open-consul/watch/funcs_test.go

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package watch_test
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import (
"encoding/json"
"errors"
"sync"
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"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/hashicorp/consul/agent"
"github.com/hashicorp/consul/agent/connect"
consulapi "github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/watch"
"github.com/stretchr/testify/require"
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)
var errBadContent = errors.New("bad content")
var errTimeout = errors.New("timeout")
var timeout = 5 * time.Second
func makeInvokeCh() chan error {
ch := make(chan error)
time.AfterFunc(timeout, func() { ch <- errTimeout })
return ch
}
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func TestKeyWatch(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
invoke := makeInvokeCh()
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plan := mustParse(t, `{"type":"key", "key":"foo/bar/baz"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
}
v, ok := raw.(*consulapi.KVPair)
if !ok || v == nil {
return // ignore
}
if string(v.Value) != "test" {
invoke <- errBadContent
return
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}
invoke <- nil
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}
var wg sync.WaitGroup
wg.Add(1)
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go func() {
defer wg.Done()
kv := a.Client().KV()
time.Sleep(20 * time.Millisecond)
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pair := &consulapi.KVPair{
Key: "foo/bar/baz",
Value: []byte("test"),
}
if _, err := kv.Put(pair, nil); err != nil {
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t.Fatalf("err: %v", err)
}
}()
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wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
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t.Fatalf("err: %v", err)
}
}()
if err := <-invoke; err != nil {
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t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
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}
func TestKeyWatch_With_PrefixDelete(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
invoke := makeInvokeCh()
plan := mustParse(t, `{"type":"key", "key":"foo/bar/baz"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
}
v, ok := raw.(*consulapi.KVPair)
if !ok || v == nil {
return // ignore
}
if string(v.Value) != "test" {
invoke <- errBadContent
return
}
invoke <- nil
}
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
kv := a.Client().KV()
time.Sleep(20 * time.Millisecond)
pair := &consulapi.KVPair{
Key: "foo/bar/baz",
Value: []byte("test"),
}
if _, err := kv.Put(pair, nil); err != nil {
t.Fatalf("err: %v", err)
}
}()
wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
}
}()
if err := <-invoke; err != nil {
t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
}
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func TestKeyPrefixWatch(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
invoke := makeInvokeCh()
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plan := mustParse(t, `{"type":"keyprefix", "prefix":"foo/"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
}
v, ok := raw.(consulapi.KVPairs)
if !ok || len(v) == 0 {
return
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}
if string(v[0].Key) != "foo/bar" {
invoke <- errBadContent
return
}
invoke <- nil
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}
var wg sync.WaitGroup
wg.Add(1)
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go func() {
defer wg.Done()
kv := a.Client().KV()
time.Sleep(20 * time.Millisecond)
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pair := &consulapi.KVPair{
Key: "foo/bar",
}
if _, err := kv.Put(pair, nil); err != nil {
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t.Fatalf("err: %v", err)
}
}()
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wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
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t.Fatalf("err: %v", err)
}
}()
if err := <-invoke; err != nil {
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t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
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}
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func TestServicesWatch(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
invoke := makeInvokeCh()
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plan := mustParse(t, `{"type":"services"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
}
v, ok := raw.(map[string][]string)
if !ok || len(v) == 0 {
return // ignore
}
if v["consul"] == nil {
invoke <- errBadContent
return
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}
invoke <- nil
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}
var wg sync.WaitGroup
wg.Add(1)
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go func() {
defer wg.Done()
agent := a.Client().Agent()
time.Sleep(20 * time.Millisecond)
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reg := &consulapi.AgentServiceRegistration{
ID: "foo",
Name: "foo",
}
if err := agent.ServiceRegister(reg); err != nil {
t.Fatalf("err: %v", err)
}
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}()
wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
}
}()
if err := <-invoke; err != nil {
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t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
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}
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func TestNodesWatch(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
invoke := makeInvokeCh()
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plan := mustParse(t, `{"type":"nodes"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
}
v, ok := raw.([]*consulapi.Node)
if !ok || len(v) == 0 {
return // ignore
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}
invoke <- nil
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}
var wg sync.WaitGroup
wg.Add(1)
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go func() {
defer wg.Done()
catalog := a.Client().Catalog()
time.Sleep(20 * time.Millisecond)
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reg := &consulapi.CatalogRegistration{
Node: "foobar",
Address: "1.1.1.1",
Datacenter: "dc1",
}
if _, err := catalog.Register(reg, nil); err != nil {
t.Fatalf("err: %v", err)
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}
}()
wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
}
}()
if err := <-invoke; err != nil {
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t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
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}
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func TestServiceWatch(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
invoke := makeInvokeCh()
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plan := mustParse(t, `{"type":"service", "service":"foo", "tag":"bar", "passingonly":true}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
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}
v, ok := raw.([]*consulapi.ServiceEntry)
if !ok || len(v) == 0 {
return // ignore
}
if v[0].Service.ID != "foo" {
invoke <- errBadContent
return
}
invoke <- nil
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}
var wg sync.WaitGroup
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wg.Add(1)
go func() {
defer wg.Done()
agent := a.Client().Agent()
time.Sleep(20 * time.Millisecond)
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reg := &consulapi.AgentServiceRegistration{
ID: "foo",
Name: "foo",
Tags: []string{"bar"},
}
if err := agent.ServiceRegister(reg); err != nil {
t.Fatalf("err: %v", err)
}
}()
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wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
}
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}()
if err := <-invoke; err != nil {
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t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
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}
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func TestChecksWatch_State(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
invoke := makeInvokeCh()
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plan := mustParse(t, `{"type":"checks", "state":"warning"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
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}
v, ok := raw.([]*consulapi.HealthCheck)
if !ok || len(v) == 0 {
return // ignore
}
if v[0].CheckID != "foobar" || v[0].Status != "warning" {
invoke <- errBadContent
return
}
invoke <- nil
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}
var wg sync.WaitGroup
wg.Add(1)
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go func() {
defer wg.Done()
catalog := a.Client().Catalog()
time.Sleep(20 * time.Millisecond)
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reg := &consulapi.CatalogRegistration{
Node: "foobar",
Address: "1.1.1.1",
Datacenter: "dc1",
Check: &consulapi.AgentCheck{
Node: "foobar",
CheckID: "foobar",
Name: "foobar",
Status: consulapi.HealthWarning,
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},
}
if _, err := catalog.Register(reg, nil); err != nil {
t.Fatalf("err: %v", err)
}
}()
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wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
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}
}()
if err := <-invoke; err != nil {
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t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
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}
func TestChecksWatch_Service(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
invoke := makeInvokeCh()
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plan := mustParse(t, `{"type":"checks", "service":"foobar"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
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}
v, ok := raw.([]*consulapi.HealthCheck)
if !ok || len(v) == 0 {
return // ignore
}
if v[0].CheckID != "foobar" {
invoke <- errBadContent
return
}
invoke <- nil
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}
var wg sync.WaitGroup
wg.Add(1)
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go func() {
defer wg.Done()
catalog := a.Client().Catalog()
time.Sleep(20 * time.Millisecond)
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reg := &consulapi.CatalogRegistration{
Node: "foobar",
Address: "1.1.1.1",
Datacenter: "dc1",
Service: &consulapi.AgentService{
ID: "foobar",
Service: "foobar",
},
Check: &consulapi.AgentCheck{
Node: "foobar",
CheckID: "foobar",
Name: "foobar",
Status: consulapi.HealthPassing,
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ServiceID: "foobar",
},
}
if _, err := catalog.Register(reg, nil); err != nil {
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t.Fatalf("err: %v", err)
}
}()
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wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
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}
}()
if err := <-invoke; err != nil {
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t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
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}
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func TestEventWatch(t *testing.T) {
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t.Parallel()
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
invoke := makeInvokeCh()
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plan := mustParse(t, `{"type":"event", "name": "foo"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return
}
v, ok := raw.([]*consulapi.UserEvent)
if !ok || len(v) == 0 {
return // ignore
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}
if string(v[len(v)-1].Name) != "foo" {
invoke <- errBadContent
return
}
invoke <- nil
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}
var wg sync.WaitGroup
wg.Add(1)
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go func() {
defer wg.Done()
event := a.Client().Event()
time.Sleep(20 * time.Millisecond)
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params := &consulapi.UserEvent{Name: "foo"}
if _, _, err := event.Fire(params, nil); err != nil {
t.Fatalf("err: %v", err)
}
}()
wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
}
}()
if err := <-invoke; err != nil {
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t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
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}
func TestConnectRootsWatch(t *testing.T) {
t.Parallel()
// NewTestAgent will bootstrap a new CA
a := agent.NewTestAgent(t.Name(), "")
defer a.Shutdown()
var originalCAID string
invoke := makeInvokeCh()
plan := mustParse(t, `{"type":"connect_roots"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
}
v, ok := raw.(*consulapi.CARootList)
if !ok || v == nil {
return // ignore
}
// Only 1 CA is the bootstrapped state (i.e. first response). Ignore this
// state and wait for the new CA to show up too.
if len(v.Roots) == 1 {
originalCAID = v.ActiveRootID
return
}
assert.NotEmpty(t, originalCAID)
assert.NotEqual(t, originalCAID, v.ActiveRootID)
invoke <- nil
}
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
time.Sleep(20 * time.Millisecond)
// Set a new CA
connect.TestCAConfigSet(t, a, nil)
}()
wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
}
}()
if err := <-invoke; err != nil {
t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
}
func TestConnectLeafWatch(t *testing.T) {
t.Parallel()
// NewTestAgent will bootstrap a new CA
a := agent.NewTestAgent(t.Name(), ``)
defer a.Shutdown()
// Register a web service to get certs for
{
agent := a.Client().Agent()
reg := consulapi.AgentServiceRegistration{
ID: "web",
Name: "web",
Port: 9090,
}
err := agent.ServiceRegister(&reg)
require.Nil(t, err)
}
var lastCert *consulapi.LeafCert
//invoke := makeInvokeCh()
invoke := make(chan error)
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plan := mustParse(t, `{"type":"connect_leaf", "service":"web"}`)
plan.Handler = func(idx uint64, raw interface{}) {
if raw == nil {
return // ignore
}
v, ok := raw.(*consulapi.LeafCert)
if !ok || v == nil {
return // ignore
}
if lastCert == nil {
// Initial fetch, just store the cert and return
lastCert = v
return
}
// TODO(banks): right now the root rotation actually causes Serial numbers
// to reset so these end up all being the same. That needs fixing but it's
// a bigger task than I want to bite off for this PR.
//assert.NotEqual(t, lastCert.SerialNumber, v.SerialNumber)
assert.NotEqual(t, lastCert.CertPEM, v.CertPEM)
assert.NotEqual(t, lastCert.PrivateKeyPEM, v.PrivateKeyPEM)
assert.NotEqual(t, lastCert.ModifyIndex, v.ModifyIndex)
invoke <- nil
}
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
time.Sleep(20 * time.Millisecond)
// Change the CA to trigger a leaf change
connect.TestCAConfigSet(t, a, nil)
}()
wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
}
}()
if err := <-invoke; err != nil {
t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
}
func TestConnectProxyConfigWatch(t *testing.T) {
t.Parallel()
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a := agent.NewTestAgent(t.Name(), `
connect {
enabled = true
proxy {
allow_managed_api_registration = true
}
}
`)
defer a.Shutdown()
// Register a local agent service with a managed proxy
reg := &consulapi.AgentServiceRegistration{
Name: "web",
Port: 8080,
Connect: &consulapi.AgentServiceConnect{
Proxy: &consulapi.AgentServiceConnectProxy{
Config: map[string]interface{}{
"foo": "bar",
},
},
},
}
client := a.Client()
agent := client.Agent()
err := agent.ServiceRegister(reg)
require.NoError(t, err)
invoke := makeInvokeCh()
plan := mustParse(t, `{"type":"connect_proxy_config", "proxy_service_id":"web-proxy"}`)
plan.HybridHandler = func(blockParamVal watch.BlockingParamVal, raw interface{}) {
if raw == nil {
return // ignore
}
v, ok := raw.(*consulapi.ConnectProxyConfig)
if !ok || v == nil {
return // ignore
}
invoke <- nil
}
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
time.Sleep(20 * time.Millisecond)
// Change the proxy's config
reg.Connect.Proxy.Config["foo"] = "buzz"
reg.Connect.Proxy.Config["baz"] = "qux"
err := agent.ServiceRegister(reg)
require.NoError(t, err)
}()
wg.Add(1)
go func() {
defer wg.Done()
if err := plan.Run(a.HTTPAddr()); err != nil {
t.Fatalf("err: %v", err)
}
}()
if err := <-invoke; err != nil {
t.Fatalf("err: %v", err)
}
plan.Stop()
wg.Wait()
}
func mustParse(t *testing.T, q string) *watch.Plan {
t.Helper()
var params map[string]interface{}
if err := json.Unmarshal([]byte(q), &params); err != nil {
t.Fatal(err)
}
plan, err := watch.Parse(params)
if err != nil {
t.Fatalf("err: %v", err)
}
return plan
}