luxolus/open-nomad
2
0
Fork 0
Code Issues 1 Pull requests Packages Releases Wiki Activity
open-nomad/command/agent/agent_test.go
Alex Dadgar 747d67eb3f Allow tuning of heartbeat ttls 
This PR allows tuning of heartbeat TTLs. An example of very aggressive
settings is as follows:

```
server {
  heartbeat_grace = "1s"
  min_heartbeat_ttl = "1s"
  max_heartbeats_per_second = 200.0
}
```
2017-07-19 09:38:35 -07:00

596 lines
16 KiB
Go
Raw Blame History

package agent
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"net"
"os"
"strings"
"testing"
"time"
"github.com/hashicorp/nomad/helper"
"github.com/hashicorp/nomad/nomad"
sconfig "github.com/hashicorp/nomad/nomad/structs/config"
)
func getPort() int {
addr, err := net.ResolveTCPAddr("tcp", "127.0.0.1:0")
if err != nil {
panic(err)
}
l, err := net.ListenTCP("tcp", addr)
if err != nil {
panic(err)
}
defer l.Close()
return l.Addr().(*net.TCPAddr).Port
}
func tmpDir(t testing.TB) string {
dir, err := ioutil.TempDir("", "nomad")
if err != nil {
t.Fatalf("err: %v", err)
}
return dir
}
func makeAgent(t testing.TB, cb func(*Config)) (string, *Agent) {
dir := tmpDir(t)
conf := DevConfig()
// Customize the server configuration
config := nomad.DefaultConfig()
conf.NomadConfig = config
// Set the data_dir
conf.DataDir = dir
conf.NomadConfig.DataDir = dir
// Bind and set ports
conf.BindAddr = "127.0.0.1"
conf.Ports = &Ports{
HTTP: getPort(),
RPC: getPort(),
Serf: getPort(),
}
conf.NodeName = fmt.Sprintf("Node %d", conf.Ports.RPC)
conf.Consul = sconfig.DefaultConsulConfig()
conf.Vault.Enabled = new(bool)
// Tighten the Serf timing
config.SerfConfig.MemberlistConfig.SuspicionMult = 2
config.SerfConfig.MemberlistConfig.RetransmitMult = 2
config.SerfConfig.MemberlistConfig.ProbeTimeout = 50 * time.Millisecond
config.SerfConfig.MemberlistConfig.ProbeInterval = 100 * time.Millisecond
config.SerfConfig.MemberlistConfig.GossipInterval = 100 * time.Millisecond
// Tighten the Raft timing
config.RaftConfig.LeaderLeaseTimeout = 20 * time.Millisecond
config.RaftConfig.HeartbeatTimeout = 40 * time.Millisecond
config.RaftConfig.ElectionTimeout = 40 * time.Millisecond
config.RaftConfig.StartAsLeader = true
config.RaftTimeout = 500 * time.Millisecond
if cb != nil {
cb(conf)
}
if err := conf.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
agent, err := NewAgent(conf, os.Stderr)
if err != nil {
os.RemoveAll(dir)
t.Fatalf("err: %v", err)
}
return dir, agent
}
func TestAgent_RPCPing(t *testing.T) {
dir, agent := makeAgent(t, nil)
defer os.RemoveAll(dir)
defer agent.Shutdown()
var out struct{}
if err := agent.RPC("Status.Ping", struct{}{}, &out); err != nil {
t.Fatalf("err: %v", err)
}
}
func TestAgent_ServerConfig(t *testing.T) {
conf := DefaultConfig()
conf.DevMode = true // allow localhost for advertise addrs
a := &Agent{config: conf}
conf.AdvertiseAddrs.Serf = "127.0.0.1:4000"
conf.AdvertiseAddrs.RPC = "127.0.0.1:4001"
conf.AdvertiseAddrs.HTTP = "10.10.11.1:4005"
// Parses the advertise addrs correctly
if err := conf.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
out, err := a.serverConfig()
if err != nil {
t.Fatalf("err: %s", err)
}
serfAddr := out.SerfConfig.MemberlistConfig.AdvertiseAddr
if serfAddr != "127.0.0.1" {
t.Fatalf("expect 127.0.0.1, got: %s", serfAddr)
}
serfPort := out.SerfConfig.MemberlistConfig.AdvertisePort
if serfPort != 4000 {
t.Fatalf("expected 4000, got: %d", serfPort)
}
// Assert addresses weren't changed
if addr := conf.AdvertiseAddrs.RPC; addr != "127.0.0.1:4001" {
t.Fatalf("bad rpc advertise addr: %#v", addr)
}
if addr := conf.AdvertiseAddrs.HTTP; addr != "10.10.11.1:4005" {
t.Fatalf("expect 10.11.11.1:4005, got: %v", addr)
}
if addr := conf.Addresses.RPC; addr != "0.0.0.0" {
t.Fatalf("expect 0.0.0.0, got: %v", addr)
}
// Sets up the ports properly
conf.Addresses.RPC = ""
conf.Addresses.Serf = ""
conf.Ports.RPC = 4003
conf.Ports.Serf = 4004
if err := conf.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
out, err = a.serverConfig()
if err != nil {
t.Fatalf("err: %s", err)
}
if addr := out.RPCAddr.Port; addr != 4003 {
t.Fatalf("expect 4003, got: %d", out.RPCAddr.Port)
}
if port := out.SerfConfig.MemberlistConfig.BindPort; port != 4004 {
t.Fatalf("expect 4004, got: %d", port)
}
// Prefers advertise over bind addr
conf.BindAddr = "127.0.0.3"
conf.Addresses.HTTP = "127.0.0.2"
conf.Addresses.RPC = "127.0.0.2"
conf.Addresses.Serf = "127.0.0.2"
conf.AdvertiseAddrs.HTTP = "10.0.0.10"
conf.AdvertiseAddrs.RPC = ""
conf.AdvertiseAddrs.Serf = "10.0.0.12:4004"
if err := conf.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
out, err = a.serverConfig()
fmt.Println(conf.Addresses.RPC)
if err != nil {
t.Fatalf("err: %s", err)
}
if addr := out.RPCAddr.IP.String(); addr != "127.0.0.2" {
t.Fatalf("expect 127.0.0.2, got: %s", addr)
}
if port := out.RPCAddr.Port; port != 4003 {
t.Fatalf("expect 4647, got: %d", port)
}
if addr := out.SerfConfig.MemberlistConfig.BindAddr; addr != "127.0.0.2" {
t.Fatalf("expect 127.0.0.2, got: %s", addr)
}
if port := out.SerfConfig.MemberlistConfig.BindPort; port != 4004 {
t.Fatalf("expect 4648, got: %d", port)
}
if addr := conf.Addresses.HTTP; addr != "127.0.0.2" {
t.Fatalf("expect 127.0.0.2, got: %s", addr)
}
if addr := conf.Addresses.RPC; addr != "127.0.0.2" {
t.Fatalf("expect 127.0.0.2, got: %s", addr)
}
if addr := conf.Addresses.Serf; addr != "127.0.0.2" {
t.Fatalf("expect 10.0.0.12, got: %s", addr)
}
if addr := conf.normalizedAddrs.HTTP; addr != "127.0.0.2:4646" {
t.Fatalf("expect 127.0.0.2:4646, got: %s", addr)
}
if addr := conf.normalizedAddrs.RPC; addr != "127.0.0.2:4003" {
t.Fatalf("expect 127.0.0.2:4003, got: %s", addr)
}
if addr := conf.normalizedAddrs.Serf; addr != "127.0.0.2:4004" {
t.Fatalf("expect 10.0.0.12:4004, got: %s", addr)
}
if addr := conf.AdvertiseAddrs.HTTP; addr != "10.0.0.10:4646" {
t.Fatalf("expect 10.0.0.10:4646, got: %s", addr)
}
if addr := conf.AdvertiseAddrs.RPC; addr != "127.0.0.2:4003" {
t.Fatalf("expect 127.0.0.2:4003, got: %s", addr)
}
if addr := conf.AdvertiseAddrs.Serf; addr != "10.0.0.12:4004" {
t.Fatalf("expect 10.0.0.12:4004, got: %s", addr)
}
conf.Server.NodeGCThreshold = "42g"
if err := conf.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
out, err = a.serverConfig()
if err == nil || !strings.Contains(err.Error(), "unknown unit") {
t.Fatalf("expected unknown unit error, got: %#v", err)
}
conf.Server.NodeGCThreshold = "10s"
if err := conf.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
out, err = a.serverConfig()
if threshold := out.NodeGCThreshold; threshold != time.Second*10 {
t.Fatalf("expect 10s, got: %s", threshold)
}
conf.Server.HeartbeatGrace = 37 * time.Second
out, err = a.serverConfig()
if threshold := out.HeartbeatGrace; threshold != time.Second*37 {
t.Fatalf("expect 37s, got: %s", threshold)
}
conf.Server.MinHeartbeatTTL = 37 * time.Second
out, err = a.serverConfig()
if min := out.MinHeartbeatTTL; min != time.Second*37 {
t.Fatalf("expect 37s, got: %s", min)
}
conf.Server.MaxHeartbeatsPerSecond = 11.0
out, err = a.serverConfig()
if max := out.MaxHeartbeatsPerSecond; max != 11.0 {
t.Fatalf("expect 11, got: %s", max)
}
// Defaults to the global bind addr
conf.Addresses.RPC = ""
conf.Addresses.Serf = ""
conf.Addresses.HTTP = ""
conf.AdvertiseAddrs.RPC = ""
conf.AdvertiseAddrs.HTTP = ""
conf.AdvertiseAddrs.Serf = ""
conf.Ports.HTTP = 4646
conf.Ports.RPC = 4647
conf.Ports.Serf = 4648
if err := conf.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
out, err = a.serverConfig()
if err != nil {
t.Fatalf("err: %s", err)
}
if addr := out.RPCAddr.IP.String(); addr != "127.0.0.3" {
t.Fatalf("expect 127.0.0.3, got: %s", addr)
}
if addr := out.SerfConfig.MemberlistConfig.BindAddr; addr != "127.0.0.3" {
t.Fatalf("expect 127.0.0.3, got: %s", addr)
}
if addr := conf.Addresses.HTTP; addr != "127.0.0.3" {
t.Fatalf("expect 127.0.0.3, got: %s", addr)
}
if addr := conf.Addresses.RPC; addr != "127.0.0.3" {
t.Fatalf("expect 127.0.0.3, got: %s", addr)
}
if addr := conf.Addresses.Serf; addr != "127.0.0.3" {
t.Fatalf("expect 127.0.0.3, got: %s", addr)
}
if addr := conf.normalizedAddrs.HTTP; addr != "127.0.0.3:4646" {
t.Fatalf("expect 127.0.0.3:4646, got: %s", addr)
}
if addr := conf.normalizedAddrs.RPC; addr != "127.0.0.3:4647" {
t.Fatalf("expect 127.0.0.3:4647, got: %s", addr)
}
if addr := conf.normalizedAddrs.Serf; addr != "127.0.0.3:4648" {
t.Fatalf("expect 127.0.0.3:4648, got: %s", addr)
}
// Properly handles the bootstrap flags
conf.Server.BootstrapExpect = 1
out, err = a.serverConfig()
if err != nil {
t.Fatalf("err: %s", err)
}
if !out.Bootstrap {
t.Fatalf("should have set bootstrap mode")
}
if out.BootstrapExpect != 0 {
t.Fatalf("boostrap expect should be 0")
}
conf.Server.BootstrapExpect = 3
out, err = a.serverConfig()
if err != nil {
t.Fatalf("err: %s", err)
}
if out.Bootstrap {
t.Fatalf("bootstrap mode should be disabled")
}
if out.BootstrapExpect != 3 {
t.Fatalf("should have bootstrap-expect = 3")
}
}
func TestAgent_ClientConfig(t *testing.T) {
conf := DefaultConfig()
conf.Client.Enabled = true
// For Clients HTTP and RPC must be set (Serf can be skipped)
conf.Addresses.HTTP = "169.254.0.1"
conf.Addresses.RPC = "169.254.0.1"
conf.Ports.HTTP = 5678
a := &Agent{config: conf}
if err := conf.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
c, err := a.clientConfig()
if err != nil {
t.Fatalf("got err: %v", err)
}
expectedHttpAddr := "169.254.0.1:5678"
if c.Node.HTTPAddr != expectedHttpAddr {
t.Fatalf("Expected http addr: %v, got: %v", expectedHttpAddr, c.Node.HTTPAddr)
}
conf = DefaultConfig()
conf.DevMode = true
a = &Agent{config: conf}
conf.Client.Enabled = true
conf.Addresses.HTTP = "169.254.0.1"
if err := conf.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
c, err = a.clientConfig()
if err != nil {
t.Fatalf("got err: %v", err)
}
expectedHttpAddr = "169.254.0.1:4646"
if c.Node.HTTPAddr != expectedHttpAddr {
t.Fatalf("Expected http addr: %v, got: %v", expectedHttpAddr, c.Node.HTTPAddr)
}
}
// TestAgent_HTTPCheck asserts Agent.agentHTTPCheck properly alters the HTTP
// API health check depending on configuration.
func TestAgent_HTTPCheck(t *testing.T) {
logger := log.New(ioutil.Discard, "", 0)
if testing.Verbose() {
logger = log.New(os.Stdout, "[TestAgent_HTTPCheck] ", log.Lshortfile)
}
agent := func() *Agent {
return &Agent{
logger: logger,
config: &Config{
AdvertiseAddrs: &AdvertiseAddrs{HTTP: "advertise:4646"},
normalizedAddrs: &Addresses{HTTP: "normalized:4646"},
Consul: &sconfig.ConsulConfig{
ChecksUseAdvertise: helper.BoolToPtr(false),
},
TLSConfig: &sconfig.TLSConfig{EnableHTTP: false},
},
}
}
t.Run("Plain HTTP Check", func(t *testing.T) {
a := agent()
check := a.agentHTTPCheck(false)
if check == nil {
t.Fatalf("expected non-nil check")
}
if check.Type != "http" {
t.Errorf("expected http check not: %q", check.Type)
}
if expected := "/v1/agent/servers"; check.Path != expected {
t.Errorf("expected %q path not: %q", expected, check.Path)
}
if check.Protocol != "http" {
t.Errorf("expected http proto not: %q", check.Protocol)
}
if expected := a.config.normalizedAddrs.HTTP; check.PortLabel != expected {
t.Errorf("expected normalized addr not %q", check.PortLabel)
}
})
t.Run("Plain HTTP + ChecksUseAdvertise", func(t *testing.T) {
a := agent()
a.config.Consul.ChecksUseAdvertise = helper.BoolToPtr(true)
check := a.agentHTTPCheck(false)
if check == nil {
t.Fatalf("expected non-nil check")
}
if expected := a.config.AdvertiseAddrs.HTTP; check.PortLabel != expected {
t.Errorf("expected advertise addr not %q", check.PortLabel)
}
})
t.Run("HTTPS + consulSupportsTLSSkipVerify", func(t *testing.T) {
a := agent()
a.consulSupportsTLSSkipVerify = true
a.config.TLSConfig.EnableHTTP = true
check := a.agentHTTPCheck(false)
if check == nil {
t.Fatalf("expected non-nil check")
}
if !check.TLSSkipVerify {
t.Errorf("expected tls skip verify")
}
if check.Protocol != "https" {
t.Errorf("expected https not: %q", check.Protocol)
}
})
t.Run("HTTPS w/o TLSSkipVerify", func(t *testing.T) {
a := agent()
a.consulSupportsTLSSkipVerify = false
a.config.TLSConfig.EnableHTTP = true
if check := a.agentHTTPCheck(false); check != nil {
t.Fatalf("expected nil check not: %#v", check)
}
})
t.Run("HTTPS + VerifyHTTPSClient", func(t *testing.T) {
a := agent()
a.consulSupportsTLSSkipVerify = true
a.config.TLSConfig.EnableHTTP = true
a.config.TLSConfig.VerifyHTTPSClient = true
if check := a.agentHTTPCheck(false); check != nil {
t.Fatalf("expected nil check not: %#v", check)
}
})
}
func TestAgent_ConsulSupportsTLSSkipVerify(t *testing.T) {
assertSupport := func(expected bool, blob string) {
self := map[string]map[string]interface{}{}
if err := json.Unmarshal([]byte("{"+blob+"}"), &self); err != nil {
t.Fatalf("invalid json: %v", err)
}
actual := consulSupportsTLSSkipVerify(self)
if actual != expected {
t.Errorf("expected %t but got %t for:\n%s\n", expected, actual, blob)
}
}
// 0.6.4
assertSupport(false, `"Member": {
"Addr": "127.0.0.1",
"DelegateCur": 4,
"DelegateMax": 4,
"DelegateMin": 2,
"Name": "rusty",
"Port": 8301,
"ProtocolCur": 2,
"ProtocolMax": 3,
"ProtocolMin": 1,
"Status": 1,
"Tags": {
"build": "0.6.4:26a0ef8c",
"dc": "dc1",
"port": "8300",
"role": "consul",
"vsn": "2",
"vsn_max": "3",
"vsn_min": "1"
}}`)
// 0.7.0
assertSupport(false, `"Member": {
"Addr": "127.0.0.1",
"DelegateCur": 4,
"DelegateMax": 4,
"DelegateMin": 2,
"Name": "rusty",
"Port": 8301,
"ProtocolCur": 2,
"ProtocolMax": 4,
"ProtocolMin": 1,
"Status": 1,
"Tags": {
"build": "0.7.0:'a189091",
"dc": "dc1",
"port": "8300",
"role": "consul",
"vsn": "2",
"vsn_max": "3",
"vsn_min": "2"
}}`)
// 0.7.2
assertSupport(true, `"Member": {
"Addr": "127.0.0.1",
"DelegateCur": 4,
"DelegateMax": 4,
"DelegateMin": 2,
"Name": "rusty",
"Port": 8301,
"ProtocolCur": 2,
"ProtocolMax": 5,
"ProtocolMin": 1,
"Status": 1,
"Tags": {
"build": "0.7.2:'a9afa0c",
"dc": "dc1",
"port": "8300",
"role": "consul",
"vsn": "2",
"vsn_max": "3",
"vsn_min": "2"
}}`)
// 0.8.1
assertSupport(true, `"Member": {
"Addr": "127.0.0.1",
"DelegateCur": 4,
"DelegateMax": 5,
"DelegateMin": 2,
"Name": "rusty",
"Port": 8301,
"ProtocolCur": 2,
"ProtocolMax": 5,
"ProtocolMin": 1,
"Status": 1,
"Tags": {
"build": "0.8.1:'e9ca44d",
"dc": "dc1",
"id": "3ddc1b59-460e-a100-1d5c-ce3972122664",
"port": "8300",
"raft_vsn": "2",
"role": "consul",
"vsn": "2",
"vsn_max": "3",
"vsn_min": "2",
"wan_join_port": "8302"
}}`)
}
// TestAgent_HTTPCheckPath asserts clients and servers use different endpoints
// for healthchecks.
func TestAgent_HTTPCheckPath(t *testing.T) {
// Agent.agentHTTPCheck only needs a config and logger
a := &Agent{
config: DevConfig(),
logger: log.New(ioutil.Discard, "", 0),
}
if err := a.config.normalizeAddrs(); err != nil {
t.Fatalf("error normalizing config: %v", err)
}
if testing.Verbose() {
a.logger = log.New(os.Stderr, "", log.LstdFlags)
}
// Assert server check uses /v1/status/peers
isServer := true
check := a.agentHTTPCheck(isServer)
if expected := "Nomad Server HTTP Check"; check.Name != expected {
t.Errorf("expected server check name to be %q but found %q", expected, check.Name)
}
if expected := "/v1/status/peers"; check.Path != expected {
t.Errorf("expected server check path to be %q but found %q", expected, check.Path)
}
// Assert client check uses /v1/agent/servers
isServer = false
check = a.agentHTTPCheck(isServer)
if expected := "Nomad Client HTTP Check"; check.Name != expected {
t.Errorf("expected client check name to be %q but found %q", expected, check.Name)
}
if expected := "/v1/agent/servers"; check.Path != expected {
t.Errorf("expected client check path to be %q but found %q", expected, check.Path)
}
}
Reference in a new issue View git blame Copy permalink