open-consul/command/agent/command_test.go

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package agent
import (
"bytes"
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"fmt"
"io/ioutil"
"log"
"os"
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"path/filepath"
"strings"
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"testing"
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"github.com/hashicorp/consul/logger"
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"github.com/hashicorp/consul/testutil"
"github.com/mitchellh/cli"
"reflect"
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)
func TestCommand_implements(t *testing.T) {
var _ cli.Command = new(Command)
}
func TestValidDatacenter(t *testing.T) {
shouldMatch := []string{
"dc1",
"east-aws-001",
"PROD_aws01-small",
}
noMatch := []string{
"east.aws",
"east!aws",
"first,second",
}
for _, m := range shouldMatch {
if !validDatacenter.MatchString(m) {
t.Fatalf("expected match: %s", m)
}
}
for _, m := range noMatch {
if validDatacenter.MatchString(m) {
t.Fatalf("expected no match: %s", m)
}
}
}
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func TestRetryJoin(t *testing.T) {
dir, agent := makeAgent(t, nextConfig())
defer os.RemoveAll(dir)
defer agent.Shutdown()
conf2 := nextConfig()
tmpDir, err := ioutil.TempDir("", "consul")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.RemoveAll(tmpDir)
doneCh := make(chan struct{})
shutdownCh := make(chan struct{})
defer func() {
close(shutdownCh)
<-doneCh
}()
cmd := &Command{
ShutdownCh: shutdownCh,
Ui: new(cli.MockUi),
}
serfAddr := fmt.Sprintf(
"%s:%d",
agent.config.BindAddr,
agent.config.Ports.SerfLan)
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serfWanAddr := fmt.Sprintf(
"%s:%d",
agent.config.BindAddr,
agent.config.Ports.SerfWan)
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args := []string{
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"-server",
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"-data-dir", tmpDir,
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"-node", fmt.Sprintf(`"%s"`, conf2.NodeName),
"-advertise", agent.config.BindAddr,
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"-retry-join", serfAddr,
"-retry-interval", "1s",
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"-retry-join-wan", serfWanAddr,
"-retry-interval-wan", "1s",
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}
go func() {
if code := cmd.Run(args); code != 0 {
log.Printf("bad: %d", code)
}
close(doneCh)
}()
testutil.WaitForResult(func() (bool, error) {
mem := agent.LANMembers()
if len(mem) != 2 {
return false, fmt.Errorf("bad: %#v", mem)
}
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mem = agent.WANMembers()
if len(mem) != 2 {
return false, fmt.Errorf("bad (wan): %#v", mem)
}
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return true, nil
}, func(err error) {
t.Fatalf(err.Error())
})
}
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func TestReadCliConfig(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "consul")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.RemoveAll(tmpDir)
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shutdownCh := make(chan struct{})
defer close(shutdownCh)
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// Test config parse
{
cmd := &Command{
args: []string{
"-data-dir", tmpDir,
"-node", `"a"`,
"-advertise-wan", "1.2.3.4",
"-serf-wan-bind", "4.3.2.1",
"-serf-lan-bind", "4.3.2.2",
"-node-meta", "somekey:somevalue",
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},
ShutdownCh: shutdownCh,
Ui: new(cli.MockUi),
}
config := cmd.readConfig()
if config.AdvertiseAddrWan != "1.2.3.4" {
t.Fatalf("expected -advertise-addr-wan 1.2.3.4 got %s", config.AdvertiseAddrWan)
}
if config.SerfWanBindAddr != "4.3.2.1" {
t.Fatalf("expected -serf-wan-bind 4.3.2.1 got %s", config.SerfWanBindAddr)
}
if config.SerfLanBindAddr != "4.3.2.2" {
t.Fatalf("expected -serf-lan-bind 4.3.2.2 got %s", config.SerfLanBindAddr)
}
if len(config.Meta) != 1 || config.Meta["somekey"] != "somevalue" {
t.Fatalf("expected somekey=somevalue, got %v", config.Meta)
}
}
// Test multiple node meta flags
{
cmd := &Command{
args: []string{
"-data-dir", tmpDir,
"-node-meta", "somekey:somevalue",
"-node-meta", "otherkey:othervalue",
},
ShutdownCh: shutdownCh,
Ui: new(cli.MockUi),
}
expected := map[string]string{
"somekey": "somevalue",
"otherkey": "othervalue",
}
config := cmd.readConfig()
if !reflect.DeepEqual(config.Meta, expected) {
t.Fatalf("bad: %v %v", config.Meta, expected)
}
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}
// Test LeaveOnTerm and SkipLeaveOnInt defaults for server mode
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{
ui := new(cli.MockUi)
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cmd := &Command{
args: []string{
"-node", `"server1"`,
"-server",
"-data-dir", tmpDir,
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},
ShutdownCh: shutdownCh,
Ui: ui,
}
config := cmd.readConfig()
if config == nil {
t.Fatalf(`Expected non-nil config object: %s`, ui.ErrorWriter.String())
}
if config.Server != true {
t.Errorf(`Expected -server to be true`)
}
if (*config.LeaveOnTerm) != false {
t.Errorf(`Expected LeaveOnTerm to be false in server mode`)
}
if (*config.SkipLeaveOnInt) != true {
t.Errorf(`Expected SkipLeaveOnInt to be true in server mode`)
}
}
// Test LeaveOnTerm and SkipLeaveOnInt defaults for client mode
{
ui := new(cli.MockUi)
cmd := &Command{
args: []string{
"-data-dir", tmpDir,
"-node", `"client"`,
},
ShutdownCh: shutdownCh,
Ui: ui,
}
config := cmd.readConfig()
if config == nil {
t.Fatalf(`Expected non-nil config object: %s`, ui.ErrorWriter.String())
}
if config.Server != false {
t.Errorf(`Expected server to be false`)
}
if (*config.LeaveOnTerm) != true {
t.Errorf(`Expected LeaveOnTerm to be true in client mode`)
}
if *config.SkipLeaveOnInt != false {
t.Errorf(`Expected SkipLeaveOnInt to be false in client mode`)
}
}
// Test empty node name
{
cmd := &Command{
args: []string{"-node", `""`},
ShutdownCh: shutdownCh,
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Ui: new(cli.MockUi),
}
config := cmd.readConfig()
if config != nil {
t.Errorf(`Expected -node="" to fail`)
}
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}
}
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func TestRetryJoinFail(t *testing.T) {
conf := nextConfig()
tmpDir, err := ioutil.TempDir("", "consul")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.RemoveAll(tmpDir)
shutdownCh := make(chan struct{})
defer close(shutdownCh)
cmd := &Command{
ShutdownCh: shutdownCh,
Ui: new(cli.MockUi),
}
serfAddr := fmt.Sprintf("%s:%d", conf.BindAddr, conf.Ports.SerfLan)
args := []string{
"-data-dir", tmpDir,
"-retry-join", serfAddr,
"-retry-max", "1",
}
if code := cmd.Run(args); code == 0 {
t.Fatalf("bad: %d", code)
}
}
func TestRetryJoinWanFail(t *testing.T) {
conf := nextConfig()
tmpDir, err := ioutil.TempDir("", "consul")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.RemoveAll(tmpDir)
shutdownCh := make(chan struct{})
defer close(shutdownCh)
cmd := &Command{
ShutdownCh: shutdownCh,
Ui: new(cli.MockUi),
}
serfAddr := fmt.Sprintf("%s:%d", conf.BindAddr, conf.Ports.SerfWan)
args := []string{
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"-server",
"-data-dir", tmpDir,
"-retry-join-wan", serfAddr,
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"-retry-max-wan", "1",
}
if code := cmd.Run(args); code == 0 {
t.Fatalf("bad: %d", code)
}
}
func TestDiscoverEC2Hosts(t *testing.T) {
if os.Getenv("AWS_REGION") == "" {
t.Skip("AWS_REGION not set, skipping")
}
if os.Getenv("AWS_ACCESS_KEY_ID") == "" {
t.Skip("AWS_ACCESS_KEY_ID not set, skipping")
}
if os.Getenv("AWS_SECRET_ACCESS_KEY") == "" {
t.Skip("AWS_SECRET_ACCESS_KEY not set, skipping")
}
c := &Config{
RetryJoinEC2: RetryJoinEC2{
Region: os.Getenv("AWS_REGION"),
TagKey: "ConsulRole",
TagValue: "Server",
},
}
servers, err := c.discoverEc2Hosts(&log.Logger{})
if err != nil {
t.Fatal(err)
}
if len(servers) != 3 {
t.Fatalf("bad: %v", servers)
}
}
func TestDiscoverGCEHosts(t *testing.T) {
if os.Getenv("GCE_PROJECT") == "" {
t.Skip("GCE_PROJECT not set, skipping")
}
if os.Getenv("GOOGLE_APPLICATION_CREDENTIALS") == "" && os.Getenv("GCE_CONFIG_CREDENTIALS") == "" {
t.Skip("GOOGLE_APPLICATION_CREDENTIALS or GCE_CONFIG_CREDENTIALS not set, skipping")
}
c := &Config{
RetryJoinGCE: RetryJoinGCE{
ProjectName: os.Getenv("GCE_PROJECT"),
ZonePattern: os.Getenv("GCE_ZONE"),
TagValue: "consulrole-server",
CredentialsFile: os.Getenv("GCE_CONFIG_CREDENTIALS"),
},
}
servers, err := c.discoverGCEHosts(log.New(os.Stderr, "", log.LstdFlags))
if err != nil {
t.Fatal(err)
}
if len(servers) != 3 {
t.Fatalf("bad: %v", servers)
}
}
func TestSetupAgent_RPCUnixSocket_FileExists(t *testing.T) {
conf := nextConfig()
tmpDir, err := ioutil.TempDir("", "consul")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.RemoveAll(tmpDir)
tmpFile, err := ioutil.TempFile("", "consul")
if err != nil {
t.Fatalf("err: %s", err)
}
defer os.Remove(tmpFile.Name())
socketPath := tmpFile.Name()
conf.DataDir = tmpDir
conf.Server = true
conf.Bootstrap = true
// Set socket address to an existing file.
conf.Addresses.RPC = "unix://" + socketPath
// Custom mode for socket file
conf.UnixSockets.Perms = "0777"
shutdownCh := make(chan struct{})
defer close(shutdownCh)
cmd := &Command{
ShutdownCh: shutdownCh,
Ui: new(cli.MockUi),
}
logWriter := logger.NewLogWriter(512)
logOutput := new(bytes.Buffer)
// Ensure the server is created
if err := cmd.setupAgent(conf, logOutput, logWriter); err != nil {
t.Fatalf("err: %s", err)
}
// Ensure the file was replaced by the socket
fi, err := os.Stat(socketPath)
if err != nil {
t.Fatalf("err: %s", err)
}
if fi.Mode()&os.ModeSocket == 0 {
t.Fatalf("expected socket to replace file")
}
// Ensure permissions were applied to the socket file
if fi.Mode().String() != "Srwxrwxrwx" {
t.Fatalf("bad permissions: %s", fi.Mode())
}
}
func TestSetupScadaConn(t *testing.T) {
// Create a config and assign an infra name
conf1 := nextConfig()
conf1.AtlasInfrastructure = "hashicorp/test1"
conf1.AtlasToken = "abc"
dir, agent := makeAgent(t, conf1)
defer os.RemoveAll(dir)
defer agent.Shutdown()
cmd := &Command{
ShutdownCh: make(chan struct{}),
Ui: new(cli.MockUi),
agent: agent,
}
// First start creates the scada conn
if err := cmd.setupScadaConn(conf1); err != nil {
t.Fatalf("err: %s", err)
}
http1 := cmd.scadaHttp
provider1 := cmd.scadaProvider
// Performing setup again tears down original and replaces
// with a new SCADA client.
conf2 := nextConfig()
conf2.AtlasInfrastructure = "hashicorp/test2"
conf2.AtlasToken = "123"
if err := cmd.setupScadaConn(conf2); err != nil {
t.Fatalf("err: %s", err)
}
if cmd.scadaHttp == http1 || cmd.scadaProvider == provider1 {
t.Fatalf("should change: %#v %#v", cmd.scadaHttp, cmd.scadaProvider)
}
// Original provider and listener must be closed
if !provider1.IsShutdown() {
t.Fatalf("should be shutdown")
}
if _, err := http1.listener.Accept(); !strings.Contains(err.Error(), "closed") {
t.Fatalf("should be closed")
}
}
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func TestProtectDataDir(t *testing.T) {
dir, err := ioutil.TempDir("", "consul")
if err != nil {
t.Fatalf("err: %v", err)
}
defer os.RemoveAll(dir)
if err := os.MkdirAll(filepath.Join(dir, "mdb"), 0700); err != nil {
t.Fatalf("err: %v", err)
}
cfgFile, err := ioutil.TempFile("", "consul")
if err != nil {
t.Fatalf("err: %v", err)
}
defer os.Remove(cfgFile.Name())
content := fmt.Sprintf(`{"server": true, "data_dir": "%s"}`, dir)
_, err = cfgFile.Write([]byte(content))
if err != nil {
t.Fatalf("err: %v", err)
}
ui := new(cli.MockUi)
cmd := &Command{
Ui: ui,
args: []string{"-config-file=" + cfgFile.Name()},
}
if conf := cmd.readConfig(); conf != nil {
t.Fatalf("should fail")
}
if out := ui.ErrorWriter.String(); !strings.Contains(out, dir) {
t.Fatalf("expected mdb dir error, got: %s", out)
}
}
func TestBadDataDirPermissions(t *testing.T) {
dir, err := ioutil.TempDir("", "consul")
if err != nil {
t.Fatalf("err: %v", err)
}
defer os.RemoveAll(dir)
dataDir := filepath.Join(dir, "mdb")
if err := os.MkdirAll(dataDir, 0400); err != nil {
t.Fatalf("err: %v", err)
}
defer os.RemoveAll(dataDir)
ui := new(cli.MockUi)
cmd := &Command{
Ui: ui,
args: []string{"-data-dir=" + dataDir, "-server=true"},
}
if conf := cmd.readConfig(); conf != nil {
t.Fatalf("Should fail with bad data directory permissions")
}
if out := ui.ErrorWriter.String(); !strings.Contains(out, "Permission denied") {
t.Fatalf("expected permission denied error, got: %s", out)
}
}