consul/agent/health_endpoint_test.go

1566 lines
41 KiB
Go

package agent
import (
"bytes"
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"net/url"
"reflect"
"strconv"
"testing"
"time"
"github.com/armon/go-metrics"
"github.com/hashicorp/serf/coordinate"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/sdk/testutil/retry"
"github.com/hashicorp/consul/testrpc"
)
func TestHealthChecksInState(t *testing.T) {
t.Parallel()
t.Run("warning", func(t *testing.T) {
a := NewTestAgent(t, "")
defer a.Shutdown()
req, _ := http.NewRequest("GET", "/v1/health/state/warning?dc=dc1", nil)
retry.Run(t, func(r *retry.R) {
resp := httptest.NewRecorder()
obj, err := a.srv.HealthChecksInState(resp, req)
if err != nil {
r.Fatal(err)
}
if err := checkIndex(resp); err != nil {
r.Fatal(err)
}
// Should be a non-nil empty list
nodes := obj.(structs.HealthChecks)
if nodes == nil || len(nodes) != 0 {
r.Fatalf("bad: %v", obj)
}
})
})
t.Run("passing", func(t *testing.T) {
a := NewTestAgent(t, "")
defer a.Shutdown()
req, _ := http.NewRequest("GET", "/v1/health/state/passing?dc=dc1", nil)
retry.Run(t, func(r *retry.R) {
resp := httptest.NewRecorder()
obj, err := a.srv.HealthChecksInState(resp, req)
if err != nil {
r.Fatal(err)
}
if err := checkIndex(resp); err != nil {
r.Fatal(err)
}
// Should be 1 health check for the server
nodes := obj.(structs.HealthChecks)
if len(nodes) != 1 {
r.Fatalf("bad: %v", obj)
}
})
})
}
func TestHealthChecksInState_NodeMetaFilter(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
NodeMeta: map[string]string{"somekey": "somevalue"},
Check: &structs.HealthCheck{
Node: "bar",
Name: "node check",
Status: api.HealthCritical,
},
}
var out struct{}
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ := http.NewRequest("GET", "/v1/health/state/critical?node-meta=somekey:somevalue", nil)
retry.Run(t, func(r *retry.R) {
resp := httptest.NewRecorder()
obj, err := a.srv.HealthChecksInState(resp, req)
if err != nil {
r.Fatal(err)
}
if err := checkIndex(resp); err != nil {
r.Fatal(err)
}
// Should be 1 health check for the server
nodes := obj.(structs.HealthChecks)
if len(nodes) != 1 {
r.Fatalf("bad: %v", obj)
}
})
}
func TestHealthChecksInState_Filter(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
NodeMeta: map[string]string{"somekey": "somevalue"},
Check: &structs.HealthCheck{
Node: "bar",
Name: "node check",
Status: api.HealthCritical,
},
}
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
args = &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
NodeMeta: map[string]string{"somekey": "somevalue"},
Check: &structs.HealthCheck{
Node: "bar",
Name: "node check 2",
Status: api.HealthCritical,
},
SkipNodeUpdate: true,
}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
req, _ := http.NewRequest("GET", "/v1/health/state/critical?filter="+url.QueryEscape("Name == `node check 2`"), nil)
retry.Run(t, func(r *retry.R) {
resp := httptest.NewRecorder()
obj, err := a.srv.HealthChecksInState(resp, req)
require.NoError(r, err)
require.NoError(r, checkIndex(resp))
// Should be 1 health check for the server
nodes := obj.(structs.HealthChecks)
require.Len(r, nodes, 1)
})
}
func TestHealthChecksInState_DistanceSort(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
Check: &structs.HealthCheck{
Node: "bar",
Name: "node check",
Status: api.HealthCritical,
},
}
var out struct{}
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
args.Node, args.Check.Node = "foo", "foo"
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ := http.NewRequest("GET", "/v1/health/state/critical?dc=dc1&near=foo", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthChecksInState(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes := obj.(structs.HealthChecks)
if len(nodes) != 2 {
t.Fatalf("bad: %v", nodes)
}
if nodes[0].Node != "bar" {
t.Fatalf("bad: %v", nodes)
}
if nodes[1].Node != "foo" {
t.Fatalf("bad: %v", nodes)
}
// Send an update for the node and wait for it to get applied.
arg := structs.CoordinateUpdateRequest{
Datacenter: "dc1",
Node: "foo",
Coord: coordinate.NewCoordinate(coordinate.DefaultConfig()),
}
if err := a.RPC("Coordinate.Update", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
// Retry until foo moves to the front of the line.
retry.Run(t, func(r *retry.R) {
resp = httptest.NewRecorder()
obj, err = a.srv.HealthChecksInState(resp, req)
if err != nil {
r.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes = obj.(structs.HealthChecks)
if len(nodes) != 2 {
r.Fatalf("bad: %v", nodes)
}
if nodes[0].Node != "foo" {
r.Fatalf("bad: %v", nodes)
}
if nodes[1].Node != "bar" {
r.Fatalf("bad: %v", nodes)
}
})
}
func TestHealthNodeChecks(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
req, _ := http.NewRequest("GET", "/v1/health/node/nope?dc=dc1", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthNodeChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list
nodes := obj.(structs.HealthChecks)
if nodes == nil || len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
req, _ = http.NewRequest("GET", fmt.Sprintf("/v1/health/node/%s?dc=dc1", a.Config.NodeName), nil)
resp = httptest.NewRecorder()
obj, err = a.srv.HealthNodeChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 1 health check for the server
nodes = obj.(structs.HealthChecks)
if len(nodes) != 1 {
t.Fatalf("bad: %v", obj)
}
}
func TestHealthNodeChecks_Filtering(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
// Create a node check
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "test-health-node",
Address: "127.0.0.2",
Check: &structs.HealthCheck{
Node: "test-health-node",
Name: "check1",
},
}
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
// Create a second check
args = &structs.RegisterRequest{
Datacenter: "dc1",
Node: "test-health-node",
Address: "127.0.0.2",
Check: &structs.HealthCheck{
Node: "test-health-node",
Name: "check2",
},
SkipNodeUpdate: true,
}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
req, _ := http.NewRequest("GET", "/v1/health/node/test-health-node?filter="+url.QueryEscape("Name == check2"), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthNodeChecks(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be 1 health check for the server
nodes := obj.(structs.HealthChecks)
require.Len(t, nodes, 1)
}
func TestHealthServiceChecks(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
req, _ := http.NewRequest("GET", "/v1/health/checks/consul?dc=dc1", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list
nodes := obj.(structs.HealthChecks)
if nodes == nil || len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
// Create a service check
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: a.Config.NodeName,
Address: "127.0.0.1",
Check: &structs.HealthCheck{
Node: a.Config.NodeName,
Name: "consul check",
ServiceID: "consul",
Type: "grpc",
},
}
var out struct{}
if err = a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ = http.NewRequest("GET", "/v1/health/checks/consul?dc=dc1", nil)
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 1 health check for consul
nodes = obj.(structs.HealthChecks)
if len(nodes) != 1 {
t.Fatalf("bad: %v", obj)
}
if nodes[0].Type != "grpc" {
t.Fatalf("expected grpc check type, got %s", nodes[0].Type)
}
}
func TestHealthServiceChecks_NodeMetaFilter(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
req, _ := http.NewRequest("GET", "/v1/health/checks/consul?dc=dc1&node-meta=somekey:somevalue", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list
nodes := obj.(structs.HealthChecks)
if nodes == nil || len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
// Create a service check
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: a.Config.NodeName,
Address: "127.0.0.1",
NodeMeta: map[string]string{"somekey": "somevalue"},
Check: &structs.HealthCheck{
Node: a.Config.NodeName,
Name: "consul check",
ServiceID: "consul",
},
}
var out struct{}
if err = a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ = http.NewRequest("GET", "/v1/health/checks/consul?dc=dc1&node-meta=somekey:somevalue", nil)
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 1 health check for consul
nodes = obj.(structs.HealthChecks)
if len(nodes) != 1 {
t.Fatalf("bad: %v", obj)
}
}
func TestHealthServiceChecks_Filtering(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
req, _ := http.NewRequest("GET", "/v1/health/checks/consul?dc=dc1&node-meta=somekey:somevalue", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceChecks(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be a non-nil empty list
nodes := obj.(structs.HealthChecks)
require.Empty(t, nodes)
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: a.Config.NodeName,
Address: "127.0.0.1",
NodeMeta: map[string]string{"somekey": "somevalue"},
Check: &structs.HealthCheck{
Node: a.Config.NodeName,
Name: "consul check",
ServiceID: "consul",
},
SkipNodeUpdate: true,
}
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
// Create a new node, service and check
args = &structs.RegisterRequest{
Datacenter: "dc1",
Node: "test-health-node",
Address: "127.0.0.2",
NodeMeta: map[string]string{"somekey": "somevalue"},
Service: &structs.NodeService{
ID: "consul",
Service: "consul",
},
Check: &structs.HealthCheck{
Node: "test-health-node",
Name: "consul check",
ServiceID: "consul",
},
}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
req, _ = http.NewRequest("GET", "/v1/health/checks/consul?dc=dc1&filter="+url.QueryEscape("Node == `test-health-node`"), nil)
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceChecks(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be 1 health check for consul
nodes = obj.(structs.HealthChecks)
require.Len(t, nodes, 1)
}
func TestHealthServiceChecks_DistanceSort(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
// Create a service check
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: "test",
Service: "test",
},
Check: &structs.HealthCheck{
Node: "bar",
Name: "test check",
ServiceID: "test",
},
}
var out struct{}
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
args.Node, args.Check.Node = "foo", "foo"
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ := http.NewRequest("GET", "/v1/health/checks/test?dc=dc1&near=foo", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceChecks(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes := obj.(structs.HealthChecks)
if len(nodes) != 2 {
t.Fatalf("bad: %v", obj)
}
if nodes[0].Node != "bar" {
t.Fatalf("bad: %v", nodes)
}
if nodes[1].Node != "foo" {
t.Fatalf("bad: %v", nodes)
}
// Send an update for the node and wait for it to get applied.
arg := structs.CoordinateUpdateRequest{
Datacenter: "dc1",
Node: "foo",
Coord: coordinate.NewCoordinate(coordinate.DefaultConfig()),
}
if err := a.RPC("Coordinate.Update", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
// Retry until foo has moved to the front of the line.
retry.Run(t, func(r *retry.R) {
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceChecks(resp, req)
if err != nil {
r.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes = obj.(structs.HealthChecks)
if len(nodes) != 2 {
r.Fatalf("bad: %v", obj)
}
if nodes[0].Node != "foo" {
r.Fatalf("bad: %v", nodes)
}
if nodes[1].Node != "bar" {
r.Fatalf("bad: %v", nodes)
}
})
}
func TestHealthServiceNodes(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
assert := assert.New(t)
require := require.New(t)
req, _ := http.NewRequest("GET", "/v1/health/service/consul?dc=dc1", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 1 health check for consul
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 1 {
t.Fatalf("bad: %v", obj)
}
req, _ = http.NewRequest("GET", "/v1/health/service/nope?dc=dc1", nil)
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list
nodes = obj.(structs.CheckServiceNodes)
if nodes == nil || len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: "test",
Service: "test",
},
}
var out struct{}
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ = http.NewRequest("GET", "/v1/health/service/test?dc=dc1", nil)
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list for checks
nodes = obj.(structs.CheckServiceNodes)
if len(nodes) != 1 || nodes[0].Checks == nil || len(nodes[0].Checks) != 0 {
t.Fatalf("bad: %v", obj)
}
// Test caching
{
// List instances with cache enabled
req, _ := http.NewRequest("GET", "/v1/health/service/test?cached", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
require.NoError(err)
nodes := obj.(structs.CheckServiceNodes)
assert.Len(nodes, 1)
// Should be a cache miss
assert.Equal("MISS", resp.Header().Get("X-Cache"))
}
{
// List instances with cache enabled
req, _ := http.NewRequest("GET", "/v1/health/service/test?cached", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
require.NoError(err)
nodes := obj.(structs.CheckServiceNodes)
assert.Len(nodes, 1)
// Should be a cache HIT now!
assert.Equal("HIT", resp.Header().Get("X-Cache"))
}
// Ensure background refresh works
{
// Register a new instance of the service
args2 := args
args2.Node = "baz"
args2.Address = "127.0.0.2"
require.NoError(a.RPC("Catalog.Register", args, &out))
retry.Run(t, func(r *retry.R) {
// List it again
req, _ := http.NewRequest("GET", "/v1/health/service/test?cached", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
r.Check(err)
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 2 {
r.Fatalf("Want 2 nodes")
}
header := resp.Header().Get("X-Consul-Index")
if header == "" || header == "0" {
r.Fatalf("Want non-zero header: %q", header)
}
_, err = strconv.ParseUint(header, 10, 64)
r.Check(err)
// Should be a cache hit! The data should've updated in the cache
// in the background so this should've been fetched directly from
// the cache.
if resp.Header().Get("X-Cache") != "HIT" {
r.Fatalf("should be a cache hit")
}
})
}
}
func TestHealthServiceNodes_Blocking(t *testing.T) {
cases := []struct {
name string
hcl string
grpcMetrics bool
}{
{name: "no streaming"},
{
name: "streaming",
grpcMetrics: true,
hcl: `
rpc { enable_streaming = true }
use_streaming_backend = true
`,
},
}
for _, tc := range cases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
sink := metrics.NewInmemSink(5*time.Second, time.Minute)
metrics.NewGlobal(&metrics.Config{
ServiceName: "testing",
AllowedPrefixes: []string{"testing.grpc."},
}, sink)
a := NewTestAgent(t, tc.hcl)
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
// Register some initial service instances
for i := 0; i < 2; i++ {
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: fmt.Sprintf("test%03d", i),
Service: "test",
},
}
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
}
// Initial request should return two instances
req, _ := http.NewRequest("GET", "/v1/health/service/test?dc=dc1", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
require.NoError(t, err)
nodes := obj.(structs.CheckServiceNodes)
require.Len(t, nodes, 2)
idx := getIndex(t, resp)
require.True(t, idx > 0)
// errCh collects errors from goroutines since it's unsafe for them to use
// t to fail tests directly.
errCh := make(chan error, 1)
checkErrs := func() {
// Ensure no errors were sent on errCh and drain any nils we have
for {
select {
case err := <-errCh:
require.NoError(t, err)
default:
return
}
}
}
// Blocking on that index should block. We test that by launching another
// goroutine that will wait a while before updating the registration and
// make sure that we unblock before timeout and see the update but that it
// takes at least as long as the sleep time.
sleep := 200 * time.Millisecond
start := time.Now()
go func() {
time.Sleep(sleep)
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "zoo",
Address: "127.0.0.3",
Service: &structs.NodeService{
ID: "test",
Service: "test",
},
}
var out struct{}
errCh <- a.RPC("Catalog.Register", args, &out)
}()
{
timeout := 30 * time.Second
url := fmt.Sprintf("/v1/health/service/test?dc=dc1&index=%d&wait=%s", idx, timeout)
req, _ := http.NewRequest("GET", url, nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
require.NoError(t, err)
elapsed := time.Since(start)
require.True(t, elapsed > sleep, "request should block for at "+
" least as long as sleep. sleep=%s, elapsed=%s", sleep, elapsed)
require.True(t, elapsed < timeout, "request should unblock before"+
" it timed out. timeout=%s, elapsed=%s", timeout, elapsed)
nodes := obj.(structs.CheckServiceNodes)
require.Len(t, nodes, 3)
newIdx := getIndex(t, resp)
require.True(t, idx < newIdx, "index should have increased."+
"idx=%d, newIdx=%d", idx, newIdx)
idx = newIdx
checkErrs()
}
// Blocking should last until timeout in absence of updates
start = time.Now()
{
timeout := 200 * time.Millisecond
url := fmt.Sprintf("/v1/health/service/test?dc=dc1&index=%d&wait=%s",
idx, timeout)
req, _ := http.NewRequest("GET", url, nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
require.NoError(t, err)
elapsed := time.Since(start)
// Note that servers add jitter to timeout requested but don't remove it
// so this should always be true.
require.True(t, elapsed > timeout, "request should block for at "+
" least as long as timeout. timeout=%s, elapsed=%s", timeout, elapsed)
nodes := obj.(structs.CheckServiceNodes)
require.Len(t, nodes, 3)
newIdx := getIndex(t, resp)
require.Equal(t, idx, newIdx)
}
if tc.grpcMetrics {
data := sink.Data()
if l := len(data); l < 1 {
t.Errorf("expected at least 1 metrics interval, got :%v", l)
}
if count := len(data[0].Gauges); count < 2 {
t.Errorf("expected at least 2 grpc gauge metrics, got: %v", count)
}
}
})
}
}
func TestHealthServiceNodes_NodeMetaFilter(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
req, _ := http.NewRequest("GET", "/v1/health/service/consul?dc=dc1&node-meta=somekey:somevalue", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list
nodes := obj.(structs.CheckServiceNodes)
if nodes == nil || len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: "bar",
Address: "127.0.0.1",
NodeMeta: map[string]string{"somekey": "somevalue"},
Service: &structs.NodeService{
ID: "test",
Service: "test",
},
}
var out struct{}
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ = http.NewRequest("GET", "/v1/health/service/test?dc=dc1&node-meta=somekey:somevalue", nil)
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be a non-nil empty list for checks
nodes = obj.(structs.CheckServiceNodes)
if len(nodes) != 1 || nodes[0].Checks == nil || len(nodes[0].Checks) != 0 {
t.Fatalf("bad: %v", obj)
}
}
func TestHealthServiceNodes_Filter(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
req, _ := http.NewRequest("GET", "/v1/health/service/consul?dc=dc1&filter="+url.QueryEscape("Node.Node == `test-health-node`"), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be a non-nil empty list
nodes := obj.(structs.CheckServiceNodes)
require.Empty(t, nodes)
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: a.Config.NodeName,
Address: "127.0.0.1",
NodeMeta: map[string]string{"somekey": "somevalue"},
Check: &structs.HealthCheck{
Node: a.Config.NodeName,
Name: "consul check",
ServiceID: "consul",
},
}
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
// Create a new node, service and check
args = &structs.RegisterRequest{
Datacenter: "dc1",
Node: "test-health-node",
Address: "127.0.0.2",
NodeMeta: map[string]string{"somekey": "somevalue"},
Service: &structs.NodeService{
ID: "consul",
Service: "consul",
},
Check: &structs.HealthCheck{
Node: "test-health-node",
Name: "consul check",
ServiceID: "consul",
},
}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
req, _ = http.NewRequest("GET", "/v1/health/service/consul?dc=dc1&filter="+url.QueryEscape("Node.Node == `test-health-node`"), nil)
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceNodes(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be a list of checks with 1 element
nodes = obj.(structs.CheckServiceNodes)
require.Len(t, nodes, 1)
require.Len(t, nodes[0].Checks, 1)
}
func TestHealthServiceNodes_DistanceSort(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
dc := "dc1"
// Create a service check
args := &structs.RegisterRequest{
Datacenter: dc,
Node: "bar",
Address: "127.0.0.1",
Service: &structs.NodeService{
ID: "test",
Service: "test",
},
Check: &structs.HealthCheck{
Node: "bar",
Name: "test check",
ServiceID: "test",
},
}
testrpc.WaitForLeader(t, a.RPC, dc)
var out struct{}
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
args.Node, args.Check.Node = "foo", "foo"
if err := a.RPC("Catalog.Register", args, &out); err != nil {
t.Fatalf("err: %v", err)
}
req, _ := http.NewRequest("GET", "/v1/health/service/test?dc=dc1&near=foo", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 2 {
t.Fatalf("bad: %v", obj)
}
if nodes[0].Node.Node != "bar" {
t.Fatalf("bad: %v", nodes)
}
if nodes[1].Node.Node != "foo" {
t.Fatalf("bad: %v", nodes)
}
// Send an update for the node and wait for it to get applied.
arg := structs.CoordinateUpdateRequest{
Datacenter: "dc1",
Node: "foo",
Coord: coordinate.NewCoordinate(coordinate.DefaultConfig()),
}
if err := a.RPC("Coordinate.Update", &arg, &out); err != nil {
t.Fatalf("err: %v", err)
}
// Retry until foo has moved to the front of the line.
retry.Run(t, func(r *retry.R) {
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceNodes(resp, req)
if err != nil {
r.Fatalf("err: %v", err)
}
assertIndex(t, resp)
nodes = obj.(structs.CheckServiceNodes)
if len(nodes) != 2 {
r.Fatalf("bad: %v", obj)
}
if nodes[0].Node.Node != "foo" {
r.Fatalf("bad: %v", nodes)
}
if nodes[1].Node.Node != "bar" {
r.Fatalf("bad: %v", nodes)
}
})
}
func TestHealthServiceNodes_PassingFilter(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
dc := "dc1"
// Create a failing service check
args := &structs.RegisterRequest{
Datacenter: dc,
Node: a.Config.NodeName,
Address: "127.0.0.1",
Check: &structs.HealthCheck{
Node: a.Config.NodeName,
Name: "consul check",
ServiceID: "consul",
Status: api.HealthCritical,
},
}
retry.Run(t, func(r *retry.R) {
var out struct{}
if err := a.RPC("Catalog.Register", args, &out); err != nil {
r.Fatalf("err: %v", err)
}
})
t.Run("bc_no_query_value", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/v1/health/service/consul?passing", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 0 health check for consul
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
})
t.Run("passing_true", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/v1/health/service/consul?passing=true", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 0 health check for consul
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 0 {
t.Fatalf("bad: %v", obj)
}
})
t.Run("passing_false", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/v1/health/service/consul?passing=false", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
if err != nil {
t.Fatalf("err: %v", err)
}
assertIndex(t, resp)
// Should be 1 consul, it's unhealthy, but we specifically asked for
// everything.
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 1 {
t.Fatalf("bad: %v", obj)
}
})
t.Run("passing_bad", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/v1/health/service/consul?passing=nope-nope-nope", nil)
resp := httptest.NewRecorder()
a.srv.HealthServiceNodes(resp, req)
if code := resp.Code; code != 400 {
t.Errorf("bad response code %d, expected %d", code, 400)
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
t.Fatal(err)
}
if !bytes.Contains(body, []byte("Invalid value for ?passing")) {
t.Errorf("bad %s", body)
}
})
}
func TestHealthServiceNodes_CheckType(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
req, _ := http.NewRequest("GET", "/v1/health/service/consul?dc=dc1", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthServiceNodes(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be 1 health check for consul
nodes := obj.(structs.CheckServiceNodes)
if len(nodes) != 1 {
t.Fatalf("expected 1 node, got %d", len(nodes))
}
args := &structs.RegisterRequest{
Datacenter: "dc1",
Node: a.Config.NodeName,
Address: "127.0.0.1",
NodeMeta: map[string]string{"somekey": "somevalue"},
Check: &structs.HealthCheck{
Node: a.Config.NodeName,
Name: "consul check",
ServiceID: "consul",
Type: "grpc",
},
}
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
req, _ = http.NewRequest("GET", "/v1/health/service/consul?dc=dc1", nil)
resp = httptest.NewRecorder()
obj, err = a.srv.HealthServiceNodes(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
// Should be a non-nil empty list for checks
nodes = obj.(structs.CheckServiceNodes)
require.Len(t, nodes, 1)
require.Len(t, nodes[0].Checks, 2)
for _, check := range nodes[0].Checks {
if check.Name == "consul check" && check.Type != "grpc" {
t.Fatalf("exptected grpc check type, got %s", check.Type)
}
}
}
func TestHealthServiceNodes_WanTranslation(t *testing.T) {
t.Parallel()
a1 := NewTestAgent(t, `
datacenter = "dc1"
translate_wan_addrs = true
acl_datacenter = ""
`)
defer a1.Shutdown()
a2 := NewTestAgent(t, `
datacenter = "dc2"
translate_wan_addrs = true
acl_datacenter = ""
`)
defer a2.Shutdown()
// Wait for the WAN join.
addr := fmt.Sprintf("127.0.0.1:%d", a1.Config.SerfPortWAN)
_, err := a2.srv.agent.JoinWAN([]string{addr})
require.NoError(t, err)
retry.Run(t, func(r *retry.R) {
require.Len(r, a1.WANMembers(), 2)
})
// Register a node with DC2.
{
args := &structs.RegisterRequest{
Datacenter: "dc2",
Node: "foo",
Address: "127.0.0.1",
TaggedAddresses: map[string]string{
"wan": "127.0.0.2",
},
Service: &structs.NodeService{
Service: "http_wan_translation_test",
Address: "127.0.0.1",
Port: 8080,
TaggedAddresses: map[string]structs.ServiceAddress{
"wan": {
Address: "1.2.3.4",
Port: 80,
},
},
},
}
var out struct{}
require.NoError(t, a2.RPC("Catalog.Register", args, &out))
}
// Query for a service in DC2 from DC1.
req, _ := http.NewRequest("GET", "/v1/health/service/http_wan_translation_test?dc=dc2", nil)
resp1 := httptest.NewRecorder()
obj1, err1 := a1.srv.HealthServiceNodes(resp1, req)
require.NoError(t, err1)
require.NoError(t, checkIndex(resp1))
// Expect that DC1 gives us a WAN address (since the node is in DC2).
nodes1, ok := obj1.(structs.CheckServiceNodes)
require.True(t, ok, "obj1 is not a structs.CheckServiceNodes")
require.Len(t, nodes1, 1)
node1 := nodes1[0]
require.NotNil(t, node1.Node)
require.Equal(t, node1.Node.Address, "127.0.0.2")
require.NotNil(t, node1.Service)
require.Equal(t, node1.Service.Address, "1.2.3.4")
require.Equal(t, node1.Service.Port, 80)
// Query DC2 from DC2.
resp2 := httptest.NewRecorder()
obj2, err2 := a2.srv.HealthServiceNodes(resp2, req)
require.NoError(t, err2)
require.NoError(t, checkIndex(resp2))
// Expect that DC2 gives us a local address (since the node is in DC2).
nodes2, ok := obj2.(structs.CheckServiceNodes)
require.True(t, ok, "obj2 is not a structs.ServiceNodes")
require.Len(t, nodes2, 1)
node2 := nodes2[0]
require.NotNil(t, node2.Node)
require.Equal(t, node2.Node.Address, "127.0.0.1")
require.NotNil(t, node2.Service)
require.Equal(t, node2.Service.Address, "127.0.0.1")
require.Equal(t, node2.Service.Port, 8080)
}
func TestHealthConnectServiceNodes(t *testing.T) {
t.Parallel()
assert := assert.New(t)
a := NewTestAgent(t, "")
defer a.Shutdown()
// Register
args := structs.TestRegisterRequestProxy(t)
var out struct{}
assert.Nil(a.RPC("Catalog.Register", args, &out))
// Request
req, _ := http.NewRequest("GET", fmt.Sprintf(
"/v1/health/connect/%s?dc=dc1", args.Service.Proxy.DestinationServiceName), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthConnectServiceNodes(resp, req)
assert.Nil(err)
assertIndex(t, resp)
// Should be a non-nil empty list for checks
nodes := obj.(structs.CheckServiceNodes)
assert.Len(nodes, 1)
assert.Len(nodes[0].Checks, 0)
}
func TestHealthIngressServiceNodes(t *testing.T) {
t.Run("no streaming", func(t *testing.T) {
testHealthIngressServiceNodes(t, ` rpc { enable_streaming = false } use_streaming_backend = false `)
})
t.Run("cache with streaming", func(t *testing.T) {
testHealthIngressServiceNodes(t, ` rpc { enable_streaming = true } use_streaming_backend = true `)
})
}
func testHealthIngressServiceNodes(t *testing.T, agentHCL string) {
a := NewTestAgent(t, agentHCL)
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
// Register gateway
gatewayArgs := structs.TestRegisterIngressGateway(t)
gatewayArgs.Service.Address = "127.0.0.27"
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", gatewayArgs, &out))
args := structs.TestRegisterRequest(t)
require.NoError(t, a.RPC("Catalog.Register", args, &out))
// Associate service to gateway
cfgArgs := &structs.IngressGatewayConfigEntry{
Name: "ingress-gateway",
Kind: structs.IngressGateway,
Listeners: []structs.IngressListener{
{
Port: 8888,
Protocol: "tcp",
Services: []structs.IngressService{
{Name: args.Service.Service},
},
},
},
}
req := structs.ConfigEntryRequest{
Op: structs.ConfigEntryUpsert,
Datacenter: "dc1",
Entry: cfgArgs,
}
var outB bool
require.Nil(t, a.RPC("ConfigEntry.Apply", req, &outB))
require.True(t, outB)
checkResults := func(t *testing.T, obj interface{}) {
nodes := obj.(structs.CheckServiceNodes)
require.Len(t, nodes, 1)
require.Equal(t, structs.ServiceKindIngressGateway, nodes[0].Service.Kind)
require.Equal(t, gatewayArgs.Service.Address, nodes[0].Service.Address)
require.Equal(t, gatewayArgs.Service.Proxy, nodes[0].Service.Proxy)
}
require.True(t, t.Run("associated service", func(t *testing.T) {
req, _ := http.NewRequest("GET", fmt.Sprintf(
"/v1/health/ingress/%s", args.Service.Service), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthIngressServiceNodes(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
checkResults(t, obj)
}))
require.True(t, t.Run("non-associated service", func(t *testing.T) {
req, _ := http.NewRequest("GET",
"/v1/health/connect/notexist", nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthIngressServiceNodes(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
nodes := obj.(structs.CheckServiceNodes)
require.Len(t, nodes, 0)
}))
require.True(t, t.Run("test caching miss", func(t *testing.T) {
// List instances with cache enabled
req, _ := http.NewRequest("GET", fmt.Sprintf(
"/v1/health/ingress/%s?cached", args.Service.Service), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthIngressServiceNodes(resp, req)
require.NoError(t, err)
checkResults(t, obj)
// Should be a cache miss
require.Equal(t, "MISS", resp.Header().Get("X-Cache"))
}))
require.True(t, t.Run("test caching hit", func(t *testing.T) {
// List instances with cache enabled
req, _ := http.NewRequest("GET", fmt.Sprintf(
"/v1/health/ingress/%s?cached", args.Service.Service), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthIngressServiceNodes(resp, req)
require.NoError(t, err)
checkResults(t, obj)
// Should be a cache HIT now!
require.Equal(t, "HIT", resp.Header().Get("X-Cache"))
}))
}
func TestHealthConnectServiceNodes_Filter(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
// Register
args := structs.TestRegisterRequestProxy(t)
args.Service.Address = "127.0.0.55"
var out struct{}
require.NoError(t, a.RPC("Catalog.Register", args, &out))
args = structs.TestRegisterRequestProxy(t)
args.Service.Address = "127.0.0.55"
args.Service.Meta = map[string]string{
"version": "2",
}
args.Service.ID = "web-proxy2"
args.SkipNodeUpdate = true
require.NoError(t, a.RPC("Catalog.Register", args, &out))
req, _ := http.NewRequest("GET", fmt.Sprintf(
"/v1/health/connect/%s?filter=%s",
args.Service.Proxy.DestinationServiceName,
url.QueryEscape("Service.Meta.version == 2")), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthConnectServiceNodes(resp, req)
require.NoError(t, err)
assertIndex(t, resp)
nodes := obj.(structs.CheckServiceNodes)
require.Len(t, nodes, 1)
require.Equal(t, structs.ServiceKindConnectProxy, nodes[0].Service.Kind)
require.Equal(t, args.Service.Address, nodes[0].Service.Address)
require.Equal(t, args.Service.Proxy, nodes[0].Service.Proxy)
}
func TestHealthConnectServiceNodes_PassingFilter(t *testing.T) {
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
// Register
args := structs.TestRegisterRequestProxy(t)
args.Check = &structs.HealthCheck{
Node: args.Node,
Name: "check",
ServiceID: args.Service.Service,
Status: api.HealthCritical,
}
var out struct{}
assert.Nil(t, a.RPC("Catalog.Register", args, &out))
t.Run("bc_no_query_value", func(t *testing.T) {
assert := assert.New(t)
req, _ := http.NewRequest("GET", fmt.Sprintf(
"/v1/health/connect/%s?passing", args.Service.Proxy.DestinationServiceName), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthConnectServiceNodes(resp, req)
assert.Nil(err)
assertIndex(t, resp)
// Should be 0 health check for consul
nodes := obj.(structs.CheckServiceNodes)
assert.Len(nodes, 0)
})
t.Run("passing_true", func(t *testing.T) {
assert := assert.New(t)
req, _ := http.NewRequest("GET", fmt.Sprintf(
"/v1/health/connect/%s?passing=true", args.Service.Proxy.DestinationServiceName), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthConnectServiceNodes(resp, req)
assert.Nil(err)
assertIndex(t, resp)
// Should be 0 health check for consul
nodes := obj.(structs.CheckServiceNodes)
assert.Len(nodes, 0)
})
t.Run("passing_false", func(t *testing.T) {
assert := assert.New(t)
req, _ := http.NewRequest("GET", fmt.Sprintf(
"/v1/health/connect/%s?passing=false", args.Service.Proxy.DestinationServiceName), nil)
resp := httptest.NewRecorder()
obj, err := a.srv.HealthConnectServiceNodes(resp, req)
assert.Nil(err)
assertIndex(t, resp)
// Should be 1
nodes := obj.(structs.CheckServiceNodes)
assert.Len(nodes, 1)
})
t.Run("passing_bad", func(t *testing.T) {
assert := assert.New(t)
req, _ := http.NewRequest("GET", fmt.Sprintf(
"/v1/health/connect/%s?passing=nope-nope", args.Service.Proxy.DestinationServiceName), nil)
resp := httptest.NewRecorder()
a.srv.HealthConnectServiceNodes(resp, req)
assert.Equal(400, resp.Code)
body, err := ioutil.ReadAll(resp.Body)
assert.Nil(err)
assert.True(bytes.Contains(body, []byte("Invalid value for ?passing")))
})
}
func TestFilterNonPassing(t *testing.T) {
t.Parallel()
nodes := structs.CheckServiceNodes{
structs.CheckServiceNode{
Checks: structs.HealthChecks{
&structs.HealthCheck{
Status: api.HealthCritical,
},
&structs.HealthCheck{
Status: api.HealthCritical,
},
},
},
structs.CheckServiceNode{
Checks: structs.HealthChecks{
&structs.HealthCheck{
Status: api.HealthCritical,
},
&structs.HealthCheck{
Status: api.HealthCritical,
},
},
},
structs.CheckServiceNode{
Checks: structs.HealthChecks{
&structs.HealthCheck{
Status: api.HealthPassing,
},
},
},
}
out := filterNonPassing(nodes)
if len(out) != 1 && reflect.DeepEqual(out[0], nodes[2]) {
t.Fatalf("bad: %v", out)
}
}