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agent_endpoint_test.go
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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1
package agent
import (
"bytes"
"context"
"crypto/tls"
"crypto/x509"
"encoding/json"
"fmt"
"io"
"net/http"
"net/http/httptest"
"net/url"
"os"
"strconv"
"strings"
"testing"
"time"
"github.com/armon/go-metrics"
"github.com/mitchellh/hashstructure"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/time/rate"
"github.com/hashicorp/go-hclog"
"github.com/hashicorp/go-uuid"
"github.com/hashicorp/serf/serf"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/acl/resolver"
"github.com/hashicorp/consul/agent/config"
"github.com/hashicorp/consul/agent/connect"
"github.com/hashicorp/consul/agent/connect/ca"
"github.com/hashicorp/consul/agent/consul"
"github.com/hashicorp/consul/agent/debug"
"github.com/hashicorp/consul/agent/local"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/agent/token"
tokenStore "github.com/hashicorp/consul/agent/token"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/envoyextensions/xdscommon"
"github.com/hashicorp/consul/lib"
"github.com/hashicorp/consul/sdk/testutil"
"github.com/hashicorp/consul/sdk/testutil/retry"
"github.com/hashicorp/consul/testrpc"
"github.com/hashicorp/consul/types"
"github.com/hashicorp/consul/version"
)
func createACLTokenWithAgentReadPolicy(t *testing.T, srv *HTTPHandlers) string {
policyReq := &structs.ACLPolicy{
Name: "agent-read",
Rules: `agent_prefix "" { policy = "read" }`,
}
req, _ := http.NewRequest("PUT", "/v1/acl/policy", jsonReader(policyReq))
req.Header.Add("X-Consul-Token", "root")
resp := httptest.NewRecorder()
srv.h.ServeHTTP(resp, req)
require.Equal(t, http.StatusOK, resp.Code)
tokenReq := &structs.ACLToken{
Description: "agent-read-token-for-test",
Policies: []structs.ACLTokenPolicyLink{{Name: "agent-read"}},
}
req, _ = http.NewRequest("PUT", "/v1/acl/token", jsonReader(tokenReq))
req.Header.Add("X-Consul-Token", "root")
resp = httptest.NewRecorder()
srv.h.ServeHTTP(resp, req)
require.Equal(t, http.StatusOK, resp.Code)
svcToken := &structs.ACLToken{}
dec := json.NewDecoder(resp.Body)
err := dec.Decode(svcToken)
require.NoError(t, err)
return svcToken.SecretID
}
func TestAgent_Services(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
srv1 := &structs.NodeService{
ID: "mysql",
Service: "mysql",
Tags: []string{"primary"},
Meta: map[string]string{
"foo": "bar",
},
Port: 5000,
}
require.NoError(t, a.State.AddServiceWithChecks(srv1, nil, "", false))
req, _ := http.NewRequest("GET", "/v1/agent/services", nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
require.Equal(t, http.StatusOK, resp.Code)
decoder := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := decoder.Decode(&val)
require.NoError(t, err)
assert.Lenf(t, val, 1, "bad services: %v", val)
assert.Equal(t, 5000, val["mysql"].Port)
assert.Equal(t, srv1.Meta, val["mysql"].Meta)
}
func TestAgent_ServicesFiltered(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
srv1 := &structs.NodeService{
ID: "mysql",
Service: "mysql",
Tags: []string{"primary"},
Meta: map[string]string{
"foo": "bar",
},
Port: 5000,
}
require.NoError(t, a.State.AddServiceWithChecks(srv1, nil, "", false))
// Add another service
srv2 := &structs.NodeService{
ID: "redis",
Service: "redis",
Tags: []string{"kv"},
Meta: map[string]string{
"foo": "bar",
},
Port: 1234,
}
require.NoError(t, a.State.AddServiceWithChecks(srv2, nil, "", false))
req, _ := http.NewRequest("GET", "/v1/agent/services?filter="+url.QueryEscape("foo in Meta"), nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
require.Equal(t, http.StatusOK, resp.Code)
decoder := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := decoder.Decode(&val)
require.NoError(t, err)
require.Len(t, val, 2)
req, _ = http.NewRequest("GET", "/v1/agent/services?filter="+url.QueryEscape("kv in Tags"), nil)
resp = httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
require.Equal(t, http.StatusOK, resp.Code)
decoder = json.NewDecoder(resp.Body)
val = make(map[string]*api.AgentService)
err = decoder.Decode(&val)
require.NoError(t, err)
require.Len(t, val, 1)
}
// This tests that the agent services endpoint (/v1/agent/services) returns
// Connect proxies.
func TestAgent_Services_ExternalConnectProxy(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
srv1 := &structs.NodeService{
Kind: structs.ServiceKindConnectProxy,
ID: "db-proxy",
Service: "db-proxy",
Port: 5000,
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "db",
Upstreams: structs.TestUpstreams(t, false),
},
}
a.State.AddServiceWithChecks(srv1, nil, "", false)
req, _ := http.NewRequest("GET", "/v1/agent/services", nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
decoder := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := decoder.Decode(&val)
require.NoError(t, err)
assert.Len(t, val, 1)
actual := val["db-proxy"]
assert.Equal(t, api.ServiceKindConnectProxy, actual.Kind)
assert.Equal(t, srv1.Proxy.ToAPI(), actual.Proxy)
}
// Thie tests that a sidecar-registered service is returned as expected.
func TestAgent_Services_Sidecar(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
srv1 := &structs.NodeService{
Kind: structs.ServiceKindConnectProxy,
ID: "db-sidecar-proxy",
Service: "db-sidecar-proxy",
Port: 5000,
// Set this internal state that we expect sidecar registrations to have.
LocallyRegisteredAsSidecar: true,
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "db",
Upstreams: structs.TestUpstreams(t, false),
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
},
}
a.State.AddServiceWithChecks(srv1, nil, "", false)
req, _ := http.NewRequest("GET", "/v1/agent/services", nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
decoder := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := decoder.Decode(&val)
require.NoError(t, err)
assert.Len(t, val, 1)
actual := val["db-sidecar-proxy"]
require.NotNil(t, actual)
assert.Equal(t, api.ServiceKindConnectProxy, actual.Kind)
assert.Equal(t, srv1.Proxy.ToAPI(), actual.Proxy)
// Sanity check that LocalRegisteredAsSidecar is not in the output (assuming
// JSON encoding). Right now this is not the case because the services
// endpoint happens to use the api struct which doesn't include that field,
// but this test serves as a regression test incase we change the endpoint to
// return the internal struct later and accidentally expose some "internal"
// state.
assert.NotContains(t, resp.Body.String(), "LocallyRegisteredAsSidecar")
assert.NotContains(t, resp.Body.String(), "locally_registered_as_sidecar")
}
// This tests that a mesh gateway service is returned as expected.
func TestAgent_Services_MeshGateway(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
srv1 := &structs.NodeService{
Kind: structs.ServiceKindMeshGateway,
ID: "mg-dc1-01",
Service: "mg-dc1",
Port: 8443,
Proxy: structs.ConnectProxyConfig{
Config: map[string]interface{}{
"foo": "bar",
},
},
}
a.State.AddServiceWithChecks(srv1, nil, "", false)
req, _ := http.NewRequest("GET", "/v1/agent/services", nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := dec.Decode(&val)
require.NoError(t, err)
require.Len(t, val, 1)
actual := val["mg-dc1-01"]
require.NotNil(t, actual)
require.Equal(t, api.ServiceKindMeshGateway, actual.Kind)
// Proxy.ToAPI() creates an empty Upstream list instead of keeping nil so do the same with actual.
if actual.Proxy.Upstreams == nil {
actual.Proxy.Upstreams = make([]api.Upstream, 0)
}
require.Equal(t, srv1.Proxy.ToAPI(), actual.Proxy)
}
// This tests that a terminating gateway service is returned as expected.
func TestAgent_Services_TerminatingGateway(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
srv1 := &structs.NodeService{
Kind: structs.ServiceKindTerminatingGateway,
ID: "tg-dc1-01",
Service: "tg-dc1",
Port: 8443,
Proxy: structs.ConnectProxyConfig{
Config: map[string]interface{}{
"foo": "bar",
},
},
}
require.NoError(t, a.State.AddServiceWithChecks(srv1, nil, "", false))
req, _ := http.NewRequest("GET", "/v1/agent/services", nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := dec.Decode(&val)
require.NoError(t, err)
require.Len(t, val, 1)
actual := val["tg-dc1-01"]
require.NotNil(t, actual)
require.Equal(t, api.ServiceKindTerminatingGateway, actual.Kind)
// Proxy.ToAPI() creates an empty Upstream list instead of keeping nil so do the same with actual.
if actual.Proxy.Upstreams == nil {
actual.Proxy.Upstreams = make([]api.Upstream, 0)
}
require.Equal(t, srv1.Proxy.ToAPI(), actual.Proxy)
}
func TestAgent_Services_ACLFilter(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, TestACLConfig())
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
services := []*structs.NodeService{
{
ID: "web",
Service: "web",
Port: 5000,
},
{
ID: "api",
Service: "api",
Port: 6000,
},
}
for _, s := range services {
a.State.AddServiceWithChecks(s, nil, "", false)
}
t.Run("no token", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/v1/agent/services", nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := dec.Decode(&val)
if err != nil {
t.Fatalf("Err: %v", err)
}
if len(val) != 0 {
t.Fatalf("bad: %v", val)
}
require.Len(t, val, 0)
require.Empty(t, resp.Header().Get("X-Consul-Results-Filtered-By-ACLs"))
})
t.Run("limited token", func(t *testing.T) {
token := testCreateToken(t, a, `
service "web" {
policy = "read"
}
`)
req := httptest.NewRequest("GET", "/v1/agent/services", nil)
req.Header.Add("X-Consul-Token", token)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
if err := dec.Decode(&val); err != nil {
t.Fatalf("Err: %v", err)
}
require.Len(t, val, 1)
require.NotEmpty(t, resp.Header().Get("X-Consul-Results-Filtered-By-ACLs"))
})
t.Run("root token", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/v1/agent/services", nil)
req.Header.Add("X-Consul-Token", "root")
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := dec.Decode(&val)
if err != nil {
t.Fatalf("Err: %v", err)
}
require.Len(t, val, 2)
require.Empty(t, resp.Header().Get("X-Consul-Results-Filtered-By-ACLs"))
})
// ensure ACL filtering occurs before bexpr filtering.
const bexprMatchingUserTokenPermissions = "Service matches `web.*`"
const bexprNotMatchingUserTokenPermissions = "Service matches `api.*`"
tokenWithWebRead := testCreateToken(t, a, `
service "web" {
policy = "read"
}
`)
t.Run("request with filter that matches token permissions returns 1 result and ResultsFilteredByACLs equal to true", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/v1/agent/services?filter="+url.QueryEscape(bexprMatchingUserTokenPermissions), nil)
req.Header.Add("X-Consul-Token", tokenWithWebRead)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := dec.Decode(&val)
if err != nil {
t.Fatalf("Err: %v", err)
}
require.Len(t, val, 1)
require.NotEmpty(t, resp.Header().Get("X-Consul-Results-Filtered-By-ACLs"))
})
t.Run("request with filter that does not match token permissions returns 0 results and ResultsFilteredByACLs equal to true", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/v1/agent/services?filter="+url.QueryEscape(bexprNotMatchingUserTokenPermissions), nil)
req.Header.Add("X-Consul-Token", tokenWithWebRead)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := dec.Decode(&val)
if err != nil {
t.Fatalf("Err: %v", err)
}
require.Len(t, val, 0)
require.NotEmpty(t, resp.Header().Get("X-Consul-Results-Filtered-By-ACLs"))
})
t.Run("request with filter that would normally match but without any token returns zero results and ResultsFilteredByACLs equal to false", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/v1/agent/services?filter="+url.QueryEscape(bexprNotMatchingUserTokenPermissions), nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[string]*api.AgentService
err := dec.Decode(&val)
if err != nil {
t.Fatalf("Err: %v", err)
}
require.Len(t, val, 0)
require.Empty(t, resp.Header().Get("X-Consul-Results-Filtered-By-ACLs"))
})
}
func TestAgent_Service(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, TestACLConfig()+`
services {
name = "web"
port = 8181
tagged_addresses {
wan {
address = "198.18.0.1"
port = 1818
}
}
}
`)
defer a.Shutdown()
testrpc.WaitForLeader(t, a.RPC, "dc1")
proxy := structs.TestConnectProxyConfig(t)
proxy.DestinationServiceID = "web1"
// Define a valid local sidecar proxy service
sidecarProxy := &structs.ServiceDefinition{
Kind: structs.ServiceKindConnectProxy,
Name: "web-sidecar-proxy",
Check: structs.CheckType{
TCP: "127.0.0.1:8000",
Interval: 10 * time.Second,
},
Port: 8000,
Proxy: &proxy,
Weights: &structs.Weights{
Passing: 1,
Warning: 1,
},
EnterpriseMeta: *structs.DefaultEnterpriseMetaInDefaultPartition(),
}
// Define an updated version. Be careful to copy it.
updatedProxy := *sidecarProxy
updatedProxy.Port = 9999
// Mangle the proxy config/upstreams into the expected for with defaults and
// API struct types.
expectProxy := proxy
expectProxy.Upstreams =
structs.TestAddDefaultsToUpstreams(t, sidecarProxy.Proxy.Upstreams, *structs.DefaultEnterpriseMetaInDefaultPartition())
expectedResponse := &api.AgentService{
Kind: api.ServiceKindConnectProxy,
ID: "web-sidecar-proxy",
Service: "web-sidecar-proxy",
Port: 8000,
Proxy: expectProxy.ToAPI(),
Weights: api.AgentWeights{
Passing: 1,
Warning: 1,
},
Meta: map[string]string{},
Tags: []string{},
Datacenter: "dc1",
}
fillAgentServiceEnterpriseMeta(expectedResponse, structs.DefaultEnterpriseMetaInDefaultPartition())
hash1, err := hashstructure.Hash(expectedResponse, nil)
require.NoError(t, err, "failed to generate hash")
expectedResponse.ContentHash = fmt.Sprintf("%x", hash1)
// Copy and modify
updatedResponse := *expectedResponse
updatedResponse.Port = 9999
updatedResponse.ContentHash = "" // clear field before hashing
hash2, err := hashstructure.Hash(updatedResponse, nil)
require.NoError(t, err, "failed to generate hash")
updatedResponse.ContentHash = fmt.Sprintf("%x", hash2)
// Simple response for non-proxy service registered in TestAgent config
expectWebResponse := &api.AgentService{
ID: "web",
Service: "web",
Port: 8181,
Weights: api.AgentWeights{
Passing: 1,
Warning: 1,
},
TaggedAddresses: map[string]api.ServiceAddress{
"wan": {
Address: "198.18.0.1",
Port: 1818,
},
},
Meta: map[string]string{},
Tags: []string{},
Datacenter: "dc1",
}
fillAgentServiceEnterpriseMeta(expectWebResponse, structs.DefaultEnterpriseMetaInDefaultPartition())
hash3, err := hashstructure.Hash(expectWebResponse, nil)
require.NoError(t, err, "failed to generate hash")
expectWebResponse.ContentHash = fmt.Sprintf("%x", hash3)
tests := []struct {
name string
policies string
url string
updateFunc func()
wantWait time.Duration
wantCode int
wantErr string
wantResp *api.AgentService
}{
{
name: "simple fetch - proxy",
url: "/v1/agent/service/web-sidecar-proxy",
wantCode: 200,
wantResp: expectedResponse,
},
{
name: "simple fetch - non-proxy",
url: "/v1/agent/service/web",
wantCode: 200,
wantResp: expectWebResponse,
},
{
name: "blocking fetch timeout, no change",
url: "/v1/agent/service/web-sidecar-proxy?hash=" + expectedResponse.ContentHash + "&wait=100ms",
wantWait: 100 * time.Millisecond,
wantCode: 200,
wantResp: expectedResponse,
},
{
name: "blocking fetch old hash should return immediately",
url: "/v1/agent/service/web-sidecar-proxy?hash=123456789abcd&wait=10m",
wantCode: 200,
wantResp: expectedResponse,
},
{
name: "blocking fetch returns change",
url: "/v1/agent/service/web-sidecar-proxy?hash=" + expectedResponse.ContentHash,
updateFunc: func() {
time.Sleep(100 * time.Millisecond)
// Re-register with new proxy config, make sure we copy the struct so we
// don't alter it and affect later test cases.
req, _ := http.NewRequest("PUT", "/v1/agent/service/register", jsonReader(updatedProxy))
req.Header.Add("X-Consul-Token", "root")
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
require.Equal(t, 200, resp.Code, "body: %s", resp.Body.String())
},
wantWait: 100 * time.Millisecond,
wantCode: 200,
wantResp: &updatedResponse,
},
{
// This test exercises a case that caused a busy loop to eat CPU for the
// entire duration of the blocking query. If a service gets re-registered
// wth same proxy config then the old proxy config chan is closed causing
// blocked watchset.Watch to return false indicating a change. But since
// the hash is the same when the blocking fn is re-called we should just
// keep blocking on the next iteration. The bug hit was that the WatchSet
// ws was not being reset in the loop and so when you try to `Watch` it
// the second time it just returns immediately making the blocking loop
// into a busy-poll!
//
// This test though doesn't catch that because busy poll still has the
// correct external behavior. I don't want to instrument the loop to
// assert it's not executing too fast here as I can't think of a clean way
// and the issue is fixed now so this test doesn't actually catch the
// error, but does provide an easy way to verify the behavior by hand:
// 1. Make this test fail e.g. change wantErr to true
// 2. Add a log.Println or similar into the blocking loop/function
// 3. See whether it's called just once or many times in a tight loop.
name: "blocking fetch interrupted with no change (same hash)",
url: "/v1/agent/service/web-sidecar-proxy?wait=200ms&hash=" + expectedResponse.ContentHash,
updateFunc: func() {
time.Sleep(100 * time.Millisecond)
// Re-register with _same_ proxy config
req, _ := http.NewRequest("PUT", "/v1/agent/service/register", jsonReader(sidecarProxy))
req.Header.Add("X-Consul-Token", "root")
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
require.Equal(t, 200, resp.Code, "body: %s", resp.Body.String())
},
wantWait: 200 * time.Millisecond,
wantCode: 200,
wantResp: expectedResponse,
},
{
// When we reload config, the agent pauses Anti-entropy, then clears all
// services (which causes their watch chans to be closed) before loading
// state from config/snapshot again). If we do that naively then we don't
// just get a spurios wakeup on the watch if the service didn't change,
// but we get it wakeup and then race with the reload and probably see no
// services and return a 404 error which is gross. This test exercises
// that - even though the registrations were from API not config, they are
// persisted and cleared/reloaded from snapshot which has same effect.
//
// The fix for this test is to allow the same mechanism that pauses
// Anti-entropy during reload to also pause the hash blocking loop so we
// don't resume until the state is reloaded and we get a chance to see if
// it actually changed or not.
name: "blocking fetch interrupted by reload shouldn't 404 - no change",
url: "/v1/agent/service/web-sidecar-proxy?wait=200ms&hash=" + expectedResponse.ContentHash,
updateFunc: func() {
time.Sleep(100 * time.Millisecond)
// Reload
require.NoError(t, a.reloadConfigInternal(a.Config))
},
// Should eventually timeout since there is no actual change
wantWait: 200 * time.Millisecond,
wantCode: 200,
wantResp: expectedResponse,
},
{
// As above but test actually altering the service with the config reload.
// This simulates the API registration being overridden by a different one
// on disk during reload.
name: "blocking fetch interrupted by reload shouldn't 404 - changes",
url: "/v1/agent/service/web-sidecar-proxy?wait=10m&hash=" + expectedResponse.ContentHash,
updateFunc: func() {
time.Sleep(100 * time.Millisecond)
// Reload
newConfig := *a.Config
newConfig.Services = append(newConfig.Services, &updatedProxy)
require.NoError(t, a.reloadConfigInternal(&newConfig))
},
wantWait: 100 * time.Millisecond,
wantCode: 200,
wantResp: &updatedResponse,
},
{
name: "err: non-existent proxy",
url: "/v1/agent/service/nope",
wantErr: fmt.Sprintf("unknown service ID: %s", structs.NewServiceID("nope", nil)),
},
{
name: "err: bad ACL for service",
url: "/v1/agent/service/web-sidecar-proxy",
// Limited token doesn't grant read to the service
policies: `
key "" {
policy = "read"
}
`,
// Note that because we return ErrPermissionDenied and handle writing
// status at a higher level helper this actually gets a 200 in this test
// case so just assert that it was an error.
wantErr: "Permission denied",
},
{
name: "good ACL for service",
url: "/v1/agent/service/web-sidecar-proxy",
// Limited token doesn't grant read to the service
policies: `
service "web-sidecar-proxy" {
policy = "read"
}
`,
wantCode: 200,
wantResp: expectedResponse,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// Register the basic service to ensure it's in a known state to start.
{
req, _ := http.NewRequest("PUT", "/v1/agent/service/register", jsonReader(sidecarProxy))
req.Header.Add("X-Consul-Token", "root")
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
require.Equal(t, 200, resp.Code, "body: %s", resp.Body.String())
}
req, _ := http.NewRequest("GET", tt.url, nil)
// Inject the root token for tests that don't care about ACL
token := "root"
if tt.policies != "" {
// Create new token and use that.
token = testCreateToken(t, a, tt.policies)
}
req.Header.Set("X-Consul-Token", token)
resp := httptest.NewRecorder()
if tt.updateFunc != nil {
go tt.updateFunc()
}
start := time.Now()
a.srv.h.ServeHTTP(resp, req)
elapsed := time.Since(start)
if tt.wantErr != "" {
require.Contains(t, strings.ToLower(resp.Body.String()), strings.ToLower(tt.wantErr))
}
if tt.wantCode != 0 {
require.Equal(t, tt.wantCode, resp.Code, "body: %s", resp.Body.String())
}
if tt.wantWait != 0 {
assert.True(t, elapsed >= tt.wantWait, "should have waited at least %s, "+
"took %s", tt.wantWait, elapsed)
}
if tt.wantResp != nil {
dec := json.NewDecoder(resp.Body)
val := &api.AgentService{}
err := dec.Decode(&val)
require.NoError(t, err)
assert.Equal(t, tt.wantResp, val)
assert.Equal(t, tt.wantResp.ContentHash, resp.Header().Get("X-Consul-ContentHash"))
}
})
}
}
func TestAgent_Checks(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
chk1 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mysql",
Name: "mysql",
Interval: "30s",
Timeout: "5s",
Status: api.HealthPassing,
}
a.State.AddCheck(chk1, "", false)
req, _ := http.NewRequest("GET", "/v1/agent/checks", nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[types.CheckID]*structs.HealthCheck
err := dec.Decode(&val)
if err != nil {
t.Fatalf("Err: %v", err)
}
if len(val) != 1 {
t.Fatalf("bad checks: %v", val)
}
if val["mysql"].Status != api.HealthPassing {
t.Fatalf("bad check: %v", val)
}
if val["mysql"].Node != chk1.Node {
t.Fatalf("bad check: %v", val)
}
if val["mysql"].Interval != chk1.Interval {
t.Fatalf("bad check: %v", val)
}
if val["mysql"].Timeout != chk1.Timeout {
t.Fatalf("bad check: %v", val)
}
}
func TestAgent_ChecksWithFilter(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
chk1 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mysql",
Name: "mysql",
Status: api.HealthPassing,
}
a.State.AddCheck(chk1, "", false)
chk2 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "redis",
Name: "redis",
Status: api.HealthPassing,
}
a.State.AddCheck(chk2, "", false)
req, _ := http.NewRequest("GET", "/v1/agent/checks?filter="+url.QueryEscape("Name == `redis`"), nil)
resp := httptest.NewRecorder()
a.srv.h.ServeHTTP(resp, req)
dec := json.NewDecoder(resp.Body)
var val map[types.CheckID]*structs.HealthCheck
err := dec.Decode(&val)
require.NoError(t, err)
require.Len(t, val, 1)
_, ok := val["redis"]
require.True(t, ok)
}
func TestAgent_HealthServiceByID(t *testing.T) {
if testing.Short() {
t.Skip("too slow for testing.Short")
}
t.Parallel()
a := NewTestAgent(t, "")
defer a.Shutdown()
testrpc.WaitForTestAgent(t, a.RPC, "dc1")
service := &structs.NodeService{
ID: "mysql",
Service: "mysql",
}
serviceReq := AddServiceRequest{
Service: service,
chkTypes: nil,
persist: false,
token: "",
Source: ConfigSourceLocal,
}
if err := a.AddService(serviceReq); err != nil {
t.Fatalf("err: %v", err)
}
serviceReq.Service = &structs.NodeService{
ID: "mysql2",
Service: "mysql2",
}
if err := a.AddService(serviceReq); err != nil {
t.Fatalf("err: %v", err)
}
serviceReq.Service = &structs.NodeService{
ID: "mysql3",
Service: "mysql3",
}
if err := a.AddService(serviceReq); err != nil {
t.Fatalf("err: %v", err)
}
chk1 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mysql",
Name: "mysql",
ServiceID: "mysql",
Status: api.HealthPassing,
}
err := a.State.AddCheck(chk1, "", false)
if err != nil {
t.Fatalf("Err: %v", err)
}
chk2 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mysql",
Name: "mysql",
ServiceID: "mysql",
Status: api.HealthPassing,
}
err = a.State.AddCheck(chk2, "", false)
if err != nil {
t.Fatalf("Err: %v", err)
}
chk3 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mysql2",
Name: "mysql2",
ServiceID: "mysql2",
Status: api.HealthPassing,
}
err = a.State.AddCheck(chk3, "", false)
if err != nil {
t.Fatalf("Err: %v", err)
}
chk4 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mysql2",
Name: "mysql2",
ServiceID: "mysql2",
Status: api.HealthWarning,
}
err = a.State.AddCheck(chk4, "", false)
if err != nil {
t.Fatalf("Err: %v", err)
}
chk5 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mysql3",
Name: "mysql3",
ServiceID: "mysql3",
Status: api.HealthMaint,
}
err = a.State.AddCheck(chk5, "", false)
if err != nil {
t.Fatalf("Err: %v", err)
}
chk6 := &structs.HealthCheck{
Node: a.Config.NodeName,
CheckID: "mysql3",
Name: "mysql3",
ServiceID: "mysql3",