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Implement Client Agent Auto Config 

There are a couple of things in here.

First, just like auto encrypt, any Cluster.AutoConfig RPC will implicitly use the less secure RPC mechanism.

This drastically modifies how the Consul Agent starts up and moves most of the responsibilities (other than signal handling) from the cli command and into the Agent.
This commit is contained in:
Matt Keeler 2020-06-10 16:47:35 -04:00
parent 8b7d669a27
commit 3dbbd2d37d
No known key found for this signature in database
GPG Key ID: 04DBAE1857E0081B
29 changed files with 1777 additions and 379 deletions
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8
agent/acl.go
View File

@ -187,11 +187,11 @@ func (a *Agent) vetCheckRegisterWithAuthorizer(authz acl.Authorizer, check *stru
// Vet the check itself.
if len(check.ServiceName) > 0 {
if authz.ServiceWrite(check.ServiceName, &authzContext) != acl.Allow {
return acl.ErrPermissionDenied
return acl.PermissionDenied("Missing service:write on %v", structs.ServiceIDString(check.ServiceName, &check.EnterpriseMeta))
}
} else {
if authz.NodeWrite(a.config.NodeName, &authzContext) != acl.Allow {
return acl.ErrPermissionDenied
return acl.PermissionDenied("Missing node:write on %s", a.config.NodeName)
}
}
@ -199,11 +199,11 @@ func (a *Agent) vetCheckRegisterWithAuthorizer(authz acl.Authorizer, check *stru
if existing := a.State.Check(check.CompoundCheckID()); existing != nil {
if len(existing.ServiceName) > 0 {
if authz.ServiceWrite(existing.ServiceName, &authzContext) != acl.Allow {
return acl.ErrPermissionDenied
return acl.PermissionDenied("Missing service:write on %s", structs.ServiceIDString(existing.ServiceName, &existing.EnterpriseMeta))
}
} else {
if authz.NodeWrite(a.config.NodeName, &authzContext) != acl.Allow {
return acl.ErrPermissionDenied
return acl.PermissionDenied("Missing node:write on %s", a.config.NodeName)
}
}
}

21
agent/acl_test.go
View File

@ -57,7 +57,7 @@ type TestACLAgent struct {
// The key is that we are the delegate so we can control the ResolveToken responses
func NewTestACLAgent(t *testing.T, name string, hcl string, resolveAuthz authzResolver, resolveIdent identResolver) *TestACLAgent {
a := &TestACLAgent{Name: name, HCL: hcl, resolveAuthzFn: resolveAuthz, resolveIdentFn: resolveIdent}
hclDataDir := `data_dir = "acl-agent"`
dataDir := `data_dir = "acl-agent"`
logOutput := testutil.TestWriter(t)
logger := hclog.NewInterceptLogger(&hclog.LoggerOptions{
@ -66,13 +66,20 @@ func NewTestACLAgent(t *testing.T, name string, hcl string, resolveAuthz authzRe
Output: logOutput,
})
a.Config = TestConfig(logger,
config.Source{Name: a.Name, Format: "hcl", Data: a.HCL},
config.Source{Name: a.Name + ".data_dir", Format: "hcl", Data: hclDataDir},
)
opts := []AgentOption{
WithLogger(logger),
WithBuilderOpts(config.BuilderOpts{
HCL: []string{
TestConfigHCL(NodeID()),
a.HCL,
dataDir,
},
}),
}
agent, err := New(a.Config, logger)
agent, err := New(opts...)
require.NoError(t, err)
a.Config = agent.GetConfig()
a.Agent = agent
agent.LogOutput = logOutput
@ -258,7 +265,7 @@ var (
nodeRWSecret: {
token: structs.ACLToken{
AccessorID: "efb6b7d5-d343-47c1-b4cb-aa6b94d2f490",
SecretID: nodeROSecret,
SecretID: nodeRWSecret,
},
rules: `node_prefix "Node" { policy = "write" }`,
},

268
agent/agent.go
View File

@ -21,12 +21,15 @@ import (
"github.com/hashicorp/go-connlimit"
"github.com/hashicorp/go-hclog"
"github.com/hashicorp/go-memdb"
"github.com/mitchellh/cli"
"google.golang.org/grpc"
"google.golang.org/grpc/grpclog"
"github.com/armon/go-metrics"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/agent/ae"
autoconf "github.com/hashicorp/consul/agent/auto-config"
"github.com/hashicorp/consul/agent/cache"
cachetype "github.com/hashicorp/consul/agent/cache-types"
"github.com/hashicorp/consul/agent/checks"
@ -161,6 +164,8 @@ type notifier interface {
// mode, it runs a full Consul server. In client-only mode, it only forwards
// requests to other Consul servers.
type Agent struct {
autoConf *autoconf.AutoConfig
// config is the agent configuration.
config *config.RuntimeConfig
@ -248,8 +253,6 @@ type Agent struct {
eventLock sync.RWMutex
eventNotify NotifyGroup
reloadCh chan chan error
shutdown bool
shutdownCh chan struct{}
shutdownLock sync.Mutex
@ -321,23 +324,96 @@ type Agent struct {
enterpriseAgent
}
// New verifies the configuration given has a Datacenter and DataDir
// configured, and maps the remaining config fields to fields on the Agent.
func New(c *config.RuntimeConfig, logger hclog.InterceptLogger) (*Agent, error) {
if c.Datacenter == "" {
return nil, fmt.Errorf("Must configure a Datacenter")
}
if c.DataDir == "" && !c.DevMode {
return nil, fmt.Errorf("Must configure a DataDir")
}
type agentOptions struct {
logger hclog.InterceptLogger
builderOpts config.BuilderOpts
ui cli.Ui
config *config.RuntimeConfig
overrides []config.Source
writers []io.Writer
}
tlsConfigurator, err := tlsutil.NewConfigurator(c.ToTLSUtilConfig(), logger)
if err != nil {
return nil, err
}
type AgentOption func(opt *agentOptions)
// WithLogger is used to override any automatic logger creation
// and provide one already built instead. This is mostly useful
// for testing.
func WithLogger(logger hclog.InterceptLogger) AgentOption {
return func(opt *agentOptions) {
opt.logger = logger
}
}
// WithBuilderOpts specifies the command line config.BuilderOpts to use that the agent
// is being started with
func WithBuilderOpts(builderOpts config.BuilderOpts) AgentOption {
return func(opt *agentOptions) {
opt.builderOpts = builderOpts
}
}
// WithCLI provides a cli.Ui instance to use when emitting configuration
// warnings during the first configuration parsing.
func WithCLI(ui cli.Ui) AgentOption {
return func(opt *agentOptions) {
opt.ui = ui
}
}
// WithLogWriter will add an additional log output to the logger that gets
// configured after configuration parsing
func WithLogWriter(writer io.Writer) AgentOption {
return func(opt *agentOptions) {
opt.writers = append(opt.writers, writer)
}
}
// WithOverrides is used to provide a config source to append to the tail sources
// during config building. It is really only useful for testing to tune non-user
// configurable tunables to make various tests converge more quickly than they
// could otherwise.
func WithOverrides(overrides ...config.Source) AgentOption {
return func(opt *agentOptions) {
opt.overrides = overrides
}
}
// WithConfig provides an already parsed configuration to the Agent
// Deprecated: Should allow the agent to parse the configuration.
func WithConfig(config *config.RuntimeConfig) AgentOption {
return func(opt *agentOptions) {
opt.config = config
}
}
func flattenAgentOptions(options []AgentOption) agentOptions {
var flat agentOptions
for _, opt := range options {
opt(&flat)
}
return flat
}
// New process the desired options and creates a new Agent.
// This process will
// * parse the config given the config Flags
// * setup logging
// * using predefined logger given in an option
// OR
// * initialize a new logger from the configuration
// including setting up gRPC logging
// * initialize telemetry
// * create a TLS Configurator
// * build a shared connection pool
// * create the ServiceManager
// * setup the NodeID if one isn't provided in the configuration
// * create the AutoConfig object for future use in fully
// resolving the configuration
func New(options ...AgentOption) (*Agent, error) {
flat := flattenAgentOptions(options)
// Create most of the agent
a := Agent{
config: c,
checkReapAfter: make(map[structs.CheckID]time.Duration),
checkMonitors: make(map[structs.CheckID]*checks.CheckMonitor),
checkTTLs: make(map[structs.CheckID]*checks.CheckTTL),
@ -349,15 +425,79 @@ func New(c *config.RuntimeConfig, logger hclog.InterceptLogger) (*Agent, error)
eventCh: make(chan serf.UserEvent, 1024),
eventBuf: make([]*UserEvent, 256),
joinLANNotifier: &systemd.Notifier{},
reloadCh: make(chan chan error),
retryJoinCh: make(chan error),
shutdownCh: make(chan struct{}),
InterruptStartCh: make(chan struct{}),
endpoints: make(map[string]string),
tokens: new(token.Store),
logger: logger,
tlsConfigurator: tlsConfigurator,
logger: flat.logger,
}
// parse the configuration and handle the error/warnings
config, warnings, err := autoconf.LoadConfig(flat.builderOpts, config.Source{}, flat.overrides...)
if err != nil {
return nil, err
}
for _, w := range warnings {
if a.logger != nil {
a.logger.Warn(w)
} else if flat.ui != nil {
flat.ui.Warn(w)
} else {
fmt.Fprint(os.Stderr, w)
}
}
// set the config in the agent, this is just the preliminary configuration as we haven't
// loaded any auto-config sources yet.
a.config = config
if flat.logger == nil {
logConf := &logging.Config{
LogLevel: config.LogLevel,
LogJSON: config.LogJSON,
Name: logging.Agent,
EnableSyslog: config.EnableSyslog,
SyslogFacility: config.SyslogFacility,
LogFilePath: config.LogFile,
LogRotateDuration: config.LogRotateDuration,
LogRotateBytes: config.LogRotateBytes,
LogRotateMaxFiles: config.LogRotateMaxFiles,
}
logger, logOutput, err := logging.Setup(logConf, flat.writers)
if err != nil {
return nil, err
}
a.logger = logger
a.LogOutput = logOutput
grpclog.SetLoggerV2(logging.NewGRPCLogger(logConf, a.logger))
}
memSink, err := lib.InitTelemetry(config.Telemetry)
if err != nil {
return nil, fmt.Errorf("Failed to initialize telemetry: %w", err)
}
a.MemSink = memSink
// TODO (autoconf) figure out how to let this setting be pushed down via autoconf
// right now it gets defaulted if unset so this check actually doesn't do much
// for a normal running agent.
if a.config.Datacenter == "" {
return nil, fmt.Errorf("Must configure a Datacenter")
}
if a.config.DataDir == "" && !a.config.DevMode {
return nil, fmt.Errorf("Must configure a DataDir")
}
tlsConfigurator, err := tlsutil.NewConfigurator(a.config.ToTLSUtilConfig(), a.logger)
if err != nil {
return nil, err
}
a.tlsConfigurator = tlsConfigurator
err = a.initializeConnectionPool()
if err != nil {
return nil, fmt.Errorf("Failed to initialize the connection pool: %w", err)
@ -371,13 +511,45 @@ func New(c *config.RuntimeConfig, logger hclog.InterceptLogger) (*Agent, error)
// Retrieve or generate the node ID before setting up the rest of the
// agent, which depends on it.
if err := a.setupNodeID(c); err != nil {
if err := a.setupNodeID(a.config); err != nil {
return nil, fmt.Errorf("Failed to setup node ID: %v", err)
}
acOpts := []autoconf.Option{
autoconf.WithDirectRPC(a.connPool),
autoconf.WithTLSConfigurator(a.tlsConfigurator),
autoconf.WithBuilderOpts(flat.builderOpts),
autoconf.WithLogger(a.logger),
autoconf.WithOverrides(flat.overrides...),
}
ac, err := autoconf.New(acOpts...)
if err != nil {
return nil, err
}
a.autoConf = ac
return &a, nil
}
// GetLogger retrieves the agents logger
// TODO make export the logger field and get rid of this method
// This is here for now to simplify the work I am doing and make
// reviewing the final PR easier.
func (a *Agent) GetLogger() hclog.InterceptLogger {
return a.logger
}
// GetConfig retrieves the agents config
// TODO make export the config field and get rid of this method
// This is here for now to simplify the work I am doing and make
// reviewing the final PR easier.
func (a *Agent) GetConfig() *config.RuntimeConfig {
a.stateLock.Lock()
defer a.stateLock.Unlock()
return a.config
}
func (a *Agent) initializeConnectionPool() error {
var rpcSrcAddr *net.TCPAddr
if !ipaddr.IsAny(a.config.RPCBindAddr) {
@ -431,7 +603,23 @@ func (a *Agent) Start() error {
a.stateLock.Lock()
defer a.stateLock.Unlock()
c := a.config
// This needs to be done early on as it will potentially alter the configuration
// and then how other bits are brought up
c, err := a.autoConf.InitialConfiguration(&lib.StopChannelContext{StopCh: a.shutdownCh})
if err != nil {
return err
}
// copy over the existing node id, this cannot be
// changed while running anyways but this prevents
// breaking some existing behavior. then overwrite
// the configuration
c.NodeID = a.config.NodeID
a.config = c
if err := a.tlsConfigurator.Update(a.config.ToTLSUtilConfig()); err != nil {
return fmt.Errorf("Failed to load TLS configurations after applying auto-config settings: %w", err)
}
if err := a.CheckSecurity(c); err != nil {
a.logger.Error("Security error while parsing configuration: %#v", err)
@ -1920,12 +2108,6 @@ func (a *Agent) ShutdownEndpoints() {
a.logger.Info("Endpoints down")
}
// ReloadCh is used to return a channel that can be
// used for triggering reloads and returning a response.
func (a *Agent) ReloadCh() chan chan error {
return a.reloadCh
}
// RetryJoinCh is a channel that transports errors
// from the retry join process.
func (a *Agent) RetryJoinCh() <-chan error {
@ -4099,14 +4281,40 @@ func (a *Agent) loadLimits(conf *config.RuntimeConfig) {
a.config.RPCMaxBurst = conf.RPCMaxBurst
}
// ReloadConfig will atomically reload all configs from the given newCfg,
// including all services, checks, tokens, metadata, dnsServer configs, etc.
// ReloadConfig will atomically reload all configuration, including
// all services, checks, tokens, metadata, dnsServer configs, etc.
// It will also reload all ongoing watches.
func (a *Agent) ReloadConfig(newCfg *config.RuntimeConfig) error {
func (a *Agent) ReloadConfig() error {
newCfg, err := a.autoConf.ReadConfig()
if err != nil {
return err
}
// copy over the existing node id, this cannot be
// changed while running anyways but this prevents
// breaking some existing behavior.
newCfg.NodeID = a.config.NodeID
return a.reloadConfigInternal(newCfg)
}
// reloadConfigInternal is mainly needed for some unit tests. Instead of parsing
// the configuration using CLI flags and on disk config, this just takes a
// runtime configuration and applies it.
func (a *Agent) reloadConfigInternal(newCfg *config.RuntimeConfig) error {
if err := a.CheckSecurity(newCfg); err != nil {
a.logger.Error("Security error while reloading configuration: %#v", err)
return err
}
// Change the log level and update it
if logging.ValidateLogLevel(newCfg.LogLevel) {
a.logger.SetLevel(logging.LevelFromString(newCfg.LogLevel))
} else {
a.logger.Warn("Invalid log level in new configuration", "level", newCfg.LogLevel)
newCfg.LogLevel = a.config.LogLevel
}
// Bulk update the services and checks
a.PauseSync()
defer a.ResumeSync()

16
agent/agent_endpoint.go
View File

@ -154,21 +154,7 @@ func (s *HTTPServer) AgentReload(resp http.ResponseWriter, req *http.Request) (i
return nil, acl.ErrPermissionDenied
}
// Trigger the reload
errCh := make(chan error)
select {
case <-s.agent.shutdownCh:
return nil, fmt.Errorf("Agent was shutdown before reload could be completed")
case s.agent.reloadCh <- errCh:
}
// Wait for the result of the reload, or for the agent to shutdown
select {
case <-s.agent.shutdownCh:
return nil, fmt.Errorf("Agent was shutdown before reload could be completed")
case err := <-errCh:
return nil, err
}
return nil, s.agent.ReloadConfig()
}
func buildAgentService(s *structs.NodeService) api.AgentService {

28
agent/agent_endpoint_test.go
View File

@ -501,7 +501,7 @@ func TestAgent_Service(t *testing.T) {
updateFunc: func() {
time.Sleep(100 * time.Millisecond)
// Reload
require.NoError(t, a.ReloadConfig(a.Config))
require.NoError(t, a.reloadConfigInternal(a.Config))
},
// Should eventually timeout since there is no actual change
wantWait: 200 * time.Millisecond,
@ -519,7 +519,7 @@ func TestAgent_Service(t *testing.T) {
// Reload
newConfig := *a.Config
newConfig.Services = append(newConfig.Services, &updatedProxy)
require.NoError(t, a.ReloadConfig(&newConfig))
require.NoError(t, a.reloadConfigInternal(&newConfig))
},
wantWait: 100 * time.Millisecond,
wantCode: 200,
@ -1352,7 +1352,7 @@ func TestAgent_Reload(t *testing.T) {
`,
})
if err := a.ReloadConfig(cfg2); err != nil {
if err := a.reloadConfigInternal(cfg2); err != nil {
t.Fatalf("got error %v want nil", err)
}
if a.State.Service(structs.NewServiceID("redis-reloaded", nil)) == nil {
@ -1505,7 +1505,7 @@ func TestAgent_ReloadDoesNotTriggerWatch(t *testing.T) {
// We check that reload does not go to critical
ensureNothingCritical(r, "red-is-dead")
if err := a.ReloadConfig(cfg2); err != nil {
if err := a.reloadConfigInternal(cfg2); err != nil {
t.Fatalf("got error %v want nil", err)
}
@ -5194,7 +5194,11 @@ func TestAgentConnectCALeafCert_good(t *testing.T) {
assert := assert.New(t)
require := require.New(t)
a := NewTestAgent(t, "")
a := StartTestAgent(t, TestAgent{Overrides: `
connect {
test_ca_leaf_root_change_spread = "1ns"
}
`})
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
testrpc.WaitForActiveCARoot(t, a.RPC, "dc1", nil)
@ -5297,7 +5301,11 @@ func TestAgentConnectCALeafCert_goodNotLocal(t *testing.T) {
assert := assert.New(t)
require := require.New(t)
a := NewTestAgent(t, "")
a := StartTestAgent(t, TestAgent{Overrides: `
connect {
test_ca_leaf_root_change_spread = "1ns"
}
`})
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
testrpc.WaitForActiveCARoot(t, a.RPC, "dc1", nil)
@ -5421,6 +5429,10 @@ func TestAgentConnectCALeafCert_secondaryDC_good(t *testing.T) {
a1 := StartTestAgent(t, TestAgent{Name: "dc1", HCL: `
datacenter = "dc1"
primary_datacenter = "dc1"
`, Overrides: `
connect {
test_ca_leaf_root_change_spread = "1ns"
}
`})
defer a1.Shutdown()
testrpc.WaitForTestAgent(t, a1.RPC, "dc1")
@ -5428,6 +5440,10 @@ func TestAgentConnectCALeafCert_secondaryDC_good(t *testing.T) {
a2 := StartTestAgent(t, TestAgent{Name: "dc2", HCL: `
datacenter = "dc2"
primary_datacenter = "dc1"
`, Overrides: `
connect {
test_ca_leaf_root_change_spread = "1ns"
}
`})
defer a2.Shutdown()
testrpc.WaitForTestAgent(t, a2.RPC, "dc2")

127
agent/agent_test.go
View File

@ -4,6 +4,7 @@ import (
"bytes"
"context"
"crypto/tls"
"encoding/base64"
"encoding/json"
"fmt"
"io/ioutil"
@ -26,6 +27,7 @@ import (
"github.com/hashicorp/consul/agent/connect"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/internal/go-sso/oidcauth/oidcauthtest"
"github.com/hashicorp/consul/ipaddr"
"github.com/hashicorp/consul/sdk/freeport"
"github.com/hashicorp/consul/sdk/testutil"
@ -36,6 +38,7 @@ import (
"github.com/hashicorp/serf/serf"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"gopkg.in/square/go-jose.v2/jwt"
)
func getService(a *TestAgent, id string) *structs.NodeService {
@ -338,7 +341,7 @@ func TestAgent_makeNodeID(t *testing.T) {
// Turn on host-based IDs and try again. We should get the same ID
// each time (and a different one from the random one above).
a.Config.DisableHostNodeID = false
a.GetConfig().DisableHostNodeID = false
id, err = a.makeNodeID()
if err != nil {
t.Fatalf("err: %v", err)
@ -2830,10 +2833,10 @@ func TestAgent_Service_MaintenanceMode(t *testing.T) {
func TestAgent_Service_Reap(t *testing.T) {
// t.Parallel() // timing test. no parallel
a := NewTestAgent(t, `
a := StartTestAgent(t, TestAgent{Overrides: `
check_reap_interval = "50ms"
check_deregister_interval_min = "0s"
`)
`})
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
@ -2885,10 +2888,10 @@ func TestAgent_Service_Reap(t *testing.T) {
func TestAgent_Service_NoReap(t *testing.T) {
// t.Parallel() // timing test. no parallel
a := NewTestAgent(t, `
a := StartTestAgent(t, TestAgent{Overrides: `
check_reap_interval = "50ms"
check_deregister_interval_min = "0s"
`)
`})
defer a.Shutdown()
svc := &structs.NodeService{
@ -3574,7 +3577,7 @@ func TestAgent_ReloadConfigOutgoingRPCConfig(t *testing.T) {
verify_server_hostname = true
`
c := TestConfig(testutil.Logger(t), config.Source{Name: t.Name(), Format: "hcl", Data: hcl})
require.NoError(t, a.ReloadConfig(c))
require.NoError(t, a.reloadConfigInternal(c))
tlsConf = a.tlsConfigurator.OutgoingRPCConfig()
require.False(t, tlsConf.InsecureSkipVerify)
require.Len(t, tlsConf.RootCAs.Subjects(), 2)
@ -3604,7 +3607,7 @@ func TestAgent_ReloadConfigAndKeepChecksStatus(t *testing.T) {
}
c := TestConfig(testutil.Logger(t), config.Source{Name: t.Name(), Format: "hcl", Data: hcl})
require.NoError(t, a.ReloadConfig(c))
require.NoError(t, a.reloadConfigInternal(c))
// After reload, should be passing directly (no critical state)
for id, check := range a.State.Checks(nil) {
require.Equal(t, "passing", check.Status, "check %q is wrong", id)
@ -3643,7 +3646,7 @@ func TestAgent_ReloadConfigIncomingRPCConfig(t *testing.T) {
verify_server_hostname = true
`
c := TestConfig(testutil.Logger(t), config.Source{Name: t.Name(), Format: "hcl", Data: hcl})
require.NoError(t, a.ReloadConfig(c))
require.NoError(t, a.reloadConfigInternal(c))
tlsConf, err = tlsConf.GetConfigForClient(nil)
require.NoError(t, err)
require.False(t, tlsConf.InsecureSkipVerify)
@ -3672,7 +3675,7 @@ func TestAgent_ReloadConfigTLSConfigFailure(t *testing.T) {
verify_incoming = true
`
c := TestConfig(testutil.Logger(t), config.Source{Name: t.Name(), Format: "hcl", Data: hcl})
require.Error(t, a.ReloadConfig(c))
require.Error(t, a.reloadConfigInternal(c))
tlsConf, err := tlsConf.GetConfigForClient(nil)
require.NoError(t, err)
require.Equal(t, tls.NoClientCert, tlsConf.ClientAuth)
@ -4546,3 +4549,109 @@ func TestAgent_JoinWAN_viaMeshGateway(t *testing.T) {
}
}
}
func TestAutoConfig_Integration(t *testing.T) {
// eventually this test should really live with integration tests
// the goal here is to have one test server and another test client
// spin up both agents and allow the server to authorize the auto config
// request and then see the client joined
cfgDir := testutil.TempDir(t, "auto-config")
// write some test TLS certificates out to the cfg dir
cert, key, cacert, err := testTLSCertificates("server.dc1.consul")
require.NoError(t, err)
certFile := filepath.Join(cfgDir, "cert.pem")
caFile := filepath.Join(cfgDir, "cacert.pem")
keyFile := filepath.Join(cfgDir, "key.pem")
require.NoError(t, ioutil.WriteFile(certFile, []byte(cert), 0600))
require.NoError(t, ioutil.WriteFile(caFile, []byte(cacert), 0600))
require.NoError(t, ioutil.WriteFile(keyFile, []byte(key), 0600))
// generate a gossip key
gossipKey := make([]byte, 32)
n, err := rand.Read(gossipKey)
require.NoError(t, err)
require.Equal(t, 32, n)
gossipKeyEncoded := base64.StdEncoding.EncodeToString(gossipKey)
// generate the JWT signing keys
pub, priv, err := oidcauthtest.GenerateKey()
require.NoError(t, err)
hclConfig := TestACLConfigWithParams(nil) + `
encrypt = "` + gossipKeyEncoded + `"
encrypt_verify_incoming = true
encrypt_verify_outgoing = true
verify_incoming = true
verify_outgoing = true
verify_server_hostname = true
ca_file = "` + caFile + `"
cert_file = "` + certFile + `"
key_file = "` + keyFile + `"
connect { enabled = true }
auto_encrypt { allow_tls = true }
auto_config {
authorizer {
enabled = true
claim_mappings = {
consul_node_name = "node"
}
claim_assertions = [
"value.node == \"${node}\""
]
bound_issuer = "consul"
bound_audiences = [
"consul"
]
jwt_validation_pub_keys = ["` + strings.ReplaceAll(pub, "\n", "\\n") + `"]
}
}
`
srv := StartTestAgent(t, TestAgent{Name: "TestAgent-Server", HCL: hclConfig})
defer srv.Shutdown()
testrpc.WaitForTestAgent(t, srv.RPC, "dc1", testrpc.WithToken(TestDefaultMasterToken))
// sign a JWT token
now := time.Now()
token, err := oidcauthtest.SignJWT(priv, jwt.Claims{
Subject: "consul",
Issuer: "consul",
Audience: jwt.Audience{"consul"},
NotBefore: jwt.NewNumericDate(now.Add(-1 * time.Second)),
Expiry: jwt.NewNumericDate(now.Add(5 * time.Minute)),
}, map[string]interface{}{
"consul_node_name": "test-client",
})
require.NoError(t, err)
client := StartTestAgent(t, TestAgent{Name: "test-client", HCL: TestACLConfigWithParams(nil) + `
bootstrap = false
server = false
ca_file = "` + caFile + `"
verify_outgoing = true
verify_server_hostname = true
node_name = "test-client"
ports {
server = ` + strconv.Itoa(srv.Config.RPCBindAddr.Port) + `
}
auto_config {
enabled = true
intro_token = "` + token + `"
server_addresses = ["` + srv.Config.RPCBindAddr.String() + `"]
}`})
defer client.Shutdown()
// when this is successful we managed to get the gossip key and serf addresses to bind to
// and then connect. Additionally we would have to have certificates or else the
// verify_incoming config on the server would not let it work.
testrpc.WaitForTestAgent(t, client.RPC, "dc1", testrpc.WithToken(TestDefaultMasterToken))
// spot check that we now have an ACL token
require.NotEmpty(t, client.tokens.AgentToken())
}

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package autoconf
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"net"
"os"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/hashicorp/consul/agent/agentpb"
"github.com/hashicorp/consul/agent/config"
"github.com/hashicorp/consul/lib"
"github.com/hashicorp/consul/logging"
"github.com/hashicorp/consul/tlsutil"
"github.com/hashicorp/go-discover"
discoverk8s "github.com/hashicorp/go-discover/provider/k8s"
"github.com/hashicorp/go-hclog"
)
const (
// autoConfigFileName is the name of the file that the agent auto-config settings are
// stored in within the data directory
autoConfigFileName = "auto-config.json"
)
// DirectRPC is the interface that needs to be satisifed for AutoConfig to be able to perform
// direct RPCs against individual servers. This should not use
type DirectRPC interface {
RPC(dc string, node string, addr net.Addr, method string, args interface{}, reply interface{}) error
}
type options struct {
logger hclog.Logger
directRPC DirectRPC
tlsConfigurator *tlsutil.Configurator
builderOpts config.BuilderOpts
waiter *lib.RetryWaiter
overrides []config.Source
}
// Option represents one point of configurability for the New function
// when creating a new AutoConfig object
type Option func(*options)
// WithLogger will cause the created AutoConfig type to use the provided logger
func WithLogger(logger hclog.Logger) Option {
return func(opt *options) {
opt.logger = logger
}
}
// WithTLSConfigurator will cause the created AutoConfig type to use the provided configurator
func WithTLSConfigurator(tlsConfigurator *tlsutil.Configurator) Option {
return func(opt *options) {
opt.tlsConfigurator = tlsConfigurator
}
}
// WithConnectionPool will cause the created AutoConfig type to use the provided connection pool
func WithDirectRPC(directRPC DirectRPC) Option {
return func(opt *options) {
opt.directRPC = directRPC
}
}
// WithBuilderOpts will cause the created AutoConfig type to use the provided CLI builderOpts
func WithBuilderOpts(builderOpts config.BuilderOpts) Option {
return func(opt *options) {
opt.builderOpts = builderOpts
}
}
// WithRetryWaiter will cause the created AutoConfig type to use the provided retry waiter
func WithRetryWaiter(waiter *lib.RetryWaiter) Option {
return func(opt *options) {
opt.waiter = waiter
}
}
// WithOverrides is used to provide a config source to append to the tail sources
// during config building. It is really only useful for testing to tune non-user
// configurable tunables to make various tests converge more quickly than they
// could otherwise.
func WithOverrides(overrides ...config.Source) Option {
return func(opt *options) {
opt.overrides = overrides
}
}
// AutoConfig is all the state necessary for being able to parse a configuration
// as well as perform the necessary RPCs to perform Agent Auto Configuration.
//
// NOTE: This struct and methods on it are not currently thread/goroutine safe.
// However it doesn't spawn any of its own go routines yet and is used in a
// synchronous fashion. In the future if either of those two conditions change
// then we will need to add some locking here. I am deferring that for now
// to help ease the review of this already large PR.
type AutoConfig struct {
config *config.RuntimeConfig
builderOpts config.BuilderOpts
logger hclog.Logger
directRPC DirectRPC
tlsConfigurator *tlsutil.Configurator
autoConfigData string
waiter *lib.RetryWaiter
overrides []config.Source
}
func flattenOptions(opts []Option) options {
var flat options
for _, opt := range opts {
opt(&flat)
}
return flat
}
// New creates a new AutoConfig object for providing automatic
// Consul configuration.
func New(options ...Option) (*AutoConfig, error) {
flat := flattenOptions(options)
if flat.directRPC == nil {
return nil, fmt.Errorf("must provide a direct RPC delegate")
}
if flat.tlsConfigurator == nil {
return nil, fmt.Errorf("must provide a TLS configurator")
}
logger := flat.logger
if logger == nil {
logger = hclog.NewNullLogger()
} else {
logger = logger.Named(logging.AutoConfig)
}
waiter := flat.waiter
if waiter == nil {
waiter = lib.NewRetryWaiter(1, 0, 10*time.Minute, lib.NewJitterRandomStagger(25))
}
ac := &AutoConfig{
builderOpts: flat.builderOpts,
logger: logger,
directRPC: flat.directRPC,
tlsConfigurator: flat.tlsConfigurator,
waiter: waiter,
overrides: flat.overrides,
}
return ac, nil
}
// LoadConfig will build the configuration including the extraHead source injected
// after all other defaults but before any user supplied configuration and the overrides
// source injected as the final source in the configuration parsing chain.
func LoadConfig(builderOpts config.BuilderOpts, extraHead config.Source, overrides ...config.Source) (*config.RuntimeConfig, []string, error) {
b, err := config.NewBuilder(builderOpts)
if err != nil {
return nil, nil, err
}
if extraHead.Data != "" {
b.Head = append(b.Head, extraHead)
}
if len(overrides) != 0 {
b.Tail = append(b.Tail, overrides...)
}
cfg, err := b.BuildAndValidate()
if err != nil {
return nil, nil, err
}
return &cfg, b.Warnings, nil
}
// ReadConfig will parse the current configuration and inject any
// auto-config sources if present into the correct place in the parsing chain.
func (ac *AutoConfig) ReadConfig() (*config.RuntimeConfig, error) {
src := config.Source{
Name: autoConfigFileName,
Format: "json",
Data: ac.autoConfigData,
}
cfg, warnings, err := LoadConfig(ac.builderOpts, src, ac.overrides...)
if err != nil {
return cfg, err
}
for _, w := range warnings {
ac.logger.Warn(w)
}
ac.config = cfg
return cfg, nil
}
// restorePersistedAutoConfig will attempt to load the persisted auto-config
// settings from the data directory. It returns true either when there was an
// unrecoverable error or when the configuration was successfully loaded from
// disk. Recoverable errors, such as "file not found" are suppressed and this
// method will return false for the first boolean.
func (ac *AutoConfig) restorePersistedAutoConfig() (bool, error) {
if ac.config.DataDir == "" {
// no data directory means we don't have anything to potentially load
return false, nil
}
path := filepath.Join(ac.config.DataDir, autoConfigFileName)
ac.logger.Debug("attempting to restore any persisted configuration", "path", path)
content, err := ioutil.ReadFile(path)
if err == nil {
ac.logger.Info("restored persisted configuration", "path", path)
ac.autoConfigData = string(content)
return true, nil
}
if !os.IsNotExist(err) {
return true, fmt.Errorf("failed to load %s: %w", path, err)
}
// ignore non-existence errors as that is an indicator that we haven't
// performed the auto configuration before
return false, nil
}
// InitialConfiguration will perform a one-time RPC request to the configured servers
// to retrieve various cluster wide configurations. See the agent/agentpb/auto_config.proto
// file for a complete reference of what configurations can be applied in this manner.
// The returned configuration will be the new configuration with any auto-config settings
// already applied. If AutoConfig is not enabled this method will just parse any
// local configuration and return the built runtime configuration.
//
// The context passed in can be used to cancel the retrieval of the initial configuration
// like when receiving a signal during startup.
func (ac *AutoConfig) InitialConfiguration(ctx context.Context) (*config.RuntimeConfig, error) {
if ac.config == nil {
config, err := ac.ReadConfig()
if err != nil {
return nil, err
}
ac.config = config
}
if !ac.config.AutoConfig.Enabled {
return ac.config, nil
}
ready, err := ac.restorePersistedAutoConfig()
if err != nil {
return nil, err
}
if !ready {
if err := ac.getInitialConfiguration(ctx); err != nil {
return nil, err
}
}
// re-read the configuration now that we have our initial auto-config
config, err := ac.ReadConfig()
if err != nil {
return nil, err
}
ac.config = config
return ac.config, nil
}
// introToken is responsible for determining the correct intro token to use
// when making the initial Cluster.AutoConfig RPC request.
func (ac *AutoConfig) introToken() (string, error) {
conf := ac.config.AutoConfig
// without an intro token or intro token file we cannot do anything
if conf.IntroToken == "" && conf.IntroTokenFile == "" {
return "", fmt.Errorf("neither intro_token or intro_token_file settings are not configured")
}
token := conf.IntroToken
if token == "" {
// load the intro token from the file
content, err := ioutil.ReadFile(conf.IntroTokenFile)
if err != nil {
return "", fmt.Errorf("Failed to read intro token from file: %w", err)
}
token = string(content)
if token == "" {
return "", fmt.Errorf("intro_token_file did not contain any token")
}
}
return token, nil
}
// autoConfigHosts is responsible for taking the list of server addresses and
// resolving any go-discover provider invocations. It will then return a list
// of hosts. These might be hostnames and is expected that DNS resolution may
// be performed after this function runs. Additionally these may contain ports
// so SplitHostPort could also be necessary.
func (ac *AutoConfig) autoConfigHosts() ([]string, error) {
servers := ac.config.AutoConfig.ServerAddresses
providers := make(map[string]discover.Provider)
for k, v := range discover.Providers {
providers[k] = v
}
providers["k8s"] = &discoverk8s.Provider{}
disco, err := discover.New(
discover.WithUserAgent(lib.UserAgent()),
discover.WithProviders(providers),
)
if err != nil {
return nil, fmt.Errorf("Failed to create go-discover resolver: %w", err)
}
var addrs []string
for _, addr := range servers {
switch {
case strings.Contains(addr, "provider="):
resolved, err := disco.Addrs(addr, ac.logger.StandardLogger(&hclog.StandardLoggerOptions{InferLevels: true}))
if err != nil {
ac.logger.Error("failed to resolve go-discover auto-config servers", "configuration", addr, "err", err)
continue
}
addrs = append(addrs, resolved...)
ac.logger.Debug("discovered auto-config servers", "servers", resolved)
default:
addrs = append(addrs, addr)
}
}
if len(addrs) == 0 {
return nil, fmt.Errorf("no auto-config server addresses available for use")
}
return addrs, nil
}
// resolveHost will take a single host string and convert it to a list of TCPAddrs
// This will process any port in the input as well as looking up the hostname using
// normal DNS resolution.
func (ac *AutoConfig) resolveHost(hostPort string) []net.TCPAddr {
port := ac.config.ServerPort
host, portStr, err := net.SplitHostPort(hostPort)
if err != nil {
if strings.Contains(err.Error(), "missing port in address") {
host = hostPort
} else {
ac.logger.Warn("error splitting host address into IP and port", "address", hostPort, "error", err)
return nil
}
} else {
port, err = strconv.Atoi(portStr)
if err != nil {
ac.logger.Warn("Parsed port is not an integer", "port", portStr, "error", err)
return nil
}
}
// resolve the host to a list of IPs
ips, err := net.LookupIP(host)
if err != nil {
ac.logger.Warn("IP resolution failed", "host", host, "error", err)
return nil
}
var addrs []net.TCPAddr
for _, ip := range ips {
addrs = append(addrs, net.TCPAddr{IP: ip, Port: port})
}
return addrs
}
// recordAutoConfigReply takes an AutoConfig RPC reply records it with the agent
// This will persist the configuration to disk (unless in dev mode running without
// a data dir) and will reload the configuration.
func (ac *AutoConfig) recordAutoConfigReply(reply *agentpb.AutoConfigResponse) error {
conf, err := json.Marshal(translateConfig(reply.Config))
if err != nil {
return fmt.Errorf("failed to encode auto-config configuration as JSON: %w", err)
}
ac.autoConfigData = string(conf)
if ac.config.DataDir == "" {
ac.logger.Debug("not persisting auto-config settings because there is no data directory")
return nil
}
path := filepath.Join(ac.config.DataDir, autoConfigFileName)
err = ioutil.WriteFile(path, conf, 0660)
if err != nil {
return fmt.Errorf("failed to write auto-config configurations: %w", err)
}
ac.logger.Debug("auto-config settings were persisted to disk")
return nil
}
// getInitialConfigurationOnce will perform full server to TCPAddr resolution and
// loop through each host trying to make the Cluster.AutoConfig RPC call. When
// successful the bool return will be true and the err value will indicate whether we
// successfully recorded the auto config settings (persisted to disk and stored internally
// on the AutoConfig object)
func (ac *AutoConfig) getInitialConfigurationOnce(ctx context.Context) (bool, error) {
token, err := ac.introToken()
if err != nil {
return false, err
}
request := agentpb.AutoConfigRequest{
Datacenter: ac.config.Datacenter,
Node: ac.config.NodeName,
Segment: ac.config.SegmentName,
JWT: token,
}
var reply agentpb.AutoConfigResponse
servers, err := ac.autoConfigHosts()
if err != nil {
return false, err
}
for _, s := range servers {
// try each IP to see if we can successfully make the request
for _, addr := range ac.resolveHost(s) {
if ctx.Err() != nil {
return false, ctx.Err()
}
ac.logger.Debug("Making Cluster.AutoConfig RPC", "addr", addr.String())
if err = ac.directRPC.RPC(ac.config.Datacenter, ac.config.NodeName, &addr, "Cluster.AutoConfig", &request, &reply); err != nil {
ac.logger.Error("AutoConfig RPC failed", "addr", addr.String(), "error", err)
continue
}
return true, ac.recordAutoConfigReply(&reply)
}
}
return false, nil
}
// getInitialConfiguration implements a loop to retry calls to getInitialConfigurationOnce.
// It uses the RetryWaiter on the AutoConfig object to control how often to attempt
// the initial configuration process. It is also canceallable by cancelling the provided context.
func (ac *AutoConfig) getInitialConfiguration(ctx context.Context) error {
// this resets the failures so that we will perform immediate request
wait := ac.waiter.Success()
for {
select {
case <-wait:
if done, err := ac.getInitialConfigurationOnce(ctx); done {
return err
}
wait = ac.waiter.Failed()
case <-ctx.Done():
return ctx.Err()
}
}
}

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package autoconf
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"net"
"os"
"path/filepath"
"testing"
"time"
"github.com/hashicorp/consul/agent/agentpb"
pbconfig "github.com/hashicorp/consul/agent/agentpb/config"
"github.com/hashicorp/consul/agent/config"
"github.com/hashicorp/consul/lib"
"github.com/hashicorp/consul/sdk/testutil"
"github.com/hashicorp/consul/tlsutil"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
)
type mockDirectRPC struct {
mock.Mock
}
func (m *mockDirectRPC) RPC(dc string, node string, addr net.Addr, method string, args interface{}, reply interface{}) error {
retValues := m.Called(dc, node, addr, method, args, reply)
switch ret := retValues.Get(0).(type) {
case error:
return ret
case func(interface{}):
ret(reply)
return nil
default:
return fmt.Errorf("This should not happen, update mock direct rpc expectations")
}
}
func TestNew(t *testing.T) {
type testCase struct {
opts []Option
err string
validate func(t *testing.T, ac *AutoConfig)
}
cases := map[string]testCase{
"no-direct-rpc": {
opts: []Option{
WithTLSConfigurator(&tlsutil.Configurator{}),
},
err: "must provide a direct RPC delegate",
},
"no-tls-configurator": {
opts: []Option{
WithDirectRPC(&mockDirectRPC{}),
},
err: "must provide a TLS configurator",
},
"ok": {
opts: []Option{
WithTLSConfigurator(&tlsutil.Configurator{}),
WithDirectRPC(&mockDirectRPC{}),
},
validate: func(t *testing.T, ac *AutoConfig) {
t.Helper()
require.NotNil(t, ac.logger)
},
},
}
for name, tcase := range cases {
t.Run(name, func(t *testing.T) {
ac, err := New(tcase.opts...)
if tcase.err != "" {
testutil.RequireErrorContains(t, err, tcase.err)
} else {
require.NoError(t, err)
require.NotNil(t, ac)
if tcase.validate != nil {
tcase.validate(t, ac)
}
}
})
}
}
func TestLoadConfig(t *testing.T) {
// Basically just testing that injection of the extra
// source works.
devMode := true
builderOpts := config.BuilderOpts{
// putting this in dev mode so that the config validates
// without having to specify a data directory
DevMode: &devMode,
}
cfg, warnings, err := LoadConfig(builderOpts, config.Source{
Name: "test",
Format: "hcl",
Data: `node_name = "hobbiton"`,
},
config.Source{
Name: "overrides",
Format: "json",
Data: `{"check_reap_interval": "1ms"}`,
})
require.NoError(t, err)
require.Empty(t, warnings)
require.NotNil(t, cfg)
require.Equal(t, "hobbiton", cfg.NodeName)
require.Equal(t, 1*time.Millisecond, cfg.CheckReapInterval)
}
func TestReadConfig(t *testing.T) {
// just testing that some auto config source gets injected
devMode := true
ac := AutoConfig{
autoConfigData: `{"node_name": "hobbiton"}`,
builderOpts: config.BuilderOpts{
// putting this in dev mode so that the config validates
// without having to specify a data directory
DevMode: &devMode,
},
logger: testutil.Logger(t),
}
cfg, err := ac.ReadConfig()
require.NoError(t, err)
require.NotNil(t, cfg)
require.Equal(t, "hobbiton", cfg.NodeName)
require.Same(t, ac.config, cfg)
}
func testSetupAutoConf(t *testing.T) (string, string, config.BuilderOpts) {
t.Helper()
// create top level directory to hold both config and data
tld := testutil.TempDir(t, "auto-config")
t.Cleanup(func() { os.RemoveAll(tld) })
// create the data directory
dataDir := filepath.Join(tld, "data")
require.NoError(t, os.Mkdir(dataDir, 0700))
// create the config directory
configDir := filepath.Join(tld, "config")
require.NoError(t, os.Mkdir(configDir, 0700))
builderOpts := config.BuilderOpts{
HCL: []string{
`data_dir = "` + dataDir + `"`,
`datacenter = "dc1"`,
`node_name = "autoconf"`,
`bind_addr = "127.0.0.1"`,
},
}
return dataDir, configDir, builderOpts
}
func TestInitialConfiguration_disabled(t *testing.T) {
dataDir, configDir, builderOpts := testSetupAutoConf(t)
cfgFile := filepath.Join(configDir, "test.json")
require.NoError(t, ioutil.WriteFile(cfgFile, []byte(`{
"primary_datacenter": "primary",
"auto_config": {"enabled": false}
}`), 0600))
builderOpts.ConfigFiles = append(builderOpts.ConfigFiles, cfgFile)
directRPC := mockDirectRPC{}
ac, err := New(WithBuilderOpts(builderOpts), WithTLSConfigurator(&tlsutil.Configurator{}), WithDirectRPC(&directRPC))
require.NoError(t, err)
require.NotNil(t, ac)
cfg, err := ac.InitialConfiguration(context.Background())
require.NoError(t, err)
require.NotNil(t, cfg)
require.Equal(t, "primary", cfg.PrimaryDatacenter)
require.NoFileExists(t, filepath.Join(dataDir, autoConfigFileName))
// ensure no RPC was made
directRPC.AssertExpectations(t)
}
func TestInitialConfiguration_cancelled(t *testing.T) {
_, configDir, builderOpts := testSetupAutoConf(t)
cfgFile := filepath.Join(configDir, "test.json")
require.NoError(t, ioutil.WriteFile(cfgFile, []byte(`{
"primary_datacenter": "primary",
"auto_config": {"enabled": true, "intro_token": "blarg", "server_addresses": ["127.0.0.1:8300"]}
}`), 0600))
builderOpts.ConfigFiles = append(builderOpts.ConfigFiles, cfgFile)
directRPC := mockDirectRPC{}
expectedRequest := agentpb.AutoConfigRequest{
Datacenter: "dc1",
Node: "autoconf",
JWT: "blarg",
}
directRPC.On("RPC", "dc1", "autoconf", &net.TCPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 8300}, "Cluster.AutoConfig", &expectedRequest, mock.Anything).Return(fmt.Errorf("injected error")).Times(0)
ac, err := New(WithBuilderOpts(builderOpts), WithTLSConfigurator(&tlsutil.Configurator{}), WithDirectRPC(&directRPC))
require.NoError(t, err)
require.NotNil(t, ac)
ctx, cancelFn := context.WithDeadline(context.Background(), time.Now().Add(100*time.Millisecond))
defer cancelFn()
cfg, err := ac.InitialConfiguration(ctx)
testutil.RequireErrorContains(t, err, context.DeadlineExceeded.Error())
require.Nil(t, cfg)
// ensure no RPC was made
directRPC.AssertExpectations(t)
}
func TestInitialConfiguration_restored(t *testing.T) {
dataDir, configDir, builderOpts := testSetupAutoConf(t)
cfgFile := filepath.Join(configDir, "test.json")
require.NoError(t, ioutil.WriteFile(cfgFile, []byte(`{
"auto_config": {"enabled": true, "intro_token": "blarg", "server_addresses": ["127.0.0.1:8300"]}
}`), 0600))
builderOpts.ConfigFiles = append(builderOpts.ConfigFiles, cfgFile)
// persist an auto config response to the data dir where it is expected
persistedFile := filepath.Join(dataDir, autoConfigFileName)
response := &pbconfig.Config{
PrimaryDatacenter: "primary",
}
data, err := json.Marshal(translateConfig(response))
require.NoError(t, err)
require.NoError(t, ioutil.WriteFile(persistedFile, data, 0600))
directRPC := mockDirectRPC{}
ac, err := New(WithBuilderOpts(builderOpts), WithTLSConfigurator(&tlsutil.Configurator{}), WithDirectRPC(&directRPC))
require.NoError(t, err)
require.NotNil(t, ac)
cfg, err := ac.InitialConfiguration(context.Background())
require.NoError(t, err)
require.NotNil(t, cfg)
require.Equal(t, "primary", cfg.PrimaryDatacenter)
// ensure no RPC was made
directRPC.AssertExpectations(t)
}
func TestInitialConfiguration_success(t *testing.T) {
dataDir, configDir, builderOpts := testSetupAutoConf(t)
cfgFile := filepath.Join(configDir, "test.json")
require.NoError(t, ioutil.WriteFile(cfgFile, []byte(`{
"auto_config": {"enabled": true, "intro_token": "blarg", "server_addresses": ["127.0.0.1:8300"]}
}`), 0600))
builderOpts.ConfigFiles = append(builderOpts.ConfigFiles, cfgFile)
persistedFile := filepath.Join(dataDir, autoConfigFileName)
directRPC := mockDirectRPC{}
populateResponse := func(val interface{}) {
resp, ok := val.(*agentpb.AutoConfigResponse)
require.True(t, ok)
resp.Config = &pbconfig.Config{
PrimaryDatacenter: "primary",
}
}
expectedRequest := agentpb.AutoConfigRequest{
Datacenter: "dc1",
Node: "autoconf",
JWT: "blarg",
}
directRPC.On(
"RPC",
"dc1",
"autoconf",
&net.TCPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 8300},
"Cluster.AutoConfig",
&expectedRequest,
&agentpb.AutoConfigResponse{}).Return(populateResponse)
ac, err := New(WithBuilderOpts(builderOpts), WithTLSConfigurator(&tlsutil.Configurator{}), WithDirectRPC(&directRPC))
require.NoError(t, err)
require.NotNil(t, ac)
cfg, err := ac.InitialConfiguration(context.Background())
require.NoError(t, err)
require.NotNil(t, cfg)
require.Equal(t, "primary", cfg.PrimaryDatacenter)
// the file was written to.
require.FileExists(t, persistedFile)
// ensure no RPC was made
directRPC.AssertExpectations(t)
}
func TestInitialConfiguration_retries(t *testing.T) {
dataDir, configDir, builderOpts := testSetupAutoConf(t)
cfgFile := filepath.Join(configDir, "test.json")
require.NoError(t, ioutil.WriteFile(cfgFile, []byte(`{
"auto_config": {"enabled": true, "intro_token": "blarg", "server_addresses": ["198.18.0.1", "198.18.0.2:8398", "198.18.0.3:8399", "127.0.0.1:1234"]}
}`), 0600))
builderOpts.ConfigFiles = append(builderOpts.ConfigFiles, cfgFile)
persistedFile := filepath.Join(dataDir, autoConfigFileName)
directRPC := mockDirectRPC{}
populateResponse := func(val interface{}) {
resp, ok := val.(*agentpb.AutoConfigResponse)
require.True(t, ok)
resp.Config = &pbconfig.Config{
PrimaryDatacenter: "primary",
}
}
expectedRequest := agentpb.AutoConfigRequest{
Datacenter: "dc1",
Node: "autoconf",
JWT: "blarg",
}
// basically the 198.18.0.* addresses should fail indefinitely. the first time through the
// outer loop we inject a failure for the DNS resolution of localhost to 127.0.0.1. Then
// the second time through the outer loop we allow the localhost one to work.
directRPC.On(
"RPC",
"dc1",
"autoconf",
&net.TCPAddr{IP: net.IPv4(198, 18, 0, 1), Port: 8300},
"Cluster.AutoConfig",
&expectedRequest,
&agentpb.AutoConfigResponse{}).Return(fmt.Errorf("injected failure")).Times(0)
directRPC.On(
"RPC",
"dc1",
"autoconf",
&net.TCPAddr{IP: net.IPv4(198, 18, 0, 2), Port: 8398},
"Cluster.AutoConfig",
&expectedRequest,
&agentpb.AutoConfigResponse{}).Return(fmt.Errorf("injected failure")).Times(0)
directRPC.On(
"RPC",
"dc1",
"autoconf",
&net.TCPAddr{IP: net.IPv4(198, 18, 0, 3), Port: 8399},
"Cluster.AutoConfig",
&expectedRequest,
&agentpb.AutoConfigResponse{}).Return(fmt.Errorf("injected failure")).Times(0)
directRPC.On(
"RPC",
"dc1",
"autoconf",
&net.TCPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 1234},
"Cluster.AutoConfig",
&expectedRequest,
&agentpb.AutoConfigResponse{}).Return(fmt.Errorf("injected failure")).Once()
directRPC.On(
"RPC",
"dc1",
"autoconf",
&net.TCPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 1234},
"Cluster.AutoConfig",
&expectedRequest,
&agentpb.AutoConfigResponse{}).Return(populateResponse)
waiter := lib.NewRetryWaiter(2, 0, 1*time.Millisecond, nil)
ac, err := New(WithBuilderOpts(builderOpts), WithTLSConfigurator(&tlsutil.Configurator{}), WithDirectRPC(&directRPC), WithRetryWaiter(waiter))
require.NoError(t, err)
require.NotNil(t, ac)
cfg, err := ac.InitialConfiguration(context.Background())
require.NoError(t, err)
require.NotNil(t, cfg)
require.Equal(t, "primary", cfg.PrimaryDatacenter)
// the file was written to.
require.FileExists(t, persistedFile)
// ensure no RPC was made
directRPC.AssertExpectations(t)
}

93
agent/auto-config/config_translate.go Normal file
View File

@ -0,0 +1,93 @@
package autoconf
import (
pbconfig "github.com/hashicorp/consul/agent/agentpb/config"
"github.com/hashicorp/consul/agent/config"
)
// translateAgentConfig is meant to take in a agent/agentpb/config.Config type
// and craft the corresponding agent/config.Config type. The need for this function
// should eventually be removed with the protobuf and normal version converging.
// In the meantime, its not desirable to have the flatter Config struct in protobufs
// as in the long term we want a configuration with more nested groupings.
//
// Why is this function not in the agent/agentpb/config package? The answer, that
// package cannot import the agent/config package without running into import cycles.
func translateConfig(c *pbconfig.Config) *config.Config {
out := config.Config{
Datacenter: &c.Datacenter,
PrimaryDatacenter: &c.PrimaryDatacenter,
NodeName: &c.NodeName,
SegmentName: &c.SegmentName,
}
// Translate Auto Encrypt settings
if a := c.AutoEncrypt; a != nil {
out.AutoEncrypt = config.AutoEncrypt{
TLS: &a.TLS,
DNSSAN: a.DNSSAN,
IPSAN: a.IPSAN,
AllowTLS: &a.AllowTLS,
}
}
// Translate all the ACL settings
if a := c.ACL; a != nil {
out.ACL = config.ACL{
Enabled: &a.Enabled,
PolicyTTL: &a.PolicyTTL,
RoleTTL: &a.RoleTTL,
TokenTTL: &a.TokenTTL,
DownPolicy: &a.DownPolicy,
DefaultPolicy: &a.DefaultPolicy,
EnableKeyListPolicy: &a.EnableKeyListPolicy,
DisabledTTL: &a.DisabledTTL,
EnableTokenPersistence: &a.EnableTokenPersistence,
MSPDisableBootstrap: &a.MSPDisableBootstrap,
}
if t := c.ACL.Tokens; t != nil {
var tokens []config.ServiceProviderToken
// create the slice of msp tokens if any
for _, mspToken := range t.ManagedServiceProvider {
tokens = append(tokens, config.ServiceProviderToken{
AccessorID: &mspToken.AccessorID,
SecretID: &mspToken.SecretID,
})
}
out.ACL.Tokens = config.Tokens{
Master: &t.Master,
Replication: &t.Replication,
AgentMaster: &t.AgentMaster,
Default: &t.Default,
Agent: &t.Agent,
ManagedServiceProvider: tokens,
}
}
}
// Translate the Gossip settings
if g := c.Gossip; g != nil {
out.RetryJoinLAN = g.RetryJoinLAN
// Translate the Gossip Encryption settings
if e := c.Gossip.Encryption; e != nil {
out.EncryptKey = &e.Key
out.EncryptVerifyIncoming = &e.VerifyIncoming
out.EncryptVerifyOutgoing = &e.VerifyOutgoing
}
}
// Translate the Generic TLS settings
if t := c.TLS; t != nil {
out.VerifyOutgoing = &t.VerifyOutgoing
out.VerifyServerHostname = &t.VerifyServerHostname
out.TLSMinVersion = &t.MinVersion
out.TLSCipherSuites = &t.CipherSuites
out.TLSPreferServerCipherSuites = &t.PreferServerCipherSuites
}
return &out
}

122
agent/auto-config/config_translate_test.go Normal file
View File

@ -0,0 +1,122 @@
package autoconf
import (
"testing"
pbconfig "github.com/hashicorp/consul/agent/agentpb/config"
"github.com/hashicorp/consul/agent/config"
"github.com/stretchr/testify/require"
)
func stringPointer(s string) *string {
return &s
}
func boolPointer(b bool) *bool {
return &b
}
func TestConfig_translateConfig(t *testing.T) {
original := pbconfig.Config{
Datacenter: "abc",
PrimaryDatacenter: "def",
NodeName: "ghi",
SegmentName: "jkl",
ACL: &pbconfig.ACL{
Enabled: true,
PolicyTTL: "1s",
RoleTTL: "2s",
TokenTTL: "3s",
DownPolicy: "deny",
DefaultPolicy: "deny",
EnableKeyListPolicy: true,
DisabledTTL: "4s",
EnableTokenPersistence: true,
MSPDisableBootstrap: false,
Tokens: &pbconfig.ACLTokens{
Master: "99e7e490-6baf-43fc-9010-78b6aa9a6813",
Replication: "51308d40-465c-4ac6-a636-7c0747edec89",
AgentMaster: "e012e1ea-78a2-41cc-bc8b-231a44196f39",
Default: "8781a3f5-de46-4b45-83e1-c92f4cfd0332",
Agent: "ddb8f1b0-8a99-4032-b601-87926bce244e",
ManagedServiceProvider: []*pbconfig.ACLServiceProviderToken{
{
AccessorID: "23f37987-7b9e-4e5b-acae-dbc9bc137bae",
SecretID: "e28b820a-438e-4e2b-ad24-fe59e6a4914f",
},
},
},
},
AutoEncrypt: &pbconfig.AutoEncrypt{
TLS: true,
DNSSAN: []string{"dns"},
IPSAN: []string{"198.18.0.1"},
AllowTLS: false,
},
Gossip: &pbconfig.Gossip{
RetryJoinLAN: []string{"10.0.0.1"},
Encryption: &pbconfig.GossipEncryption{
Key: "blarg",
VerifyOutgoing: true,
VerifyIncoming: true,
},
},
TLS: &pbconfig.TLS{
VerifyOutgoing: true,
VerifyServerHostname: true,
CipherSuites: "stuff",
MinVersion: "tls13",
PreferServerCipherSuites: true,
},
}
expected := &config.Config{
Datacenter: stringPointer("abc"),
PrimaryDatacenter: stringPointer("def"),
NodeName: stringPointer("ghi"),
SegmentName: stringPointer("jkl"),
RetryJoinLAN: []string{"10.0.0.1"},
EncryptKey: stringPointer("blarg"),
EncryptVerifyIncoming: boolPointer(true),
EncryptVerifyOutgoing: boolPointer(true),
VerifyOutgoing: boolPointer(true),
VerifyServerHostname: boolPointer(true),
TLSCipherSuites: stringPointer("stuff"),
TLSMinVersion: stringPointer("tls13"),
TLSPreferServerCipherSuites: boolPointer(true),
ACL: config.ACL{
Enabled: boolPointer(true),
PolicyTTL: stringPointer("1s"),
RoleTTL: stringPointer("2s"),
TokenTTL: stringPointer("3s"),
DownPolicy: stringPointer("deny"),
DefaultPolicy: stringPointer("deny"),
EnableKeyListPolicy: boolPointer(true),
DisabledTTL: stringPointer("4s"),
EnableTokenPersistence: boolPointer(true),
MSPDisableBootstrap: boolPointer(false),
Tokens: config.Tokens{
Master: stringPointer("99e7e490-6baf-43fc-9010-78b6aa9a6813"),
Replication: stringPointer("51308d40-465c-4ac6-a636-7c0747edec89"),
AgentMaster: stringPointer("e012e1ea-78a2-41cc-bc8b-231a44196f39"),
Default: stringPointer("8781a3f5-de46-4b45-83e1-c92f4cfd0332"),
Agent: stringPointer("ddb8f1b0-8a99-4032-b601-87926bce244e"),
ManagedServiceProvider: []config.ServiceProviderToken{
{
AccessorID: stringPointer("23f37987-7b9e-4e5b-acae-dbc9bc137bae"),
SecretID: stringPointer("e28b820a-438e-4e2b-ad24-fe59e6a4914f"),
},
},
},
},
AutoEncrypt: config.AutoEncrypt{
TLS: boolPointer(true),
DNSSAN: []string{"dns"},
IPSAN: []string{"198.18.0.1"},
AllowTLS: boolPointer(false),
},
}
actual := translateConfig(&original)
require.Equal(t, expected, actual)
}

1
agent/config/builder.go
View File

@ -906,6 +906,7 @@ func (b *Builder) Build() (rt RuntimeConfig, err error) {
ConnectMeshGatewayWANFederationEnabled: connectMeshGatewayWANFederationEnabled,
ConnectSidecarMinPort: sidecarMinPort,
ConnectSidecarMaxPort: sidecarMaxPort,
ConnectTestCALeafRootChangeSpread: b.durationVal("connect.test_ca_leaf_root_change_spread", c.Connect.TestCALeafRootChangeSpread),
ExposeMinPort: exposeMinPort,
ExposeMaxPort: exposeMaxPort,
DataDir: b.stringVal(c.DataDir),

5
agent/config/config.go
View File

@ -513,6 +513,11 @@ type Connect struct {
CAProvider *string `json:"ca_provider,omitempty" hcl:"ca_provider" mapstructure:"ca_provider"`
CAConfig map[string]interface{} `json:"ca_config,omitempty" hcl:"ca_config" mapstructure:"ca_config"`
MeshGatewayWANFederationEnabled *bool `json:"enable_mesh_gateway_wan_federation" hcl:"enable_mesh_gateway_wan_federation" mapstructure:"enable_mesh_gateway_wan_federation"`
// TestCALeafRootChangeSpread controls how long after a CA roots change before new leaft certs will be generated.
// This is only tuned in tests, generally set to 1ns to make tests deterministic with when to expect updated leaf
// certs by. This configuration is not exposed to users (not documented, and agent/config/default.go will override it)
TestCALeafRootChangeSpread *string `json:"test_ca_leaf_root_change_spread,omitempty" hcl:"test_ca_leaf_root_change_spread" mapstructure:"test_ca_leaf_root_change_spread"`
}
// SOA is the configuration of SOA for DNS

6
agent/config/default.go
View File

@ -190,6 +190,12 @@ func NonUserSource() Source {
# SegmentNameLimit is the maximum segment name length.
segment_name_limit = 64
connect = {
# 0s causes the value to be ignored and operate without capping
# the max time before leaf certs can be generated after a roots change.
test_ca_leaf_root_change_spread = "0s"
}
`,
}
}

49
agent/consul/options.go Normal file
View File

@ -0,0 +1,49 @@
package consul
import (
"github.com/hashicorp/consul/agent/pool"
"github.com/hashicorp/consul/agent/token"
"github.com/hashicorp/consul/tlsutil"
"github.com/hashicorp/go-hclog"
)
type consulOptions struct {
logger hclog.InterceptLogger
tlsConfigurator *tlsutil.Configurator
connPool *pool.ConnPool
tokens *token.Store
}
type ConsulOption func(*consulOptions)
func WithLogger(logger hclog.InterceptLogger) ConsulOption {
return func(opt *consulOptions) {
opt.logger = logger
}
}
func WithTLSConfigurator(tlsConfigurator *tlsutil.Configurator) ConsulOption {
return func(opt *consulOptions) {
opt.tlsConfigurator = tlsConfigurator
}
}
func WithConnectionPool(connPool *pool.ConnPool) ConsulOption {
return func(opt *consulOptions) {
opt.connPool = connPool
}
}
func WithTokenStore(tokens *token.Store) ConsulOption {
return func(opt *consulOptions) {
opt.tokens = tokens
}
}
func flattenConsulOptions(options []ConsulOption) consulOptions {
var flat consulOptions
for _, opt := range options {
opt(&flat)
}
return flat
}

6
agent/dns_test.go
View File

@ -4051,7 +4051,7 @@ func TestDNS_ServiceLookup_OnlyPassing(t *testing.T) {
newCfg := *a.Config
newCfg.DNSOnlyPassing = false
err := a.ReloadConfig(&newCfg)
err := a.reloadConfigInternal(&newCfg)
require.NoError(t, err)
// only_passing is now false. we should now get two nodes
@ -6996,7 +6996,7 @@ func TestDNS_ConfigReload(t *testing.T) {
newCfg.DNSSOA.Expire = 30
newCfg.DNSSOA.Minttl = 40
err := a.ReloadConfig(&newCfg)
err := a.reloadConfigInternal(&newCfg)
require.NoError(t, err)
for _, s := range a.dnsServers {
@ -7077,7 +7077,7 @@ func TestDNS_ReloadConfig_DuringQuery(t *testing.T) {
// reload the config halfway through, that should not affect the ongoing query
newCfg := *a.Config
newCfg.DNSAllowStale = true
a.ReloadConfig(&newCfg)
a.reloadConfigInternal(&newCfg)
select {
case in := <-res:

2
agent/http_test.go
View File

@ -1447,7 +1447,7 @@ func TestRPC_HTTPSMaxConnsPerClient(t *testing.T) {
// Reload config with higher limit
newCfg := *a.config
newCfg.HTTPMaxConnsPerClient = 10
require.NoError(t, a.ReloadConfig(&newCfg))
require.NoError(t, a.reloadConfigInternal(&newCfg))
// Now another conn should be allowed
conn4, err := net.DialTimeout("tcp", addr.String(), time.Second)

4
agent/local/state_test.go
View File

@ -1914,7 +1914,7 @@ func TestAgent_AliasCheck(t *testing.T) {
func TestAgent_sendCoordinate(t *testing.T) {
t.Parallel()
a := agent.NewTestAgent(t, `
a := agent.StartTestAgent(t, agent.TestAgent{Overrides: `
sync_coordinate_interval_min = "1ms"
sync_coordinate_rate_target = 10.0
consul = {
@ -1924,7 +1924,7 @@ func TestAgent_sendCoordinate(t *testing.T) {
update_max_batches = 1
}
}
`)
`})
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")

6
agent/pool/pool.go
View File

@ -556,7 +556,11 @@ func (p *ConnPool) RPC(
return fmt.Errorf("pool: ConnPool.RPC requires a node name")
}
if method == "AutoEncrypt.Sign" {
// TODO (autoconf) probably will want to have a way to invoke the
// secure or insecure variant depending on whether its an ongoing
// or first time config request. For now though this is fine until
// those ongoing requests are implemented.
if method == "AutoEncrypt.Sign" || method == "Cluster.AutoConfig" {
return p.rpcInsecure(dc, nodeName, addr, method, args, reply)
} else {
return p.rpc(dc, nodeName, addr, method, args, reply)

153
agent/testagent.go
View File

@ -2,6 +2,9 @@ package agent
import (
"bytes"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/x509"
"fmt"
"io"
"io/ioutil"
@ -20,6 +23,7 @@ import (
"github.com/hashicorp/go-hclog"
uuid "github.com/hashicorp/go-uuid"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/agent/config"
"github.com/hashicorp/consul/agent/connect"
"github.com/hashicorp/consul/agent/consul"
@ -27,6 +31,7 @@ import (
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/sdk/freeport"
"github.com/hashicorp/consul/sdk/testutil/retry"
"github.com/hashicorp/consul/tlsutil"
)
func init() {
@ -81,6 +86,10 @@ type TestAgent struct {
// It is valid after Start().
srv *HTTPServer
// overrides is an hcl config source to use to override otherwise
// non-user settable configurations
Overrides string
// Agent is the embedded consul agent.
// It is valid after Start().
*Agent
@ -100,6 +109,7 @@ func NewTestAgent(t *testing.T, hcl string) *TestAgent {
// The caller is responsible for calling Shutdown() to stop the agent and remove
// temporary directories.
func StartTestAgent(t *testing.T, a TestAgent) *TestAgent {
t.Helper()
retry.RunWith(retry.ThreeTimes(), t, func(r *retry.R) {
if err := a.Start(t); err != nil {
r.Fatal(err)
@ -109,9 +119,31 @@ func StartTestAgent(t *testing.T, a TestAgent) *TestAgent {
return &a
}
func TestConfigHCL(nodeID string) string {
return fmt.Sprintf(`
bind_addr = "127.0.0.1"
advertise_addr = "127.0.0.1"
datacenter = "dc1"
bootstrap = true
server = true
node_id = "%[1]s"
node_name = "Node-%[1]s"
connect {
enabled = true
ca_config {
cluster_id = "%[2]s"
}
}
performance {
raft_multiplier = 1
}`, nodeID, connect.TestClusterID,
)
}
// Start starts a test agent. It returns an error if the agent could not be started.
// If no error is returned, the caller must call Shutdown() when finished.
func (a *TestAgent) Start(t *testing.T) (err error) {
t.Helper()
if a.Agent != nil {
return fmt.Errorf("TestAgent already started")
}
@ -148,6 +180,7 @@ func (a *TestAgent) Start(t *testing.T) (err error) {
// parsing.
d = filepath.ToSlash(d)
hclDataDir = `data_dir = "` + d + `"`
a.DataDir = d
}
logOutput := a.LogOutput
@ -164,11 +197,27 @@ func (a *TestAgent) Start(t *testing.T) (err error) {
portsConfig, returnPortsFn := randomPortsSource(a.UseTLS)
a.returnPortsFn = returnPortsFn
a.Config = TestConfig(logger,
nodeID := NodeID()
opts := []AgentOption{
WithLogger(logger),
WithBuilderOpts(config.BuilderOpts{
HCL: []string{
TestConfigHCL(nodeID),
portsConfig,
config.Source{Name: name, Format: "hcl", Data: a.HCL},
config.Source{Name: name + ".data_dir", Format: "hcl", Data: hclDataDir},
)
a.HCL,
hclDataDir,
},
}),
WithOverrides(config.Source{
Name: "test-overrides",
Format: "hcl",
Data: a.Overrides},
config.DefaultConsulSource(),
config.DevConsulSource(),
),
}
defer func() {
if err != nil && a.returnPortsFn != nil {
@ -180,7 +229,7 @@ func (a *TestAgent) Start(t *testing.T) (err error) {
// write the keyring
if a.Key != "" {
writeKey := func(key, filename string) error {
path := filepath.Join(a.Config.DataDir, filename)
path := filepath.Join(a.DataDir, filename)
if err := initKeyring(path, key); err != nil {
cleanupTmpDir()
return fmt.Errorf("Error creating keyring %s: %s", path, err)
@ -197,13 +246,14 @@ func (a *TestAgent) Start(t *testing.T) (err error) {
}
}
agent, err := New(a.Config, logger)
agent, err := New(opts...)
if err != nil {
cleanupTmpDir()
return fmt.Errorf("Error creating agent: %s", err)
}
agent.LogOutput = logOutput
a.Config = agent.GetConfig()
agent.MemSink = metrics.NewInmemSink(1*time.Second, time.Minute)
id := string(a.Config.NodeID)
@ -224,6 +274,7 @@ func (a *TestAgent) Start(t *testing.T) (err error) {
if err := a.waitForUp(); err != nil {
cleanupTmpDir()
a.Shutdown()
t.Logf("Error while waiting for test agent to start: %v", err)
return errwrap.Wrapf(name+": {{err}}", err)
}
@ -271,7 +322,11 @@ func (a *TestAgent) waitForUp() error {
req := httptest.NewRequest("GET", "/v1/agent/self", nil)
resp := httptest.NewRecorder()
_, err := a.httpServers[0].AgentSelf(resp, req)
if err != nil || resp.Code != 200 {
if acl.IsErrPermissionDenied(err) || resp.Code == 403 {
// permission denied is enough to show that the client is
// connected to the servers as it would get a 503 if
// it couldn't connect to them.
} else if err != nil && resp.Code != 200 {
retErr = fmt.Errorf("failed OK response: %v", err)
continue
}
@ -372,7 +427,7 @@ func (a *TestAgent) consulConfig() *consul.Config {
// chance of port conflicts for concurrently executed test binaries.
// Instead of relying on one set of ports to be sufficient we retry
// starting the agent with different ports on port conflict.
func randomPortsSource(tls bool) (src config.Source, returnPortsFn func()) {
func randomPortsSource(tls bool) (data string, returnPortsFn func()) {
ports := freeport.MustTake(7)
var http, https int
@ -384,10 +439,7 @@ func randomPortsSource(tls bool) (src config.Source, returnPortsFn func()) {
https = -1
}
return config.Source{
Name: "ports",
Format: "hcl",
Data: `
return `
ports = {
dns = ` + strconv.Itoa(ports[0]) + `
http = ` + strconv.Itoa(http) + `
@ -397,8 +449,7 @@ func randomPortsSource(tls bool) (src config.Source, returnPortsFn func()) {
server = ` + strconv.Itoa(ports[5]) + `
grpc = ` + strconv.Itoa(ports[6]) + `
}
`,
}, func() { freeport.Return(ports) }
`, func() { freeport.Return(ports) }
}
func NodeID() string {
@ -518,34 +569,34 @@ func TestACLConfigNew() string {
}
var aclConfigTpl = template.Must(template.New("ACL Config").Parse(`
{{if ne .PrimaryDatacenter ""}}
{{- if ne .PrimaryDatacenter "" -}}
primary_datacenter = "{{ .PrimaryDatacenter }}"
{{end}}
{{end -}}
acl {
enabled = true
{{if ne .DefaultPolicy ""}}
{{- if ne .DefaultPolicy ""}}
default_policy = "{{ .DefaultPolicy }}"
{{end}}
{{- end}}
enable_token_replication = {{printf "%t" .EnableTokenReplication }}
{{if .HasConfiguredTokens }}
{{- if .HasConfiguredTokens}}
tokens {
{{if ne .MasterToken ""}}
{{- if ne .MasterToken ""}}
master = "{{ .MasterToken }}"
{{end}}
{{if ne .AgentToken ""}}
{{- end}}
{{- if ne .AgentToken ""}}
agent = "{{ .AgentToken }}"
{{end}}
{{if ne .AgentMasterToken "" }}
{{- end}}
{{- if ne .AgentMasterToken "" }}
agent_master = "{{ .AgentMasterToken }}"
{{end}}
{{if ne .DefaultToken "" }}
{{- end}}
{{- if ne .DefaultToken "" }}
default = "{{ .DefaultToken }}"
{{end}}
{{if ne .ReplicationToken "" }}
{{- end}}
{{- if ne .ReplicationToken "" }}
replication = "{{ .ReplicationToken }}"
{{end}}
{{- end}}
}
{{end}}
{{- end}}
}
`))
@ -564,3 +615,43 @@ func TestACLConfigWithParams(params *TestACLConfigParams) string {
return buf.String()
}
// testTLSCertificates Generates a TLS CA and server key/cert and returns them
// in PEM encoded form.
func testTLSCertificates(serverName string) (cert string, key string, cacert string, err error) {
// generate CA
serial, err := tlsutil.GenerateSerialNumber()
if err != nil {
return "", "", "", err
}
signer, err := ecdsa.GenerateKey(elliptic.P256(), rand.New(rand.NewSource(99)))
if err != nil {
return "", "", "", err
}
ca, err := tlsutil.GenerateCA(signer, serial, 365, nil)
if err != nil {
return "", "", "", err
}
// generate leaf
serial, err = tlsutil.GenerateSerialNumber()
if err != nil {
return "", "", "", err
}
cert, privateKey, err := tlsutil.GenerateCert(
signer,
ca,
serial,
"Test Cert Name",
365,
[]string{serverName},
nil,
[]x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth, x509.ExtKeyUsageClientAuth},
)
if err != nil {
return "", "", "", err
}
return cert, privateKey, ca, nil
}

8
command/acl/authmethod/create/authmethod_create_test.go
View File

@ -48,7 +48,7 @@ func TestAuthMethodCreateCommand(t *testing.T) {
}`)
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
testrpc.WaitForTestAgent(t, a.RPC, "dc1", testrpc.WithToken("root"))
client := a.Client()
t.Run("type required", func(t *testing.T) {
@ -201,7 +201,7 @@ func TestAuthMethodCreateCommand_JSON(t *testing.T) {
}`)
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
testrpc.WaitForTestAgent(t, a.RPC, "dc1", testrpc.WithToken("root"))
client := a.Client()
t.Run("type required", func(t *testing.T) {
@ -369,7 +369,7 @@ func TestAuthMethodCreateCommand_k8s(t *testing.T) {
}`)
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
testrpc.WaitForTestAgent(t, a.RPC, "dc1", testrpc.WithToken("root"))
client := a.Client()
t.Run("k8s host required", func(t *testing.T) {
@ -512,7 +512,7 @@ func TestAuthMethodCreateCommand_config(t *testing.T) {
}`)
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
testrpc.WaitForTestAgent(t, a.RPC, "dc1", testrpc.WithToken("root"))
client := a.Client()
checkMethod := func(t *testing.T, methodName string) {

4
command/acl/policy/read/policy_read_test.go
View File

@ -40,7 +40,7 @@ func TestPolicyReadCommand(t *testing.T) {
}`)
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
testrpc.WaitForTestAgent(t, a.RPC, "dc1", testrpc.WithToken("root"))
ui := cli.NewMockUi()
cmd := New(ui)
@ -86,7 +86,7 @@ func TestPolicyReadCommand_JSON(t *testing.T) {
}`)
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
testrpc.WaitForTestAgent(t, a.RPC, "dc1", testrpc.WithToken("root"))
ui := cli.NewMockUi()
cmd := New(ui)

118
command/agent/agent.go
View File

@ -18,9 +18,7 @@ import (
"github.com/hashicorp/consul/service_os"
"github.com/hashicorp/go-checkpoint"
"github.com/hashicorp/go-hclog"
multierror "github.com/hashicorp/go-multierror"
"github.com/mitchellh/cli"
"google.golang.org/grpc/grpclog"
)
func New(ui cli.Ui, revision, version, versionPre, versionHuman string, shutdownCh <-chan struct{}) *cmd {
@ -80,25 +78,6 @@ func (c *cmd) Run(args []string) int {
return code
}
// readConfig is responsible for setup of our configuration using
// the command line and any file configs
func (c *cmd) readConfig() *config.RuntimeConfig {
b, err := config.NewBuilder(c.flagArgs)
if err != nil {
c.UI.Error(err.Error())
return nil
}
cfg, err := b.BuildAndValidate()
if err != nil {
c.UI.Error(err.Error())
return nil
}
for _, w := range b.Warnings {
c.UI.Warn(w)
}
return &cfg
}
// checkpointResults is used to handler periodic results from our update checker
func (c *cmd) checkpointResults(results *checkpoint.CheckResponse, err error) {
if err != nil {
@ -185,29 +164,22 @@ func (c *cmd) run(args []string) int {
return 1
}
config := c.readConfig()
if config == nil {
logGate := logging.GatedWriter{Writer: &cli.UiWriter{Ui: c.UI}}
agentOptions := []agent.AgentOption{
agent.WithBuilderOpts(c.flagArgs),
agent.WithCLI(c.UI),
agent.WithLogWriter(&logGate),
}
agent, err := agent.New(agentOptions...)
if err != nil {
c.UI.Error(err.Error())
return 1
}
// Setup the log outputs
logConfig := &logging.Config{
LogLevel: config.LogLevel,
LogJSON: config.LogJSON,
Name: logging.Agent,
EnableSyslog: config.EnableSyslog,
SyslogFacility: config.SyslogFacility,
LogFilePath: config.LogFile,
LogRotateDuration: config.LogRotateDuration,
LogRotateBytes: config.LogRotateBytes,
LogRotateMaxFiles: config.LogRotateMaxFiles,
}
logger, logGate, logOutput, ok := logging.Setup(logConfig, c.UI)
if !ok {
return 1
}
c.logger = logger
config := agent.GetConfig()
c.logger = agent.GetLogger()
//Setup gate to check if we should output CLI information
cli := GatedUi{
@ -215,26 +187,8 @@ func (c *cmd) run(args []string) int {
ui: c.UI,
}
// Setup gRPC logger to use the same output/filtering
grpclog.SetLoggerV2(logging.NewGRPCLogger(logConfig, c.logger))
memSink, err := lib.InitTelemetry(config.Telemetry)
if err != nil {
c.logger.Error(err.Error())
logGate.Flush()
return 1
}
// Create the agent
cli.output("Starting Consul agent...")
agent, err := agent.New(config, c.logger)
if err != nil {
c.logger.Error("Error creating agent", "error", err)
logGate.Flush()
return 1
}
agent.LogOutput = logOutput
agent.MemSink = memSink
segment := config.SegmentName
if config.ServerMode {
@ -327,13 +281,9 @@ func (c *cmd) run(args []string) int {
for {
var sig os.Signal
var reloadErrCh chan error
select {
case s := <-signalCh:
sig = s
case ch := <-agent.ReloadCh():
sig = syscall.SIGHUP
reloadErrCh = ch
case <-service_os.Shutdown_Channel():
sig = os.Interrupt
case <-c.shutdownCh:
@ -353,18 +303,11 @@ func (c *cmd) run(args []string) int {
case syscall.SIGHUP:
c.logger.Info("Caught", "signal", sig)
conf, err := c.handleReload(agent, config)
if conf != nil {
config = conf
}
err := agent.ReloadConfig()
if err != nil {
c.logger.Error("Reload config failed", "error", err)
}
// Send result back if reload was called via HTTP
if reloadErrCh != nil {
reloadErrCh <- err
}
config = agent.GetConfig()
default:
c.logger.Info("Caught", "signal", sig)
@ -400,37 +343,6 @@ func (c *cmd) run(args []string) int {
}
}
// handleReload is invoked when we should reload our configs, e.g. SIGHUP
func (c *cmd) handleReload(agent *agent.Agent, cfg *config.RuntimeConfig) (*config.RuntimeConfig, error) {
c.logger.Info("Reloading configuration...")
var errs error
newCfg := c.readConfig()
if newCfg == nil {
errs = multierror.Append(errs, fmt.Errorf("Failed to reload configs"))
return cfg, errs
}
// Change the log level
if logging.ValidateLogLevel(newCfg.LogLevel) {
c.logger.SetLevel(logging.LevelFromString(newCfg.LogLevel))
} else {
errs = multierror.Append(fmt.Errorf(
"Invalid log level: %s. Valid log levels are: %v",
newCfg.LogLevel, logging.AllowedLogLevels()))
// Keep the current log level
newCfg.LogLevel = cfg.LogLevel
}
if err := agent.ReloadConfig(newCfg); err != nil {
errs = multierror.Append(fmt.Errorf(
"Failed to reload configs: %v", err))
}
return newCfg, errs
}
func (g *GatedUi) output(s string) {
if !g.JSONoutput {
g.ui.Output(s)

65
command/agent/agent_test.go
View File

@ -11,7 +11,6 @@ import (
"github.com/hashicorp/consul/testrpc"
"github.com/hashicorp/consul/agent"
"github.com/hashicorp/consul/agent/config"
"github.com/hashicorp/consul/sdk/testutil"
"github.com/hashicorp/consul/sdk/testutil/retry"
"github.com/mitchellh/cli"
@ -205,67 +204,3 @@ func TestBadDataDirPermissions(t *testing.T) {
t.Fatalf("expected permission denied error, got: %s", out)
}
}
func TestReloadLoggerFail(t *testing.T) {
a := agent.NewTestAgent(t, "")
defer a.Shutdown()
ui := cli.NewMockUi()
cmd := New(ui, "", "", "", "", nil)
bindAddr := a.Config.BindAddr.String()
cmd.flagArgs.Config.BindAddr = &bindAddr
cmd.flagArgs.Config.DataDir = &a.Config.DataDir
cmd.logger = testutil.Logger(t)
newLogLevel := "BLAH"
cmd.flagArgs.Config.LogLevel = &newLogLevel
oldCfg := config.RuntimeConfig{
LogLevel: "INFO",
}
cfg, err := cmd.handleReload(a.Agent, &oldCfg)
if err == nil {
t.Fatal("Should fail with bad log level")
}
if !strings.Contains(err.Error(), "Invalid log level") {
t.Fatalf("expected invalid log level error, got: %s", err)
}
if cfg.LogLevel != "INFO" {
t.Fatalf("expected log level to stay the same, got: %s", cfg.LogLevel)
}
}
func TestReloadLoggerSuccess(t *testing.T) {
a := agent.NewTestAgent(t, "")
defer a.Shutdown()
ui := cli.NewMockUi()
cmd := New(ui, "", "", "", "", nil)
bindAddr := a.Config.BindAddr.String()
cmd.flagArgs.Config.BindAddr = &bindAddr
cmd.flagArgs.Config.DataDir = &a.Config.DataDir
cmd.logger = testutil.Logger(t)
newLogLevel := "ERROR"
cmd.flagArgs.Config.LogLevel = &newLogLevel
oldCfg := config.RuntimeConfig{
LogLevel: "INFO",
}
cfg, err := cmd.handleReload(a.Agent, &oldCfg)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if cfg.LogLevel != "ERROR" {
t.Fatalf("expected log level to change to 'ERROR', got: %s", cfg.LogLevel)
}
if cmd.logger.IsWarn() || !cmd.logger.IsError() {
t.Fatal("expected logger level to change to 'ERROR'")
}
}

9
command/connect/proxy/proxy.go
View File

@ -3,6 +3,7 @@ package proxy
import (
"flag"
"fmt"
"io"
"log"
"net"
"net/http"
@ -136,8 +137,12 @@ func (c *cmd) Run(args []string) int {
Name: logging.Proxy,
LogJSON: c.logJSON,
}
logger, logGate, _, ok := logging.Setup(logConfig, c.UI)
if !ok {
logGate := logging.GatedWriter{Writer: &cli.UiWriter{Ui: c.UI}}
logger, _, err := logging.Setup(logConfig, []io.Writer{&logGate})
if err != nil {
c.UI.Error(err.Error())
return 1
}
c.logger = logger

5
command/reload/reload_test.go
View File

@ -21,11 +21,6 @@ func TestReloadCommand(t *testing.T) {
defer a.Shutdown()
// Setup a dummy response to errCh to simulate a successful reload
go func() {
errCh := <-a.ReloadCh()
errCh <- nil
}()
ui := cli.NewMockUi()
c := New(ui)
args := []string{"-http-addr=" + a.HTTPAddr()}

6
connect/service_test.go
View File

@ -127,7 +127,11 @@ func TestService_Dial(t *testing.T) {
func TestService_ServerTLSConfig(t *testing.T) {
require := require.New(t)
a := agent.StartTestAgent(t, agent.TestAgent{Name: "007"})
a := agent.StartTestAgent(t, agent.TestAgent{Name: "007", Overrides: `
connect {
test_ca_leaf_root_change_spread = "1ns"
}
`})
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
client := a.Client()

31
logging/logger.go
View File

@ -8,7 +8,6 @@ import (
"github.com/hashicorp/go-hclog"
gsyslog "github.com/hashicorp/go-syslog"
"github.com/mitchellh/cli"
)
// Config is used to set up logging.
@ -51,6 +50,8 @@ var (
logRotateBytes int
)
type LogSetupErrorFn func(string)
// Setup is used to perform setup of several logging objects:
//
// * A hclog.Logger is used to perform filtering by log level and write to io.Writer.
@ -62,17 +63,11 @@ var (
// The provided ui object will get any log messages related to setting up
// logging itself, and will also be hooked up to the gated logger. The final bool
// parameter indicates if logging was set up successfully.
func Setup(config *Config, ui cli.Ui) (hclog.InterceptLogger, *GatedWriter, io.Writer, bool) {
// The gated writer buffers logs at startup and holds until it's flushed.
logGate := &GatedWriter{
Writer: &cli.UiWriter{Ui: ui},
}
func Setup(config *Config, writers []io.Writer) (hclog.InterceptLogger, io.Writer, error) {
if !ValidateLogLevel(config.LogLevel) {
ui.Error(fmt.Sprintf(
"Invalid log level: %s. Valid log levels are: %v",
config.LogLevel, allowedLogLevels))
return nil, nil, nil, false
return nil, nil, fmt.Errorf("Invalid log level: %s. Valid log levels are: %v",
config.LogLevel,
allowedLogLevels)
}
// Set up syslog if it's enabled.
@ -87,20 +82,15 @@ func Setup(config *Config, ui cli.Ui) (hclog.InterceptLogger, *GatedWriter, io.W
break
}
ui.Error(fmt.Sprintf("Syslog setup error: %v", err))
if i == retries {
timeout := time.Duration(retries) * delay
ui.Error(fmt.Sprintf("Syslog setup did not succeed within timeout (%s).", timeout.String()))
return nil, nil, nil, false
return nil, nil, fmt.Errorf("Syslog setup did not succeed within timeout (%s).", timeout.String())
}
ui.Error(fmt.Sprintf("Retrying syslog setup in %s...", delay.String()))
time.Sleep(delay)
}
}
writers := []io.Writer{logGate}
var logOutput io.Writer
if syslog != nil {
writers = append(writers, syslog)
}
@ -131,13 +121,12 @@ func Setup(config *Config, ui cli.Ui) (hclog.InterceptLogger, *GatedWriter, io.W
MaxFiles: config.LogRotateMaxFiles,
}
if err := logFile.openNew(); err != nil {
ui.Error(fmt.Sprintf("Failed to setup logging: %v", err))
return nil, nil, nil, false
return nil, nil, fmt.Errorf("Failed to setup logging: %w", err)
}
writers = append(writers, logFile)
}
logOutput = io.MultiWriter(writers...)
logOutput := io.MultiWriter(writers...)
logger := hclog.NewInterceptLogger(&hclog.LoggerOptions{
Level: LevelFromString(config.LogLevel),
@ -146,5 +135,5 @@ func Setup(config *Config, ui cli.Ui) (hclog.InterceptLogger, *GatedWriter, io.W
JSONFormat: config.LogJSON,
})
return logger, logGate, logOutput, true
return logger, logOutput, nil
}

97
logging/logger_test.go
View File

@ -1,12 +1,14 @@
package logging
import (
"bytes"
"encoding/json"
"errors"
"io"
"os"
"testing"
"github.com/hashicorp/consul/sdk/testutil"
"github.com/mitchellh/cli"
"github.com/stretchr/testify/require"
)
@ -16,24 +18,19 @@ func TestLogger_SetupBasic(t *testing.T) {
cfg := &Config{
LogLevel: "INFO",
}
ui := cli.NewMockUi()
logger, gatedWriter, writer, ok := Setup(cfg, ui)
require.True(ok)
require.NotNil(gatedWriter)
logger, writer, err := Setup(cfg, nil)
require.NoError(err)
require.NotNil(writer)
require.NotNil(logger)
}
func TestLogger_SetupInvalidLogLevel(t *testing.T) {
t.Parallel()
require := require.New(t)
cfg := &Config{}
ui := cli.NewMockUi()
_, _, _, ok := Setup(cfg, ui)
require.False(ok)
require.Contains(ui.ErrorWriter.String(), "Invalid log level")
_, _, err := Setup(cfg, nil)
testutil.RequireErrorContains(t, err, "Invalid log level")
}
func TestLogger_SetupLoggerErrorLevel(t *testing.T) {
@ -63,20 +60,19 @@ func TestLogger_SetupLoggerErrorLevel(t *testing.T) {
c.before(&cfg)
require := require.New(t)
ui := cli.NewMockUi()
var buf bytes.Buffer
logger, gatedWriter, _, ok := Setup(&cfg, ui)
require.True(ok)
logger, _, err := Setup(&cfg, []io.Writer{&buf})
require.NoError(err)
require.NotNil(logger)
require.NotNil(gatedWriter)
gatedWriter.Flush()
logger.Error("test error msg")
logger.Info("test info msg")
require.Contains(ui.OutputWriter.String(), "[ERROR] test error msg")
require.NotContains(ui.OutputWriter.String(), "[INFO] test info msg")
output := buf.String()
require.Contains(output, "[ERROR] test error msg")
require.NotContains(output, "[INFO] test info msg")
})
}
}
@ -87,20 +83,19 @@ func TestLogger_SetupLoggerDebugLevel(t *testing.T) {
cfg := &Config{
LogLevel: "DEBUG",
}
ui := cli.NewMockUi()
var buf bytes.Buffer
logger, gatedWriter, _, ok := Setup(cfg, ui)
require.True(ok)
logger, _, err := Setup(cfg, []io.Writer{&buf})
require.NoError(err)
require.NotNil(logger)
require.NotNil(gatedWriter)
gatedWriter.Flush()
logger.Info("test info msg")
logger.Debug("test debug msg")
require.Contains(ui.OutputWriter.String(), "[INFO] test info msg")
require.Contains(ui.OutputWriter.String(), "[DEBUG] test debug msg")
output := buf.String()
require.Contains(output, "[INFO] test info msg")
require.Contains(output, "[DEBUG] test debug msg")
}
func TestLogger_SetupLoggerWithName(t *testing.T) {
@ -110,18 +105,15 @@ func TestLogger_SetupLoggerWithName(t *testing.T) {
LogLevel: "DEBUG",
Name: "test-system",
}
ui := cli.NewMockUi()
var buf bytes.Buffer
logger, gatedWriter, _, ok := Setup(cfg, ui)
require.True(ok)
logger, _, err := Setup(cfg, []io.Writer{&buf})
require.NoError(err)
require.NotNil(logger)
require.NotNil(gatedWriter)
gatedWriter.Flush()
logger.Warn("test warn msg")
require.Contains(ui.OutputWriter.String(), "[WARN] test-system: test warn msg")
require.Contains(buf.String(), "[WARN] test-system: test warn msg")
}
func TestLogger_SetupLoggerWithJSON(t *testing.T) {
@ -132,19 +124,16 @@ func TestLogger_SetupLoggerWithJSON(t *testing.T) {
LogJSON: true,
Name: "test-system",
}
ui := cli.NewMockUi()
var buf bytes.Buffer
logger, gatedWriter, _, ok := Setup(cfg, ui)
require.True(ok)
logger, _, err := Setup(cfg, []io.Writer{&buf})
require.NoError(err)
require.NotNil(logger)
require.NotNil(gatedWriter)
gatedWriter.Flush()
logger.Warn("test warn msg")
var jsonOutput map[string]string
err := json.Unmarshal(ui.OutputWriter.Bytes(), &jsonOutput)
err = json.Unmarshal(buf.Bytes(), &jsonOutput)
require.NoError(err)
require.Contains(jsonOutput, "@level")
require.Equal(jsonOutput["@level"], "warn")
@ -163,13 +152,11 @@ func TestLogger_SetupLoggerWithValidLogPath(t *testing.T) {
LogLevel: "INFO",
LogFilePath: tmpDir + "/",
}
ui := cli.NewMockUi()
var buf bytes.Buffer
logger, gatedWriter, writer, ok := Setup(cfg, ui)
require.True(ok)
logger, _, err := Setup(cfg, []io.Writer{&buf})
require.NoError(err)
require.NotNil(logger)
require.NotNil(gatedWriter)
require.NotNil(writer)
}
func TestLogger_SetupLoggerWithInValidLogPath(t *testing.T) {
@ -180,14 +167,12 @@ func TestLogger_SetupLoggerWithInValidLogPath(t *testing.T) {
LogLevel: "INFO",
LogFilePath: "nonexistentdir/",
}
ui := cli.NewMockUi()
var buf bytes.Buffer
logger, gatedWriter, writer, ok := Setup(cfg, ui)
require.Contains(ui.ErrorWriter.String(), "no such file or directory")
require.False(ok)
logger, _, err := Setup(cfg, []io.Writer{&buf})
require.Error(err)
require.True(errors.Is(err, os.ErrNotExist))
require.Nil(logger)
require.Nil(gatedWriter)
require.Nil(writer)
}
func TestLogger_SetupLoggerWithInValidLogPathPermission(t *testing.T) {
@ -203,12 +188,10 @@ func TestLogger_SetupLoggerWithInValidLogPathPermission(t *testing.T) {
LogLevel: "INFO",
LogFilePath: tmpDir + "/",
}
ui := cli.NewMockUi()
var buf bytes.Buffer
logger, gatedWriter, writer, ok := Setup(cfg, ui)
require.Contains(ui.ErrorWriter.String(), "permission denied")
require.False(ok)
logger, _, err := Setup(cfg, []io.Writer{&buf})
require.Error(err)
require.True(errors.Is(err, os.ErrPermission))
require.Nil(logger)
require.Nil(gatedWriter)
require.Nil(writer)
}

1
logging/names.go
View File

@ -5,6 +5,7 @@ const (
Agent string = "agent"
AntiEntropy string = "anti_entropy"
AutoEncrypt string = "auto_encrypt"
AutoConfig string = "auto_config"
Autopilot string = "autopilot"
AWS string = "aws"
Azure string = "azure"