nil {
t.Fatalf("err: %v", err)
}
if a.Name != "User Token" {
t.Fatalf("bad: %v", a)
}
if a.ModifyIndex <= 1 {
t.Fatalf("bad index: %d", idx)
}
gotB, err := fsm2.state.ACLGetBootstrap()
if err != nil {
t.Fatalf("err: %v", err)
}
wantB := &structs.ACLBootstrap{
AllowBootstrap: true,
RaftIndex: structs.RaftIndex{
CreateIndex: 10,
ModifyIndex: 10,
},
}
verify.Values(t, "", gotB, wantB)
// Verify tombstones are restored
func() {
snap := fsm2.state.Snapshot()
defer snap.Close()
stones, err := snap.Tombstones()
if err != nil {
t.Fatalf("err: %s", err)
}
stone := stones.Next().(*state.Tombstone)
if stone == nil {
t.Fatalf("missing tombstone")
}
if stone.Key != "/remove" || stone.Index != 12 {
t.Fatalf("bad: %v", stone)
}
if stones.Next() != nil {
t.Fatalf("unexpected extra tombstones")
}
}()
// Verify coordinates are restored
_, coords, err := fsm2.state.Coordinates(nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(coords, updates) {
t.Fatalf("bad: %#v", coords)
}
// Verify queries are restored.
_, queries, err := fsm2.state.PreparedQueryList(nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if len(queries) != 1 {
t.Fatalf("bad: %#v", queries)
}
if !reflect.DeepEqual(queries[0], &query) {
t.Fatalf("bad: %#v", queries[0])
}
// Verify autopilot config is restored.
_, restoredConf, err := fsm2.state.AutopilotConfig()
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(restoredConf, autopilotConf) {
t.Fatalf("bad: %#v, %#v", restoredConf, autopilotConf)
}
// Snapshot
snap, err = fsm2.Snapshot()
if err != nil {
t.Fatalf("err: %v", err)
}
defer snap.Release()
// Persist
buf = bytes.NewBuffer(nil)
sink = &MockSink{buf, false}
if err := snap.Persist(sink); err != nil {
t.Fatalf("err: %v", err)
}
// Try to restore on the old FSM and make sure it abandons the old state
// store.
abandonCh := fsm.state.AbandonCh()
if err := fsm.Restore(sink); err != nil {
t.Fatalf("err: %v", err)
}
select {
case <-abandonCh:
default:
t.Fatalf("bad")
}
}
func TestFSM_BadRestore_OSS(t *testing.T) {
t.Parallel()
// Create an FSM with some state.
fsm, err := New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}
fsm.state.EnsureNode(1, &structs.Node{Node: "foo", Address: "127.0.0.1"})
abandonCh := fsm.state.AbandonCh()
// Do a bad restore.
buf := bytes.NewBuffer([]byte("bad snapshot"))
sink := &MockSink{buf, false}
if err := fsm.Restore(sink); err == nil {
t.Fatalf("err: %v", err)
}
// Verify the contents didn't get corrupted.
_, nodes, err := fsm.state.Nodes(nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if len(nodes) != 1 {
t.Fatalf("bad: %v", nodes)
}
if nodes[0].Node != "foo" ||
nodes[0].Address != "127.0.0.1" ||
len(nodes[0].TaggedAddresses) != 0 {
t.Fatalf("bad: %v", nodes[0])
}
// Verify the old state store didn't get abandoned.
select {
case <-abandonCh:
t.Fatalf("bad")
default:
}
}

13
agent/consul/issue_test.go
View File

@ -5,14 +5,25 @@ import (
"reflect"
"testing"
consulfsm "github.com/hashicorp/consul/agent/consul/fsm"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/raft"
)
func makeLog(buf []byte) *raft.Log {
return &raft.Log{
Index: 1,
Term: 1,
Type: raft.LogCommand,
Data: buf,
}
}
// Testing for GH-300 and GH-279
func TestHealthCheckRace(t *testing.T) {
t.Parallel()
fsm, err := NewFSM(nil, os.Stderr)
fsm, err := consulfsm.New(nil, os.Stderr)
if err != nil {
t.Fatalf("err: %v", err)
}

18
agent/consul/rpc_test.go
View File

@ -77,6 +77,24 @@ func TestRPC_NoLeader_Retry(t *testing.T) {
}
}
type MockSink struct {
*bytes.Buffer
cancel bool
}
func (m *MockSink) ID() string {
return "Mock"
}
func (m *MockSink) Cancel() error {
m.cancel = true
return nil
}
func (m *MockSink) Close() error {
return nil
}
func TestRPC_blockingQuery(t *testing.T) {
t.Parallel()
dir, s := testServer(t)

0
agent/consul/segment_stub.go → agent/consul/segment_oss.go
View File

65
agent/consul/server.go
View File

@ -18,6 +18,7 @@ import (
"time"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/agent/consul/fsm"
"github.com/hashicorp/consul/agent/consul/state"
"github.com/hashicorp/consul/agent/metadata"
"github.com/hashicorp/consul/agent/pool"
@ -112,9 +113,6 @@ type Server struct {
// Connection pool to other consul servers
connPool *pool.ConnPool
// Endpoints holds our RPC endpoints
endpoints endpoints
// eventChLAN is used to receive events from the
// serf cluster in the datacenter
eventChLAN chan serf.Event
@ -125,7 +123,7 @@ type Server struct {
// fsm is the state machine used with Raft to provide
// strong consistency.
fsm *consulFSM
fsm *fsm.FSM
// Logger uses the provided LogOutput
logger *log.Logger
@ -218,21 +216,6 @@ type Server struct {
shutdownLock sync.Mutex
}
// Holds the RPC endpoints
type endpoints struct {
ACL *ACL
Catalog *Catalog
Coordinate *Coordinate
Health *Health
Internal *Internal
KVS *KVS
Operator *Operator
PreparedQuery *PreparedQuery
Session *Session
Status *Status
Txn *Txn
}
func NewServer(config *Config) (*Server, error) {
return NewServerLogger(config, nil, new(token.Store))
}
@ -465,7 +448,7 @@ func (s *Server) setupRaft() error {
// Create the FSM.
var err error
s.fsm, err = NewFSM(s.tombstoneGC, s.config.LogOutput)
s.fsm, err = fsm.New(s.tombstoneGC, s.config.LogOutput)
if err != nil {
return err
}
@ -572,7 +555,7 @@ func (s *Server) setupRaft() error {
return fmt.Errorf("recovery failed to parse peers.json: %v", err)
}
tmpFsm, err := NewFSM(s.tombstoneGC, s.config.LogOutput)
tmpFsm, err := fsm.New(s.tombstoneGC, s.config.LogOutput)
if err != nil {
return fmt.Errorf("recovery failed to make temp FSM: %v", err)
}
@ -624,33 +607,23 @@ func (s *Server) setupRaft() error {
return nil
}
// endpointFactory is a function that returns an RPC endpoint bound to the given
// server.
type factory func(s *Server) interface{}
// endpoints is a list of registered RPC endpoint factories.
var endpoints []factory
// registerEndpoint registers a new RPC endpoint factory.
func registerEndpoint(fn factory) {
endpoints = append(endpoints, fn)
}
// setupRPC is used to setup the RPC listener
func (s *Server) setupRPC(tlsWrap tlsutil.DCWrapper) error {
// Create endpoints
s.endpoints.ACL = &ACL{s}
s.endpoints.Catalog = &Catalog{s}
s.endpoints.Coordinate = NewCoordinate(s)
s.endpoints.Health = &Health{s}
s.endpoints.Internal = &Internal{s}
s.endpoints.KVS = &KVS{s}
s.endpoints.Operator = &Operator{s}
s.endpoints.PreparedQuery = &PreparedQuery{s}
s.endpoints.Session = &Session{s}
s.endpoints.Status = &Status{s}
s.endpoints.Txn = &Txn{s}
// Register the handlers
s.rpcServer.Register(s.endpoints.ACL)
s.rpcServer.Register(s.endpoints.Catalog)
s.rpcServer.Register(s.endpoints.Coordinate)
s.rpcServer.Register(s.endpoints.Health)
s.rpcServer.Register(s.endpoints.Internal)
s.rpcServer.Register(s.endpoints.KVS)
s.rpcServer.Register(s.endpoints.Operator)
s.rpcServer.Register(s.endpoints.PreparedQuery)
s.rpcServer.Register(s.endpoints.Session)
s.rpcServer.Register(s.endpoints.Status)
s.rpcServer.Register(s.endpoints.Txn)
for _, fn := range endpoints {
s.rpcServer.Register(fn(s))
}
ln, err := net.ListenTCP("tcp", s.config.RPCAddr)
if err != nil {

15
agent/consul/server_oss.go Normal file
View File

@ -0,0 +1,15 @@
package consul
func init() {
registerEndpoint(func(s *Server) interface{} { return &ACL{s} })
registerEndpoint(func(s *Server) interface{} { return &Catalog{s} })
registerEndpoint(func(s *Server) interface{} { return NewCoordinate(s) })
registerEndpoint(func(s *Server) interface{} { return &Health{s} })
registerEndpoint(func(s *Server) interface{} { return &Internal{s} })
registerEndpoint(func(s *Server) interface{} { return &KVS{s} })
registerEndpoint(func(s *Server) interface{} { return &Operator{s} })
registerEndpoint(func(s *Server) interface{} { return &PreparedQuery{s} })
registerEndpoint(func(s *Server) interface{} { return &Session{s} })
registerEndpoint(func(s *Server) interface{} { return &Status{s} })
registerEndpoint(func(s *Server) interface{} { return &Txn{s} })
}

10
agent/consul/session_ttl_test.go
View File

@ -1,6 +1,7 @@
package consul
import (
"fmt"
"os"
"strings"
"testing"
@ -9,9 +10,18 @@ import (
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/testrpc"
"github.com/hashicorp/consul/testutil/retry"
"github.com/hashicorp/go-uuid"
"github.com/hashicorp/net-rpc-msgpackrpc"
)
func generateUUID() (ret string) {
var err error
if ret, err = uuid.GenerateUUID(); err != nil {
panic(fmt.Sprintf("Unable to generate a UUID, %v", err))
}
return ret
}
func TestInitializeSessionTimers(t *testing.T) {
t.Parallel()
dir1, s1 := testServer(t)

5
agent/consul/state/acl.go
View File

@ -44,6 +44,11 @@ func aclsBootstrapTableSchema() *memdb.TableSchema {
}
}
func init() {
registerSchema(aclsTableSchema)
registerSchema(aclsBootstrapTableSchema)
}
// ACLs is used to pull all the ACLs from the snapshot.
func (s *Snapshot) ACLs() (memdb.ResultIterator, error) {
iter, err := s.tx.Get("acls", "id")

22
agent/consul/state/autopilot.go
View File

@ -7,6 +7,28 @@ import (
"github.com/hashicorp/go-memdb"
)
// autopilotConfigTableSchema returns a new table schema used for storing
// the autopilot configuration
func autopilotConfigTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "autopilot-config",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: true,
Unique: true,
Indexer: &memdb.ConditionalIndex{
Conditional: func(obj interface{}) (bool, error) { return true, nil },
},
},
},
}
}
func init() {
registerSchema(autopilotConfigTableSchema)
}
// Autopilot is used to pull the autopilot config from the snapshot.
func (s *Snapshot) Autopilot() (*structs.AutopilotConfig, error) {
c, err := s.tx.First("autopilot-config", "id")

175
agent/consul/state/catalog.go
View File

@ -10,6 +10,181 @@ import (
"github.com/hashicorp/go-memdb"
)
// nodesTableSchema returns a new table schema used for storing node
// information.
func nodesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "nodes",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
"uuid": &memdb.IndexSchema{
Name: "uuid",
AllowMissing: true,
Unique: true,
Indexer: &memdb.UUIDFieldIndex{
Field: "ID",
},
},
"meta": &memdb.IndexSchema{
Name: "meta",
AllowMissing: true,
Unique: false,
Indexer: &memdb.StringMapFieldIndex{
Field: "Meta",
Lowercase: false,
},
},
},
}
}
// servicesTableSchema returns a new table schema used to store information
// about services.
func servicesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "services",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "ServiceID",
Lowercase: true,
},
},
},
},
"node": &memdb.IndexSchema{
Name: "node",
AllowMissing: false,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
"service": &memdb.IndexSchema{
Name: "service",
AllowMissing: true,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "ServiceName",
Lowercase: true,
},
},
},
}
}
// checksTableSchema returns a new table schema used for storing and indexing
// health check information. Health checks have a number of different attributes
// we want to filter by, so this table is a bit more complex.
func checksTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "checks",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "CheckID",
Lowercase: true,
},
},
},
},
"status": &memdb.IndexSchema{
Name: "status",
AllowMissing: false,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Status",
Lowercase: false,
},
},
"service": &memdb.IndexSchema{
Name: "service",
AllowMissing: true,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "ServiceName",
Lowercase: true,
},
},
"node": &memdb.IndexSchema{
Name: "node",
AllowMissing: true,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
"node_service_check": &memdb.IndexSchema{
Name: "node_service_check",
AllowMissing: true,
Unique: false,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.FieldSetIndex{
Field: "ServiceID",
},
},
},
},
"node_service": &memdb.IndexSchema{
Name: "node_service",
AllowMissing: true,
Unique: false,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "ServiceID",
Lowercase: true,
},
},
},
},
},
}
}
func init() {
registerSchema(nodesTableSchema)
registerSchema(servicesTableSchema)
registerSchema(checksTableSchema)
}
const (
// minUUIDLookupLen is used as a minimum length of a node name required before
// we test to see if the name is actually a UUID and perform an ID-based node

43
agent/consul/state/coordinate.go
View File

@ -8,6 +8,49 @@ import (
"github.com/hashicorp/go-memdb"
)
// coordinatesTableSchema returns a new table schema used for storing
// network coordinates.
func coordinatesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "coordinates",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.CompoundIndex{
// AllowMissing is required since we allow
// Segment to be an empty string.
AllowMissing: true,
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "Segment",
Lowercase: true,
},
},
},
},
"node": &memdb.IndexSchema{
Name: "node",
AllowMissing: false,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
},
}
}
func init() {
registerSchema(coordinatesTableSchema)
}
// Coordinates is used to pull all the coordinates from the snapshot.
func (s *Snapshot) Coordinates() (memdb.ResultIterator, error) {
iter, err := s.tx.Get("coordinates", "id")

51
agent/consul/state/kvs.go
View File

@ -9,6 +9,57 @@ import (
"github.com/hashicorp/go-memdb"
)
// kvsTableSchema returns a new table schema used for storing key/value data for
// Consul's kv store.
func kvsTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "kvs",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.StringFieldIndex{
Field: "Key",
Lowercase: false,
},
},
"session": &memdb.IndexSchema{
Name: "session",
AllowMissing: true,
Unique: false,
Indexer: &memdb.UUIDFieldIndex{
Field: "Session",
},
},
},
}
}
// tombstonesTableSchema returns a new table schema used for storing tombstones
// during KV delete operations to prevent the index from sliding backwards.
func tombstonesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "tombstones",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.StringFieldIndex{
Field: "Key",
Lowercase: false,
},
},
},
}
}
func init() {
registerSchema(kvsTableSchema)
registerSchema(tombstonesTableSchema)
}
// KVs is used to pull the full list of KVS entries for use during snapshots.
func (s *Snapshot) KVs() (memdb.ResultIterator, error) {
iter, err := s.tx.Get("kvs", "id_prefix")

45
agent/consul/state/prepared_query.go
View File

@ -9,6 +9,51 @@ import (
"github.com/hashicorp/go-memdb"
)
// preparedQueriesTableSchema returns a new table schema used for storing
// prepared queries.
func preparedQueriesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "prepared-queries",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.UUIDFieldIndex{
Field: "ID",
},
},
"name": &memdb.IndexSchema{
Name: "name",
AllowMissing: true,
Unique: true,
Indexer: &memdb.StringFieldIndex{
Field: "Name",
Lowercase: true,
},
},
"template": &memdb.IndexSchema{
Name: "template",
AllowMissing: true,
Unique: true,
Indexer: &PreparedQueryIndex{},
},
"session": &memdb.IndexSchema{
Name: "session",
AllowMissing: true,
Unique: false,
Indexer: &memdb.UUIDFieldIndex{
Field: "Session",
},
},
},
}
}
func init() {
registerSchema(preparedQueriesTableSchema)
}
// validUUID is used to check if a given string looks like a UUID
var validUUID = regexp.MustCompile(`(?i)^[\da-f]{8}-[\da-f]{4}-[\da-f]{4}-[\da-f]{4}-[\da-f]{12}$`)

427
agent/consul/state/schema.go
View File

@ -10,6 +10,15 @@ import (
// new memdb schema structs for constructing an in-memory db.
type schemaFn func() *memdb.TableSchema
// schemas is used to register schemas with the state store.
var schemas []schemaFn
// registerSchema registers a new schema with the state store. This should
// get called at package init() time.
func registerSchema(fn schemaFn) {
schemas = append(schemas, fn)
}
// stateStoreSchema is used to return the combined schema for
// the state store.
func stateStoreSchema() *memdb.DBSchema {
@ -18,23 +27,6 @@ func stateStoreSchema() *memdb.DBSchema {
Tables: make(map[string]*memdb.TableSchema),
}
// Collect the needed schemas
schemas := []schemaFn{
indexTableSchema,
nodesTableSchema,
servicesTableSchema,
checksTableSchema,
kvsTableSchema,
tombstonesTableSchema,
sessionsTableSchema,
sessionChecksTableSchema,
aclsTableSchema,
aclsBootstrapTableSchema,
coordinatesTableSchema,
preparedQueriesTableSchema,
autopilotConfigTableSchema,
}
// Add the tables to the root schema
for _, fn := range schemas {
schema := fn()
@ -46,8 +38,8 @@ func stateStoreSchema() *memdb.DBSchema {
return db
}
// indexTableSchema returns a new table schema used for
// tracking various indexes for the Raft log.
// indexTableSchema returns a new table schema used for tracking various indexes
// for the Raft log.
func indexTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "index",
@ -65,399 +57,6 @@ func indexTableSchema() *memdb.TableSchema {
}
}
// nodesTableSchema returns a new table schema used for
// storing node information.
func nodesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "nodes",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
"uuid": &memdb.IndexSchema{
Name: "uuid",
AllowMissing: true,
Unique: true,
Indexer: &memdb.UUIDFieldIndex{
Field: "ID",
},
},
"meta": &memdb.IndexSchema{
Name: "meta",
AllowMissing: true,
Unique: false,
Indexer: &memdb.StringMapFieldIndex{
Field: "Meta",
Lowercase: false,
},
},
},
}
}
// servicesTableSchema returns a new TableSchema used to
// store information about services.
func servicesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "services",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "ServiceID",
Lowercase: true,
},
},
},
},
"node": &memdb.IndexSchema{
Name: "node",
AllowMissing: false,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
"service": &memdb.IndexSchema{
Name: "service",
AllowMissing: true,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "ServiceName",
Lowercase: true,
},
},
},
}
}
// checksTableSchema returns a new table schema used for
// storing and indexing health check information. Health
// checks have a number of different attributes we want to
// filter by, so this table is a bit more complex.
func checksTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "checks",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "CheckID",
Lowercase: true,
},
},
},
},
"status": &memdb.IndexSchema{
Name: "status",
AllowMissing: false,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Status",
Lowercase: false,
},
},
"service": &memdb.IndexSchema{
Name: "service",
AllowMissing: true,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "ServiceName",
Lowercase: true,
},
},
"node": &memdb.IndexSchema{
Name: "node",
AllowMissing: true,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
"node_service_check": &memdb.IndexSchema{
Name: "node_service_check",
AllowMissing: true,
Unique: false,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.FieldSetIndex{
Field: "ServiceID",
},
},
},
},
"node_service": &memdb.IndexSchema{
Name: "node_service",
AllowMissing: true,
Unique: false,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "ServiceID",
Lowercase: true,
},
},
},
},
},
}
}
// kvsTableSchema returns a new table schema used for storing
// key/value data from consul's kv store.
func kvsTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "kvs",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.StringFieldIndex{
Field: "Key",
Lowercase: false,
},
},
"session": &memdb.IndexSchema{
Name: "session",
AllowMissing: true,
Unique: false,
Indexer: &memdb.UUIDFieldIndex{
Field: "Session",
},
},
},
}
}
// tombstonesTableSchema returns a new table schema used for
// storing tombstones during KV delete operations to prevent
// the index from sliding backwards.
func tombstonesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "tombstones",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.StringFieldIndex{
Field: "Key",
Lowercase: false,
},
},
},
}
}
// sessionsTableSchema returns a new TableSchema used for
// storing session information.
func sessionsTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "sessions",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.UUIDFieldIndex{
Field: "ID",
},
},
"node": &memdb.IndexSchema{
Name: "node",
AllowMissing: false,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
},
}
}
// sessionChecksTableSchema returns a new table schema used
// for storing session checks.
func sessionChecksTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "session_checks",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "CheckID",
Lowercase: true,
},
&memdb.UUIDFieldIndex{
Field: "Session",
},
},
},
},
"node_check": &memdb.IndexSchema{
Name: "node_check",
AllowMissing: false,
Unique: false,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "CheckID",
Lowercase: true,
},
},
},
},
"session": &memdb.IndexSchema{
Name: "session",
AllowMissing: false,
Unique: false,
Indexer: &memdb.UUIDFieldIndex{
Field: "Session",
},
},
},
}
}
// coordinatesTableSchema returns a new table schema used for storing
// network coordinates.
func coordinatesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "coordinates",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.CompoundIndex{
// AllowMissing is required since we allow
// Segment to be an empty string.
AllowMissing: true,
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "Segment",
Lowercase: true,
},
},
},
},
"node": &memdb.IndexSchema{
Name: "node",
AllowMissing: false,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
},
}
}
// preparedQueriesTableSchema returns a new table schema used for storing
// prepared queries.
func preparedQueriesTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "prepared-queries",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.UUIDFieldIndex{
Field: "ID",
},
},
"name": &memdb.IndexSchema{
Name: "name",
AllowMissing: true,
Unique: true,
Indexer: &memdb.StringFieldIndex{
Field: "Name",
Lowercase: true,
},
},
"template": &memdb.IndexSchema{
Name: "template",
AllowMissing: true,
Unique: true,
Indexer: &PreparedQueryIndex{},
},
"session": &memdb.IndexSchema{
Name: "session",
AllowMissing: true,
Unique: false,
Indexer: &memdb.UUIDFieldIndex{
Field: "Session",
},
},
},
}
}
// autopilotConfigTableSchema returns a new table schema used for storing
// the autopilot configuration
func autopilotConfigTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "autopilot-config",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: true,
Unique: true,
Indexer: &memdb.ConditionalIndex{
Conditional: func(obj interface{}) (bool, error) { return true, nil },
},
},
},
}
func init() {
registerSchema(indexTableSchema)
}

87
agent/consul/state/session.go
View File

@ -9,6 +9,93 @@ import (
"github.com/hashicorp/go-memdb"
)
// sessionsTableSchema returns a new table schema used for storing session
// information.
func sessionsTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "sessions",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.UUIDFieldIndex{
Field: "ID",
},
},
"node": &memdb.IndexSchema{
Name: "node",
AllowMissing: false,
Unique: false,
Indexer: &memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
},
},
}
}
// sessionChecksTableSchema returns a new table schema used for storing session
// checks.
func sessionChecksTableSchema() *memdb.TableSchema {
return &memdb.TableSchema{
Name: "session_checks",
Indexes: map[string]*memdb.IndexSchema{
"id": &memdb.IndexSchema{
Name: "id",
AllowMissing: false,
Unique: true,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "CheckID",
Lowercase: true,
},
&memdb.UUIDFieldIndex{
Field: "Session",
},
},
},
},
"node_check": &memdb.IndexSchema{
Name: "node_check",
AllowMissing: false,
Unique: false,
Indexer: &memdb.CompoundIndex{
Indexes: []memdb.Indexer{
&memdb.StringFieldIndex{
Field: "Node",
Lowercase: true,
},
&memdb.StringFieldIndex{
Field: "CheckID",
Lowercase: true,
},
},
},
},
"session": &memdb.IndexSchema{
Name: "session",
AllowMissing: false,
Unique: false,
Indexer: &memdb.UUIDFieldIndex{
Field: "Session",
},
},
},
}
}
func init() {
registerSchema(sessionsTableSchema)
registerSchema(sessionChecksTableSchema)
}
// Sessions is used to pull the full list of sessions for use during snapshots.
func (s *Snapshot) Sessions() (memdb.ResultIterator, error) {
iter, err := s.tx.Get("sessions", "id")

24
agent/coordinate_endpoint.go
View File

@ -9,12 +9,16 @@ import (
"github.com/hashicorp/consul/agent/structs"
)
// coordinateDisabled handles all the endpoints when coordinates are not enabled,
// returning an error message.
func coordinateDisabled(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
// checkCoordinateDisabled will return a standard response if coordinates are
// disabled. This returns true if they are disabled and we should not continue.
func (s *HTTPServer) checkCoordinateDisabled(resp http.ResponseWriter, req *http.Request) bool {
if !s.agent.config.DisableCoordinates {
return false
}
resp.WriteHeader(http.StatusUnauthorized)
fmt.Fprint(resp, "Coordinate support disabled")
return nil, nil
return true
}
// sorter wraps a coordinate list and implements the sort.Interface to sort by
@ -41,6 +45,9 @@ func (s *sorter) Less(i, j int) bool {
// CoordinateDatacenters returns the WAN nodes in each datacenter, along with
// raw network coordinates.
func (s *HTTPServer) CoordinateDatacenters(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkCoordinateDisabled(resp, req) {
return nil, nil
}
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
@ -70,6 +77,9 @@ func (s *HTTPServer) CoordinateDatacenters(resp http.ResponseWriter, req *http.R
// CoordinateNodes returns the LAN nodes in the given datacenter, along with
// raw network coordinates.
func (s *HTTPServer) CoordinateNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkCoordinateDisabled(resp, req) {
return nil, nil
}
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
@ -92,6 +102,9 @@ func (s *HTTPServer) CoordinateNodes(resp http.ResponseWriter, req *http.Request
// CoordinateNode returns the LAN node in the given datacenter, along with
// raw network coordinates.
func (s *HTTPServer) CoordinateNode(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkCoordinateDisabled(resp, req) {
return nil, nil
}
if req.Method != "GET" {
return nil, MethodNotAllowedError{req.Method, []string{"GET"}}
}
@ -141,6 +154,9 @@ func filterCoordinates(req *http.Request, in structs.Coordinates) structs.Coordi
// CoordinateUpdate inserts or updates the LAN coordinate of a node.
func (s *HTTPServer) CoordinateUpdate(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
if s.checkCoordinateDisabled(resp, req) {
return nil, nil
}
if req.Method != "PUT" {
return nil, MethodNotAllowedError{req.Method, []string{"PUT"}}
}

36
agent/coordinate_endpoint_test.go
View File

@ -1,8 +1,10 @@
package agent
import (
"fmt"
"net/http"
"net/http/httptest"
"strings"
"testing"
"time"
@ -10,6 +12,40 @@ import (
"github.com/hashicorp/serf/coordinate"
)
func TestCoordinate_Disabled_Response(t *testing.T) {
t.Parallel()
a := NewTestAgent(t.Name(), `
disable_coordinates = true
`)
defer a.Shutdown()
tests := []func(resp http.ResponseWriter, req *http.Request) (interface{}, error){
a.srv.CoordinateDatacenters,
a.srv.CoordinateNodes,
a.srv.CoordinateNode,
a.srv.CoordinateUpdate,
}
for i, tt := range tests {
t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
req, _ := http.NewRequest("PUT", "/should/not/care", nil)
resp := httptest.NewRecorder()
obj, err := tt(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
if obj != nil {
t.Fatalf("bad: %#v", obj)
}
if got, want := resp.Code, http.StatusUnauthorized; got != want {
t.Fatalf("got %d want %d", got, want)
}
if !strings.Contains(resp.Body.String(), "Coordinate support disabled") {
t.Fatalf("bad: %#v", resp)
}
})
}
}
func TestCoordinate_Datacenters(t *testing.T) {
t.Parallel()
a := NewTestAgent(t.Name(), "")

120
agent/http.go
View File

@ -39,6 +39,29 @@ type HTTPServer struct {
proto string
}
// endpoint is a Consul-specific HTTP handler that takes the usual arguments in
// but returns a response object and error, both of which are handled in a
// common manner by Consul's HTTP server.
type endpoint func(resp http.ResponseWriter, req *http.Request) (interface{}, error)
// unboundEndpoint is an endpoint method on a server.
type unboundEndpoint func(s *HTTPServer, resp http.ResponseWriter, req *http.Request) (interface{}, error)
// endpoints is a map from URL pattern to unbound endpoint.
var endpoints map[string]unboundEndpoint
// registerEndpoint registers a new endpoint, which should be done at package
// init() time.
func registerEndpoint(pattern string, fn unboundEndpoint) {
if endpoints == nil {
endpoints = make(map[string]unboundEndpoint)
}
if endpoints[pattern] != nil {
panic(fmt.Errorf("Pattern %q is already registered", pattern))
}
endpoints[pattern] = fn
}
// handler is used to attach our handlers to the mux
func (s *HTTPServer) handler(enableDebug bool) http.Handler {
mux := http.NewServeMux()
@ -75,96 +98,13 @@ func (s *HTTPServer) handler(enableDebug bool) http.Handler {
}
mux.HandleFunc("/", s.Index)
// API V1.
if s.agent.config.ACLDatacenter != "" {
handleFuncMetrics("/v1/acl/bootstrap", s.wrap(s.ACLBootstrap))
handleFuncMetrics("/v1/acl/create", s.wrap(s.ACLCreate))
handleFuncMetrics("/v1/acl/update", s.wrap(s.ACLUpdate))
handleFuncMetrics("/v1/acl/destroy/", s.wrap(s.ACLDestroy))
handleFuncMetrics("/v1/acl/info/", s.wrap(s.ACLGet))
handleFuncMetrics("/v1/acl/clone/", s.wrap(s.ACLClone))
handleFuncMetrics("/v1/acl/list", s.wrap(s.ACLList))
handleFuncMetrics("/v1/acl/replication", s.wrap(s.ACLReplicationStatus))
handleFuncMetrics("/v1/agent/token/", s.wrap(s.AgentToken))
} else {
handleFuncMetrics("/v1/acl/bootstrap", s.wrap(ACLDisabled))
handleFuncMetrics("/v1/acl/create", s.wrap(ACLDisabled))
handleFuncMetrics("/v1/acl/update", s.wrap(ACLDisabled))
handleFuncMetrics("/v1/acl/destroy/", s.wrap(ACLDisabled))
handleFuncMetrics("/v1/acl/info/", s.wrap(ACLDisabled))
handleFuncMetrics("/v1/acl/clone/", s.wrap(ACLDisabled))
handleFuncMetrics("/v1/acl/list", s.wrap(ACLDisabled))
handleFuncMetrics("/v1/acl/replication", s.wrap(ACLDisabled))
handleFuncMetrics("/v1/agent/token/", s.wrap(ACLDisabled))
for pattern, fn := range endpoints {
thisFn := fn
bound := func(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
return thisFn(s, resp, req)
}
handleFuncMetrics(pattern, s.wrap(bound))
}
handleFuncMetrics("/v1/agent/self", s.wrap(s.AgentSelf))
handleFuncMetrics("/v1/agent/maintenance", s.wrap(s.AgentNodeMaintenance))
handleFuncMetrics("/v1/agent/reload", s.wrap(s.AgentReload))
handleFuncMetrics("/v1/agent/monitor", s.wrap(s.AgentMonitor))
handleFuncMetrics("/v1/agent/metrics", s.wrap(s.AgentMetrics))
handleFuncMetrics("/v1/agent/services", s.wrap(s.AgentServices))
handleFuncMetrics("/v1/agent/checks", s.wrap(s.AgentChecks))
handleFuncMetrics("/v1/agent/members", s.wrap(s.AgentMembers))
handleFuncMetrics("/v1/agent/join/", s.wrap(s.AgentJoin))
handleFuncMetrics("/v1/agent/leave", s.wrap(s.AgentLeave))
handleFuncMetrics("/v1/agent/force-leave/", s.wrap(s.AgentForceLeave))
handleFuncMetrics("/v1/agent/check/register", s.wrap(s.AgentRegisterCheck))
handleFuncMetrics("/v1/agent/check/deregister/", s.wrap(s.AgentDeregisterCheck))
handleFuncMetrics("/v1/agent/check/pass/", s.wrap(s.AgentCheckPass))
handleFuncMetrics("/v1/agent/check/warn/", s.wrap(s.AgentCheckWarn))
handleFuncMetrics("/v1/agent/check/fail/", s.wrap(s.AgentCheckFail))
handleFuncMetrics("/v1/agent/check/update/", s.wrap(s.AgentCheckUpdate))
handleFuncMetrics("/v1/agent/service/register", s.wrap(s.AgentRegisterService))
handleFuncMetrics("/v1/agent/service/deregister/", s.wrap(s.AgentDeregisterService))
handleFuncMetrics("/v1/agent/service/maintenance/", s.wrap(s.AgentServiceMaintenance))
handleFuncMetrics("/v1/catalog/register", s.wrap(s.CatalogRegister))
handleFuncMetrics("/v1/catalog/deregister", s.wrap(s.CatalogDeregister))
handleFuncMetrics("/v1/catalog/datacenters", s.wrap(s.CatalogDatacenters))
handleFuncMetrics("/v1/catalog/nodes", s.wrap(s.CatalogNodes))
handleFuncMetrics("/v1/catalog/services", s.wrap(s.CatalogServices))
handleFuncMetrics("/v1/catalog/service/", s.wrap(s.CatalogServiceNodes))
handleFuncMetrics("/v1/catalog/node/", s.wrap(s.CatalogNodeServices))
if !s.agent.config.DisableCoordinates {
handleFuncMetrics("/v1/coordinate/datacenters", s.wrap(s.CoordinateDatacenters))
handleFuncMetrics("/v1/coordinate/nodes", s.wrap(s.CoordinateNodes))
handleFuncMetrics("/v1/coordinate/node/", s.wrap(s.CoordinateNode))
handleFuncMetrics("/v1/coordinate/update", s.wrap(s.CoordinateUpdate))
} else {
handleFuncMetrics("/v1/coordinate/datacenters", s.wrap(coordinateDisabled))
handleFuncMetrics("/v1/coordinate/nodes", s.wrap(coordinateDisabled))
handleFuncMetrics("/v1/coordinate/node/", s.wrap(coordinateDisabled))
handleFuncMetrics("/v1/coordinate/update", s.wrap(coordinateDisabled))
}
handleFuncMetrics("/v1/event/fire/", s.wrap(s.EventFire))
handleFuncMetrics("/v1/event/list", s.wrap(s.EventList))
handleFuncMetrics("/v1/health/node/", s.wrap(s.HealthNodeChecks))
handleFuncMetrics("/v1/health/checks/", s.wrap(s.HealthServiceChecks))
handleFuncMetrics("/v1/health/state/", s.wrap(s.HealthChecksInState))
handleFuncMetrics("/v1/health/service/", s.wrap(s.HealthServiceNodes))
handleFuncMetrics("/v1/internal/ui/nodes", s.wrap(s.UINodes))
handleFuncMetrics("/v1/internal/ui/node/", s.wrap(s.UINodeInfo))
handleFuncMetrics("/v1/internal/ui/services", s.wrap(s.UIServices))
handleFuncMetrics("/v1/kv/", s.wrap(s.KVSEndpoint))
handleFuncMetrics("/v1/operator/raft/configuration", s.wrap(s.OperatorRaftConfiguration))
handleFuncMetrics("/v1/operator/raft/peer", s.wrap(s.OperatorRaftPeer))
handleFuncMetrics("/v1/operator/keyring", s.wrap(s.OperatorKeyringEndpoint))
handleFuncMetrics("/v1/operator/autopilot/configuration", s.wrap(s.OperatorAutopilotConfiguration))
handleFuncMetrics("/v1/operator/autopilot/health", s.wrap(s.OperatorServerHealth))
handleFuncMetrics("/v1/query", s.wrap(s.PreparedQueryGeneral))
handleFuncMetrics("/v1/query/", s.wrap(s.PreparedQuerySpecific))
handleFuncMetrics("/v1/session/create", s.wrap(s.SessionCreate))
handleFuncMetrics("/v1/session/destroy/", s.wrap(s.SessionDestroy))
handleFuncMetrics("/v1/session/renew/", s.wrap(s.SessionRenew))
handleFuncMetrics("/v1/session/info/", s.wrap(s.SessionGet))
handleFuncMetrics("/v1/session/node/", s.wrap(s.SessionsForNode))
handleFuncMetrics("/v1/session/list", s.wrap(s.SessionList))
handleFuncMetrics("/v1/status/leader", s.wrap(s.StatusLeader))
handleFuncMetrics("/v1/status/peers", s.wrap(s.StatusPeers))
handleFuncMetrics("/v1/snapshot", s.wrap(s.Snapshot))
handleFuncMetrics("/v1/txn", s.wrap(s.Txn))
// Debug endpoints.
if enableDebug {
handleFuncMetrics("/debug/pprof/", pprof.Index)
handleFuncMetrics("/debug/pprof/cmdline", pprof.Cmdline)
@ -205,7 +145,7 @@ var (
)
// wrap is used to wrap functions to make them more convenient
func (s *HTTPServer) wrap(handler func(resp http.ResponseWriter, req *http.Request) (interface{}, error)) http.HandlerFunc {
func (s *HTTPServer) wrap(handler endpoint) http.HandlerFunc {
return func(resp http.ResponseWriter, req *http.Request) {
setHeaders(resp, s.agent.config.HTTPResponseHeaders)
setTranslateAddr(resp, s.agent.config.TranslateWANAddrs)

71
agent/http_oss.go Normal file
View File

@ -0,0 +1,71 @@
package agent
func init() {
registerEndpoint("/v1/acl/bootstrap", (*HTTPServer).ACLBootstrap)
registerEndpoint("/v1/acl/create", (*HTTPServer).ACLCreate)
registerEndpoint("/v1/acl/update", (*HTTPServer).ACLUpdate)
registerEndpoint("/v1/acl/destroy/", (*HTTPServer).ACLDestroy)
registerEndpoint("/v1/acl/info/", (*HTTPServer).ACLGet)
registerEndpoint("/v1/acl/clone/", (*HTTPServer).ACLClone)
registerEndpoint("/v1/acl/list", (*HTTPServer).ACLList)
registerEndpoint("/v1/acl/replication", (*HTTPServer).ACLReplicationStatus)
registerEndpoint("/v1/agent/token/", (*HTTPServer).AgentToken)
registerEndpoint("/v1/agent/self", (*HTTPServer).AgentSelf)
registerEndpoint("/v1/agent/maintenance", (*HTTPServer).AgentNodeMaintenance)
registerEndpoint("/v1/agent/reload", (*HTTPServer).AgentReload)
registerEndpoint("/v1/agent/monitor", (*HTTPServer).AgentMonitor)
registerEndpoint("/v1/agent/metrics", (*HTTPServer).AgentMetrics)
registerEndpoint("/v1/agent/services", (*HTTPServer).AgentServices)
registerEndpoint("/v1/agent/checks", (*HTTPServer).AgentChecks)
registerEndpoint("/v1/agent/members", (*HTTPServer).AgentMembers)
registerEndpoint("/v1/agent/join/", (*HTTPServer).AgentJoin)
registerEndpoint("/v1/agent/leave", (*HTTPServer).AgentLeave)
registerEndpoint("/v1/agent/force-leave/", (*HTTPServer).AgentForceLeave)
registerEndpoint("/v1/agent/check/register", (*HTTPServer).AgentRegisterCheck)
registerEndpoint("/v1/agent/check/deregister/", (*HTTPServer).AgentDeregisterCheck)
registerEndpoint("/v1/agent/check/pass/", (*HTTPServer).AgentCheckPass)
registerEndpoint("/v1/agent/check/warn/", (*HTTPServer).AgentCheckWarn)
registerEndpoint("/v1/agent/check/fail/", (*HTTPServer).AgentCheckFail)
registerEndpoint("/v1/agent/check/update/", (*HTTPServer).AgentCheckUpdate)
registerEndpoint("/v1/agent/service/register", (*HTTPServer).AgentRegisterService)
registerEndpoint("/v1/agent/service/deregister/", (*HTTPServer).AgentDeregisterService)
registerEndpoint("/v1/agent/service/maintenance/", (*HTTPServer).AgentServiceMaintenance)
registerEndpoint("/v1/catalog/register", (*HTTPServer).CatalogRegister)
registerEndpoint("/v1/catalog/deregister", (*HTTPServer).CatalogDeregister)
registerEndpoint("/v1/catalog/datacenters", (*HTTPServer).CatalogDatacenters)
registerEndpoint("/v1/catalog/nodes", (*HTTPServer).CatalogNodes)
registerEndpoint("/v1/catalog/services", (*HTTPServer).CatalogServices)
registerEndpoint("/v1/catalog/service/", (*HTTPServer).CatalogServiceNodes)
registerEndpoint("/v1/catalog/node/", (*HTTPServer).CatalogNodeServices)
registerEndpoint("/v1/coordinate/datacenters", (*HTTPServer).CoordinateDatacenters)
registerEndpoint("/v1/coordinate/nodes", (*HTTPServer).CoordinateNodes)
registerEndpoint("/v1/coordinate/node/", (*HTTPServer).CoordinateNode)
registerEndpoint("/v1/coordinate/update", (*HTTPServer).CoordinateUpdate)
registerEndpoint("/v1/event/fire/", (*HTTPServer).EventFire)
registerEndpoint("/v1/event/list", (*HTTPServer).EventList)
registerEndpoint("/v1/health/node/", (*HTTPServer).HealthNodeChecks)
registerEndpoint("/v1/health/checks/", (*HTTPServer).HealthServiceChecks)
registerEndpoint("/v1/health/state/", (*HTTPServer).HealthChecksInState)
registerEndpoint("/v1/health/service/", (*HTTPServer).HealthServiceNodes)
registerEndpoint("/v1/internal/ui/nodes", (*HTTPServer).UINodes)
registerEndpoint("/v1/internal/ui/node/", (*HTTPServer).UINodeInfo)
registerEndpoint("/v1/internal/ui/services", (*HTTPServer).UIServices)
registerEndpoint("/v1/kv/", (*HTTPServer).KVSEndpoint)
registerEndpoint("/v1/operator/raft/configuration", (*HTTPServer).OperatorRaftConfiguration)
registerEndpoint("/v1/operator/raft/peer", (*HTTPServer).OperatorRaftPeer)
registerEndpoint("/v1/operator/keyring", (*HTTPServer).OperatorKeyringEndpoint)
registerEndpoint("/v1/operator/autopilot/configuration", (*HTTPServer).OperatorAutopilotConfiguration)
registerEndpoint("/v1/operator/autopilot/health", (*HTTPServer).OperatorServerHealth)
registerEndpoint("/v1/query", (*HTTPServer).PreparedQueryGeneral)
registerEndpoint("/v1/query/", (*HTTPServer).PreparedQuerySpecific)
registerEndpoint("/v1/session/create", (*HTTPServer).SessionCreate)
registerEndpoint("/v1/session/destroy/", (*HTTPServer).SessionDestroy)
registerEndpoint("/v1/session/renew/", (*HTTPServer).SessionRenew)
registerEndpoint("/v1/session/info/", (*HTTPServer).SessionGet)
registerEndpoint("/v1/session/node/", (*HTTPServer).SessionsForNode)
registerEndpoint("/v1/session/list", (*HTTPServer).SessionList)
registerEndpoint("/v1/status/leader", (*HTTPServer).StatusLeader)
registerEndpoint("/v1/status/peers", (*HTTPServer).StatusPeers)
registerEndpoint("/v1/snapshot", (*HTTPServer).Snapshot)
registerEndpoint("/v1/txn", (*HTTPServer).Txn)
}

113
agent/http_oss_test.go Normal file
View File

@ -0,0 +1,113 @@
package agent
import (
"fmt"
"net/http"
"strings"
"testing"
"github.com/hashicorp/consul/logger"
)
func TestHTTPAPI_MethodNotAllowed_OSS(t *testing.T) {
tests := []struct {
methods, uri string
}{
{"PUT", "/v1/acl/bootstrap"},
{"PUT", "/v1/acl/create"},
{"PUT", "/v1/acl/update"},
{"PUT", "/v1/acl/destroy/"},
{"GET", "/v1/acl/info/"},
{"PUT", "/v1/acl/clone/"},
{"GET", "/v1/acl/list"},
{"GET", "/v1/acl/replication"},
{"PUT", "/v1/agent/token/"},
{"GET", "/v1/agent/self"},
{"GET", "/v1/agent/members"},
{"PUT", "/v1/agent/check/deregister/"},
{"PUT", "/v1/agent/check/fail/"},
{"PUT", "/v1/agent/check/pass/"},
{"PUT", "/v1/agent/check/register"},
{"PUT", "/v1/agent/check/update/"},
{"PUT", "/v1/agent/check/warn/"},
{"GET", "/v1/agent/checks"},
{"PUT", "/v1/agent/force-leave/"},
{"PUT", "/v1/agent/join/"},
{"PUT", "/v1/agent/leave"},
{"PUT", "/v1/agent/maintenance"},
{"GET", "/v1/agent/metrics"},
// {"GET", "/v1/agent/monitor"}, // requires LogWriter. Hangs if LogWriter is provided
{"PUT", "/v1/agent/reload"},
{"PUT", "/v1/agent/service/deregister/"},
{"PUT", "/v1/agent/service/maintenance/"},
{"PUT", "/v1/agent/service/register"},
{"GET", "/v1/agent/services"},
{"GET", "/v1/catalog/datacenters"},
{"PUT", "/v1/catalog/deregister"},
{"GET", "/v1/catalog/node/"},
{"GET", "/v1/catalog/nodes"},
{"PUT", "/v1/catalog/register"},
{"GET", "/v1/catalog/service/"},
{"GET", "/v1/catalog/services"},
{"GET", "/v1/coordinate/datacenters"},
{"GET", "/v1/coordinate/nodes"},
{"GET", "/v1/coordinate/node/"},
{"PUT", "/v1/event/fire/"},
{"GET", "/v1/event/list"},
{"GET", "/v1/health/checks/"},
{"GET", "/v1/health/node/"},
{"GET", "/v1/health/service/"},
{"GET", "/v1/health/state/"},
{"GET", "/v1/internal/ui/node/"},
{"GET", "/v1/internal/ui/nodes"},
{"GET", "/v1/internal/ui/services"},
{"GET PUT DELETE", "/v1/kv/"},
{"GET PUT", "/v1/operator/autopilot/configuration"},
{"GET", "/v1/operator/autopilot/health"},
{"GET POST PUT DELETE", "/v1/operator/keyring"},
{"GET", "/v1/operator/raft/configuration"},
{"DELETE", "/v1/operator/raft/peer"},
{"GET POST", "/v1/query"},
{"GET PUT DELETE", "/v1/query/"},
{"GET", "/v1/query/xxx/execute"},
{"GET", "/v1/query/xxx/explain"},
{"PUT", "/v1/session/create"},
{"PUT", "/v1/session/destroy/"},
{"GET", "/v1/session/info/"},
{"GET", "/v1/session/list"},
{"GET", "/v1/session/node/"},
{"PUT", "/v1/session/renew/"},
{"GET PUT", "/v1/snapshot"},
{"GET", "/v1/status/leader"},
// {"GET", "/v1/status/peers"},// hangs
{"PUT", "/v1/txn"},
}
a := NewTestAgent(t.Name(), `acl_datacenter = "dc1"`)
a.Agent.LogWriter = logger.NewLogWriter(512)
defer a.Shutdown()
all := []string{"GET", "PUT", "POST", "DELETE", "HEAD"}
client := http.Client{}
for _, tt := range tests {
for _, m := range all {
t.Run(m+" "+tt.uri, func(t *testing.T) {
uri := fmt.Sprintf("http://%s%s", a.HTTPAddr(), tt.uri)
req, _ := http.NewRequest(m, uri, nil)
resp, err := client.Do(req)
if err != nil {
t.Fatal("client.Do failed: ", err)
}
allowed := strings.Contains(tt.methods, m)
if allowed && resp.StatusCode == http.StatusMethodNotAllowed {
t.Fatalf("method allowed: got status code %d want any other code", resp.StatusCode)
}
if !allowed && resp.StatusCode != http.StatusMethodNotAllowed {
t.Fatalf("method not allowed: got status code %d want %d", resp.StatusCode, http.StatusMethodNotAllowed)
}
})
}
}
}

110
agent/http_test.go
View File

@ -20,7 +20,6 @@ import (
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/logger"
"github.com/hashicorp/consul/testutil"
"github.com/hashicorp/go-cleanhttp"
"golang.org/x/net/http2"
@ -390,115 +389,6 @@ func TestHTTPAPIResponseHeaders(t *testing.T) {
}
}
func TestHTTPAPI_MethodNotAllowed(t *testing.T) {
tests := []struct {
methods, uri string
}{
{"PUT", "/v1/acl/bootstrap"},
{"PUT", "/v1/acl/create"},
{"PUT", "/v1/acl/update"},
{"PUT", "/v1/acl/destroy/"},
{"GET", "/v1/acl/info/"},
{"PUT", "/v1/acl/clone/"},
{"GET", "/v1/acl/list"},
{"GET", "/v1/acl/replication"},
{"PUT", "/v1/agent/token/"},
{"GET", "/v1/agent/self"},
{"GET", "/v1/agent/members"},
{"PUT", "/v1/agent/check/deregister/"},
{"PUT", "/v1/agent/check/fail/"},
{"PUT", "/v1/agent/check/pass/"},
{"PUT", "/v1/agent/check/register"},
{"PUT", "/v1/agent/check/update/"},
{"PUT", "/v1/agent/check/warn/"},
{"GET", "/v1/agent/checks"},
{"PUT", "/v1/agent/force-leave/"},
{"PUT", "/v1/agent/join/"},
{"PUT", "/v1/agent/leave"},
{"PUT", "/v1/agent/maintenance"},
{"GET", "/v1/agent/metrics"},
// {"GET", "/v1/agent/monitor"}, // requires LogWriter. Hangs if LogWriter is provided
{"PUT", "/v1/agent/reload"},
{"PUT", "/v1/agent/service/deregister/"},
{"PUT", "/v1/agent/service/maintenance/"},
{"PUT", "/v1/agent/service/register"},
{"GET", "/v1/agent/services"},
{"GET", "/v1/catalog/datacenters"},
{"PUT", "/v1/catalog/deregister"},
{"GET", "/v1/catalog/node/"},
{"GET", "/v1/catalog/nodes"},
{"PUT", "/v1/catalog/register"},
{"GET", "/v1/catalog/service/"},
{"GET", "/v1/catalog/services"},
{"GET", "/v1/coordinate/datacenters"},
{"GET", "/v1/coordinate/nodes"},
{"GET", "/v1/coordinate/node/"},
{"PUT", "/v1/event/fire/"},
{"GET", "/v1/event/list"},
{"GET", "/v1/health/checks/"},
{"GET", "/v1/health/node/"},
{"GET", "/v1/health/service/"},
{"GET", "/v1/health/state/"},
{"GET", "/v1/internal/ui/node/"},
{"GET", "/v1/internal/ui/nodes"},
{"GET", "/v1/internal/ui/services"},
{"GET PUT DELETE", "/v1/kv/"},
{"GET PUT", "/v1/operator/autopilot/configuration"},
{"GET", "/v1/operator/autopilot/health"},
{"GET POST PUT DELETE", "/v1/operator/keyring"},
{"GET", "/v1/operator/raft/configuration"},
{"DELETE", "/v1/operator/raft/peer"},
{"GET POST", "/v1/query"},
{"GET PUT DELETE", "/v1/query/"},
{"GET", "/v1/query/xxx/execute"},
{"GET", "/v1/query/xxx/explain"},
{"PUT", "/v1/session/create"},
{"PUT", "/v1/session/destroy/"},
{"GET", "/v1/session/info/"},
{"GET", "/v1/session/list"},
{"GET", "/v1/session/node/"},
{"PUT", "/v1/session/renew/"},
{"GET PUT", "/v1/snapshot"},
{"GET", "/v1/status/leader"},
// {"GET", "/v1/status/peers"},// hangs
{"PUT", "/v1/txn"},
// enterprise only
// {"GET POST", "/v1/operator/area"},
// {"GET PUT DELETE", "/v1/operator/area/"},
// {"GET", "/v1/operator/area/xxx/members"},
}
a := NewTestAgent(t.Name(), `acl_datacenter = "dc1"`)
a.Agent.LogWriter = logger.NewLogWriter(512)
defer a.Shutdown()
all := []string{"GET", "PUT", "POST", "DELETE", "HEAD"}
client := http.Client{}
for _, tt := range tests {
for _, m := range all {
t.Run(m+" "+tt.uri, func(t *testing.T) {
uri := fmt.Sprintf("http://%s%s", a.HTTPAddr(), tt.uri)
req, _ := http.NewRequest(m, uri, nil)
resp, err := client.Do(req)
if err != nil {
t.Fatal("client.Do failed: ", err)
}
allowed := strings.Contains(tt.methods, m)
if allowed && resp.StatusCode == http.StatusMethodNotAllowed {
t.Fatalf("method allowed: got status code %d want any other code", resp.StatusCode)
}
if !allowed && resp.StatusCode != http.StatusMethodNotAllowed {
t.Fatalf("method not allowed: got status code %d want %d", resp.StatusCode, http.StatusMethodNotAllowed)
}
})
}
}
}
func TestContentTypeIsJSON(t *testing.T) {
t.Parallel()
a := NewTestAgent(t.Name(), "")

125
command/commands.go
View File

@ -1,125 +0,0 @@
package command
import (
"os"
"os/signal"
"syscall"
"github.com/hashicorp/consul/command/agent"
"github.com/hashicorp/consul/command/catalog"
catlistdc "github.com/hashicorp/consul/command/catalog/list/dc"
catlistnodes "github.com/hashicorp/consul/command/catalog/list/nodes"
catlistsvc "github.com/hashicorp/consul/command/catalog/list/services"
"github.com/hashicorp/consul/command/event"
"github.com/hashicorp/consul/command/exec"
"github.com/hashicorp/consul/command/forceleave"
"github.com/hashicorp/consul/command/info"
"github.com/hashicorp/consul/command/join"
"github.com/hashicorp/consul/command/keygen"
"github.com/hashicorp/consul/command/keyring"
"github.com/hashicorp/consul/command/kv"
kvdel "github.com/hashicorp/consul/command/kv/del"
kvexp "github.com/hashicorp/consul/command/kv/exp"
kvget "github.com/hashicorp/consul/command/kv/get"
kvimp "github.com/hashicorp/consul/command/kv/imp"
kvput "github.com/hashicorp/consul/command/kv/put"
"github.com/hashicorp/consul/command/leave"
"github.com/hashicorp/consul/command/lock"
"github.com/hashicorp/consul/command/maint"
"github.com/hashicorp/consul/command/members"
"github.com/hashicorp/consul/command/monitor"
"github.com/hashicorp/consul/command/operator"
operauto "github.com/hashicorp/consul/command/operator/autopilot"
operautoget "github.com/hashicorp/consul/command/operator/autopilot/get"
operautoset "github.com/hashicorp/consul/command/operator/autopilot/set"
operraft "github.com/hashicorp/consul/command/operator/raft"
operraftlist "github.com/hashicorp/consul/command/operator/raft/listpeers"
operraftremove "github.com/hashicorp/consul/command/operator/raft/removepeer"
"github.com/hashicorp/consul/command/reload"
"github.com/hashicorp/consul/command/rtt"
"github.com/hashicorp/consul/command/snapshot"
snapinspect "github.com/hashicorp/consul/command/snapshot/inspect"
snaprestore "github.com/hashicorp/consul/command/snapshot/restore"
snapsave "github.com/hashicorp/consul/command/snapshot/save"
"github.com/hashicorp/consul/command/validate"
"github.com/hashicorp/consul/command/version"
"github.com/hashicorp/consul/command/watch"
consulversion "github.com/hashicorp/consul/version"
"github.com/mitchellh/cli"
)
// Commands is the mapping of all the available Consul commands.
var Commands map[string]cli.CommandFactory
func init() {
rev := consulversion.GitCommit
ver := consulversion.Version
verPre := consulversion.VersionPrerelease
verHuman := consulversion.GetHumanVersion()
ui := &cli.BasicUi{Writer: os.Stdout, ErrorWriter: os.Stderr}
Commands = map[string]cli.CommandFactory{
"agent": func() (cli.Command, error) {
return agent.New(ui, rev, ver, verPre, verHuman, make(chan struct{})), nil
},
"catalog": func() (cli.Command, error) { return catalog.New(), nil },
"catalog datacenters": func() (cli.Command, error) { return catlistdc.New(ui), nil },
"catalog nodes": func() (cli.Command, error) { return catlistnodes.New(ui), nil },
"catalog services": func() (cli.Command, error) { return catlistsvc.New(ui), nil },
"event": func() (cli.Command, error) { return event.New(ui), nil },
"exec": func() (cli.Command, error) { return exec.New(ui, makeShutdownCh()), nil },
"force-leave": func() (cli.Command, error) { return forceleave.New(ui), nil },
"info": func() (cli.Command, error) { return info.New(ui), nil },
"join": func() (cli.Command, error) { return join.New(ui), nil },
"keygen": func() (cli.Command, error) { return keygen.New(ui), nil },
"keyring": func() (cli.Command, error) { return keyring.New(ui), nil },
"kv": func() (cli.Command, error) { return kv.New(), nil },
"kv delete": func() (cli.Command, error) { return kvdel.New(ui), nil },
"kv export": func() (cli.Command, error) { return kvexp.New(ui), nil },
"kv get": func() (cli.Command, error) { return kvget.New(ui), nil },
"kv import": func() (cli.Command, error) { return kvimp.New(ui), nil },
"kv put": func() (cli.Command, error) { return kvput.New(ui), nil },
"leave": func() (cli.Command, error) { return leave.New(ui), nil },
"lock": func() (cli.Command, error) { return lock.New(ui), nil },
"maint": func() (cli.Command, error) { return maint.New(ui), nil },
"members": func() (cli.Command, error) { return members.New(ui), nil },
"monitor": func() (cli.Command, error) { return monitor.New(ui, makeShutdownCh()), nil },
"operator": func() (cli.Command, error) { return operator.New(), nil },
"operator autopilot": func() (cli.Command, error) { return operauto.New(), nil },
"operator autopilot get-config": func() (cli.Command, error) { return operautoget.New(ui), nil },
"operator autopilot set-config": func() (cli.Command, error) { return operautoset.New(ui), nil },
"operator raft": func() (cli.Command, error) { return operraft.New(), nil },
"operator raft list-peers": func() (cli.Command, error) { return operraftlist.New(ui), nil },
"operator raft remove-peer": func() (cli.Command, error) { return operraftremove.New(ui), nil },
"reload": func() (cli.Command, error) { return reload.New(ui), nil },
"rtt": func() (cli.Command, error) { return rtt.New(ui), nil },
"snapshot": func() (cli.Command, error) { return snapshot.New(), nil },
"snapshot inspect": func() (cli.Command, error) { return snapinspect.New(ui), nil },
"snapshot restore": func() (cli.Command, error) { return snaprestore.New(ui), nil },
"snapshot save": func() (cli.Command, error) { return snapsave.New(ui), nil },
"validate": func() (cli.Command, error) { return validate.New(ui), nil },
"version": func() (cli.Command, error) { return version.New(ui, verHuman), nil },
"watch": func() (cli.Command, error) { return watch.New(ui, makeShutdownCh()), nil },
}
}
// makeShutdownCh returns a channel that can be used for shutdown
// notifications for commands. This channel will send a message for every
// interrupt or SIGTERM received.
func makeShutdownCh() <-chan struct{} {
resultCh := make(chan struct{})
signalCh := make(chan os.Signal, 4)
signal.Notify(signalCh, os.Interrupt, syscall.SIGTERM)
go func() {
for {
<-signalCh
resultCh <- struct{}{}
}
}()
return resultCh
}

95
command/commands_oss.go Normal file
View File

@ -0,0 +1,95 @@
package command
import (
"github.com/hashicorp/consul/command/agent"
"github.com/hashicorp/consul/command/catalog"
catlistdc "github.com/hashicorp/consul/command/catalog/list/dc"
catlistnodes "github.com/hashicorp/consul/command/catalog/list/nodes"
catlistsvc "github.com/hashicorp/consul/command/catalog/list/services"
"github.com/hashicorp/consul/command/event"
"github.com/hashicorp/consul/command/exec"
"github.com/hashicorp/consul/command/forceleave"
"github.com/hashicorp/consul/command/info"
"github.com/hashicorp/consul/command/join"
"github.com/hashicorp/consul/command/keygen"
"github.com/hashicorp/consul/command/keyring"
"github.com/hashicorp/consul/command/kv"
kvdel "github.com/hashicorp/consul/command/kv/del"
kvexp "github.com/hashicorp/consul/command/kv/exp"
kvget "github.com/hashicorp/consul/command/kv/get"
kvimp "github.com/hashicorp/consul/command/kv/imp"
kvput "github.com/hashicorp/consul/command/kv/put"
"github.com/hashicorp/consul/command/leave"
"github.com/hashicorp/consul/command/lock"
"github.com/hashicorp/consul/command/maint"
"github.com/hashicorp/consul/command/members"
"github.com/hashicorp/consul/command/monitor"
"github.com/hashicorp/consul/command/operator"
operauto "github.com/hashicorp/consul/command/operator/autopilot"
operautoget "github.com/hashicorp/consul/command/operator/autopilot/get"
operautoset "github.com/hashicorp/consul/command/operator/autopilot/set"
operraft "github.com/hashicorp/consul/command/operator/raft"
operraftlist "github.com/hashicorp/consul/command/operator/raft/listpeers"
operraftremove "github.com/hashicorp/consul/command/operator/raft/removepeer"
"github.com/hashicorp/consul/command/reload"
"github.com/hashicorp/consul/command/rtt"
"github.com/hashicorp/consul/command/snapshot"
snapinspect "github.com/hashicorp/consul/command/snapshot/inspect"
snaprestore "github.com/hashicorp/consul/command/snapshot/restore"
snapsave "github.com/hashicorp/consul/command/snapshot/save"
"github.com/hashicorp/consul/command/validate"
"github.com/hashicorp/consul/command/version"
"github.com/hashicorp/consul/command/watch"
consulversion "github.com/hashicorp/consul/version"
"github.com/mitchellh/cli"
)
func init() {
rev := consulversion.GitCommit
ver := consulversion.Version
verPre := consulversion.VersionPrerelease
verHuman := consulversion.GetHumanVersion()
Register("agent", func(ui cli.Ui) (cli.Command, error) {
return agent.New(ui, rev, ver, verPre, verHuman, make(chan struct{})), nil
})
Register("catalog", func(cli.Ui) (cli.Command, error) { return catalog.New(), nil })
Register("catalog datacenters", func(ui cli.Ui) (cli.Command, error) { return catlistdc.New(ui), nil })
Register("catalog nodes", func(ui cli.Ui) (cli.Command, error) { return catlistnodes.New(ui), nil })
Register("catalog services", func(ui cli.Ui) (cli.Command, error) { return catlistsvc.New(ui), nil })
Register("event", func(ui cli.Ui) (cli.Command, error) { return event.New(ui), nil })
Register("exec", func(ui cli.Ui) (cli.Command, error) { return exec.New(ui, MakeShutdownCh()), nil })
Register("force-leave", func(ui cli.Ui) (cli.Command, error) { return forceleave.New(ui), nil })
Register("info", func(ui cli.Ui) (cli.Command, error) { return info.New(ui), nil })
Register("join", func(ui cli.Ui) (cli.Command, error) { return join.New(ui), nil })
Register("keygen", func(ui cli.Ui) (cli.Command, error) { return keygen.New(ui), nil })
Register("keyring", func(ui cli.Ui) (cli.Command, error) { return keyring.New(ui), nil })
Register("kv", func(cli.Ui) (cli.Command, error) { return kv.New(), nil })
Register("kv delete", func(ui cli.Ui) (cli.Command, error) { return kvdel.New(ui), nil })
Register("kv export", func(ui cli.Ui) (cli.Command, error) { return kvexp.New(ui), nil })
Register("kv get", func(ui cli.Ui) (cli.Command, error) { return kvget.New(ui), nil })
Register("kv import", func(ui cli.Ui) (cli.Command, error) { return kvimp.New(ui), nil })
Register("kv put", func(ui cli.Ui) (cli.Command, error) { return kvput.New(ui), nil })
Register("leave", func(ui cli.Ui) (cli.Command, error) { return leave.New(ui), nil })
Register("lock", func(ui cli.Ui) (cli.Command, error) { return lock.New(ui), nil })
Register("maint", func(ui cli.Ui) (cli.Command, error) { return maint.New(ui), nil })
Register("members", func(ui cli.Ui) (cli.Command, error) { return members.New(ui), nil })
Register("monitor", func(ui cli.Ui) (cli.Command, error) { return monitor.New(ui, MakeShutdownCh()), nil })
Register("operator", func(cli.Ui) (cli.Command, error) { return operator.New(), nil })
Register("operator autopilot", func(cli.Ui) (cli.Command, error) { return operauto.New(), nil })
Register("operator autopilot get-config", func(ui cli.Ui) (cli.Command, error) { return operautoget.New(ui), nil })
Register("operator autopilot set-config", func(ui cli.Ui) (cli.Command, error) { return operautoset.New(ui), nil })
Register("operator raft", func(cli.Ui) (cli.Command, error) { return operraft.New(), nil })
Register("operator raft list-peers", func(ui cli.Ui) (cli.Command, error) { return operraftlist.New(ui), nil })
Register("operator raft remove-peer", func(ui cli.Ui) (cli.Command, error) { return operraftremove.New(ui), nil })
Register("reload", func(ui cli.Ui) (cli.Command, error) { return reload.New(ui), nil })
Register("rtt", func(ui cli.Ui) (cli.Command, error) { return rtt.New(ui), nil })
Register("snapshot", func(cli.Ui) (cli.Command, error) { return snapshot.New(), nil })
Register("snapshot inspect", func(ui cli.Ui) (cli.Command, error) { return snapinspect.New(ui), nil })
Register("snapshot restore", func(ui cli.Ui) (cli.Command, error) { return snaprestore.New(ui), nil })
Register("snapshot save", func(ui cli.Ui) (cli.Command, error) { return snapsave.New(ui), nil })
Register("validate", func(ui cli.Ui) (cli.Command, error) { return validate.New(ui), nil })
Register("version", func(ui cli.Ui) (cli.Command, error) { return version.New(ui, verHuman), nil })
Register("watch", func(ui cli.Ui) (cli.Command, error) { return watch.New(ui, MakeShutdownCh()), nil })
}

60
command/registry.go Normal file
View File

@ -0,0 +1,60 @@
package command
import (
"fmt"
"os"
"os/signal"
"syscall"
"github.com/mitchellh/cli"
)
// Factory is a function that returns a new instance of a CLI-sub command.
type Factory func(cli.Ui) (cli.Command, error)
// Register adds a new CLI sub-command to the registry.
func Register(name string, fn Factory) {
if registry == nil {
registry = make(map[string]Factory)
}
if registry[name] != nil {
panic(fmt.Errorf("Command %q is already registered", name))
}
registry[name] = fn
}
// Map returns a realized mapping of available CLI commands in a format that
// the CLI class can consume. This should be called after all registration is
// complete.
func Map(ui cli.Ui) map[string]cli.CommandFactory {
m := make(map[string]cli.CommandFactory)
for name, fn := range registry {
thisFn := fn
m[name] = func() (cli.Command, error) {
return thisFn(ui)
}
}
return m
}
// registry has an entry for each available CLI sub-command, indexed by sub
// command name. This should be populated at package init() time via Register().
var registry map[string]Factory
// MakeShutdownCh returns a channel that can be used for shutdown notifications
// for commands. This channel will send a message for every interrupt or SIGTERM
// received.
func MakeShutdownCh() <-chan struct{} {
resultCh := make(chan struct{})
signalCh := make(chan os.Signal, 4)
signal.Notify(signalCh, os.Interrupt, syscall.SIGTERM)
go func() {
for {
<-signalCh
resultCh <- struct{}{}
}
}()
return resultCh
}

14
main.go
View File

@ -34,19 +34,19 @@ func realMain() int {
}
}
var cmds []string
for c := range command.Commands {
if c != "configtest" {
cmds = append(cmds, c)
}
ui := &cli.BasicUi{Writer: os.Stdout, ErrorWriter: os.Stderr}
cmds := command.Map(ui)
var names []string
for c := range cmds {
names = append(names, c)
}
cli := &cli.CLI{
Args: args,
Commands: command.Commands,
Commands: cmds,
Autocomplete: true,
Name: "consul",
HelpFunc: cli.FilteredHelpFunc(cmds, cli.BasicHelpFunc("consul")),
HelpFunc: cli.FilteredHelpFunc(names, cli.BasicHelpFunc("consul")),
}
exitCode, err := cli.Run()

0
sentinel/sentinel_stub.go → sentinel/sentinel_oss.go
View File