func main() {
var configPath string
flag.StringVar(&configPath, "config", "", "Path to redis config")
flag.Parse()
if configPath == "" {
log.Fatal("Missing flag --config")
}
if _, err := os.Stat(configPath); os.IsNotExist(err) {
log.Fatal("Redis config does not exist")
}
conf, err := redisconf.Load(configPath)
if err != nil {
log.Fatal("Invalid redis config")
}
_, err = client.Connect(client.Host(conf.Host()), client.Port(conf.Port()))
if err != nil {
log.Fatal("Can not connect to Redis")
}
m := metrics.Metrics{
metrics.Metric{
Name: "foo",
Value: 1,
Unit: "bar",
},
}
encoder := json.NewEncoder(os.Stdout)
encoder.Encode(m)
}
func (resetter *Resetter) ResetRedis() error {
if err := resetter.stopRedis(); err != nil {
return err
}
if err := resetter.deleteData(); err != nil {
return err
}
if err := resetter.resetConfigWithNewPassword(); err != nil {
return err
}
if err := resetter.startRedis(); err != nil {
return err
}
conf, err := redisconf.Load(resetter.liveConfPath)
if err != nil {
return err
}
address, err := net.ResolveTCPAddr("tcp", "127.0.0.1:"+conf.Get("port"))
if err != nil {
return err
}
return resetter.portChecker.Check(address, resetter.timeout)
}
func credentialsHandler(configPath string) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
conf, err := redisconf.Load(configPath)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
port, err := strconv.Atoi(conf.Get("port"))
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
password := conf.Get("requirepass")
credentials := struct {
Port int `json:"port"`
Password string `json:"password"`
}{
Port: port,
Password: password,
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
encoder := json.NewEncoder(w)
encoder.Encode(credentials)
}
}
func startRedis(confPath string) (*gexec.Session, redis.Conn) {
redisSession, err := gexec.Start(exec.Command("redis-server", confPath), GinkgoWriter, GinkgoWriter)
Ω(err).ShouldNot(HaveOccurred())
conf, err := redisconf.Load(confPath)
Ω(err).ShouldNot(HaveOccurred())
port, err := strconv.Atoi(conf.Get("port"))
Ω(err).ShouldNot(HaveOccurred())
Expect(helpers.ServiceAvailable(uint(port))).To(BeTrue())
return redisSession, helpers.BuildRedisClient(uint(port), "localhost", conf.Get("requirepass"))
}
func templateRedisConf(config *agentconfig.Config, logger lager.Logger) {
newConfig, err := redisconf.Load(config.DefaultConfPath)
if err != nil {
logger.Fatal("Error loading default redis.conf", err, lager.Data{
"path": config.DefaultConfPath,
})
}
if fileExists(config.ConfPath) {
existingConf, err := redisconf.Load(config.ConfPath)
if err != nil {
logger.Fatal("Error loading existing redis.conf", err, lager.Data{
"path": config.ConfPath,
})
}
err = newConfig.InitForDedicatedNode(existingConf.Password())
} else {
err = newConfig.InitForDedicatedNode()
}
if err != nil {
logger.Fatal("Error initializing redis conf for dedicated node", err)
}
err = newConfig.Save(config.ConfPath)
if err != nil {
logger.Fatal("Error saving redis.conf", err, lager.Data{
"path": config.ConfPath,
})
}
logger.Info("Finished writing redis.conf", lager.Data{
"path": config.ConfPath,
"conf": newConfig,
})
}
func (resetter *Resetter) resetConfigWithNewPassword() error {
conf, err := redisconf.Load(resetter.defaultConfPath)
if err != nil {
return err
}
err = conf.InitForDedicatedNode()
if err != nil {
return err
}
if err := conf.Save(resetter.liveConfPath); err != nil {
return err
}
return nil
}
func (repo *LocalRepository) FindByID(instanceID string) (*Instance, error) {
conf, err := redisconf.Load(repo.InstanceConfigPath(instanceID))
if err != nil {
return nil, err
}
port, err := strconv.Atoi(conf.Get("port"))
if err != nil {
return nil, err
}
instance := &Instance{
ID: instanceID,
Password: conf.Get("requirepass"),
Port: port,
Host: repo.RedisConf.Host,
}
return instance, nil
}
func checkRedisStopAndStart(c chan<- bool) {
defer GinkgoRecover()
Eventually(redisSession, "3s").Should(gexec.Exit())
// Sleep here to emulate the time it takes monit to do it's thing
time.Sleep(time.Millisecond * 200)
var err error
redisSession, err = gexec.Start(exec.Command("redis-server", redisConfPath), GinkgoWriter, GinkgoWriter)
Ω(err).ShouldNot(HaveOccurred())
conf, err := redisconf.Load(redisConfPath)
Ω(err).ShouldNot(HaveOccurred())
port, err := strconv.Atoi(conf.Get("port"))
Ω(err).ShouldNot(HaveOccurred())
Expect(helpers.ServiceAvailable(uint(port))).To(BeTrue())
c <- true
}
func (f *configFinder) Find() ([]RedisConfig, error) {
paths, err := f.findFiles()
if err != nil {
return nil, err
}
redisConfigs := make([]RedisConfig, len(paths))
for i, path := range paths {
config, err := redisconf.Load(path)
if err != nil {
return nil, err
}
redisConfigs[i] = RedisConfig{
Conf: config,
Path: path,
}
}
return redisConfigs, err
}
func main() {
var configPath string
flag.StringVar(&configPath, "config", "", "Path to redis config file")
flag.Parse()
if configPath == "" {
log.Fatal("Missing flag --config")
}
config, err := redisconf.Load(configPath)
if err != nil {
log.Fatalf("Error loading Redis config file: %s", err)
}
port := config.Port()
host := config.Host()
password := config.Password()
clientConnection, err := client.Connect(
client.Port(port),
client.Host(host),
client.Password(password),
)
if err != nil {
log.Fatalf("Error connecting to Redis: %s", err)
}
m, err := metrics.CPULoad(clientConnection)
if err != nil {
log.Fatalf("Error getting metrics: %s", err)
}
if err := json.NewEncoder(os.Stdout).Encode(m); err != nil {
log.Fatalf("Error encoding json: %s", err)
}
}
func redisPIDProvider(instancePath string) process.PIDProvider {
return func() (int, error) {
instanceConf, err := redisconf.Load(path.Join(instancePath, "redis.conf"))
if err != nil {
return 0, err
}
client, err := client.Connect(
client.Host("localhost"),
client.Port(instanceConf.Port()),
client.Password(instanceConf.Password()),
client.CmdAliases(instanceConf.CommandAliases()),
)
if err != nil {
return 0, err
}
pidfile, err := client.GetConfig("pidfile")
if err != nil {
return 0, err
}
return process.ReadPID(pidfile)
}
}
func moveDataFor(propertyName, fileName, redisConfFilePath string) error {
var fileContents []byte
var redisConf redisconf.Conf
var err error
if redisConf, err = redisconf.Load(redisConfFilePath); err != nil {
return err
}
if redisConf.Get(propertyName) != "" {
os.Remove(fileName)
return nil
}
if fileContents, err = ioutil.ReadFile(fileName); err != nil {
return err
}
redisConf.Set(propertyName, string(fileContents))
if err = redisConf.Save(redisConfFilePath); err != nil {
return err
}
os.Remove(fileName)
return nil
}
AfterEach(func() {
stopAgent(agentSession)
})
Context("when there is no redis.conf", func() {
BeforeEach(func() {
os.Remove(redisConfPath)
agentSession = startAgent()
})
loadRedisConfFileWhenItExists := func() redisconf.Conf {
Eventually(func() bool {
return helpers.FileExists(redisConfPath)
}).Should(BeTrue())
conf, err := redisconf.Load(redisConfPath)
Expect(err).ToNot(HaveOccurred())
return conf
}
It("copies a redis.conf from the default path and adds a password", func() {
conf := loadRedisConfFileWhenItExists()
Expect(conf.Get("daemonize")).To(Equal("no"))
Expect(conf.HasKey("requirepass")).To(BeTrue())
})
It("creates a new password each time", func() {
initialConf := loadRedisConfFileWhenItExists()
helpers.KillProcess(agentSession)
var agentSession *gexec.Session
var _ = Describe("DELETE /", func() {
var (
redisConn redis.Conn
aofPath string
originalRedisConf redisconf.Conf
)
BeforeEach(func() {
agentSession = startAgent()
redisSession, aofPath = startRedisAndBlockUntilUp()
var err error
originalRedisConf, err = redisconf.Load(redisConfPath)
Ω(err).ShouldNot(HaveOccurred())
redisRestarted := make(chan bool)
httpRequestReturned := make(chan bool)
go checkRedisStopAndStart(redisRestarted)
go doResetRequest(httpRequestReturned)
select {
case <-redisRestarted:
<-httpRequestReturned
case <-time.After(time.Second * 10):
Fail("Test timed out after 10 seconds")
}
configMigrator.Migrate()
_, err := os.Stat(redisPortFilePath)
Expect(os.IsNotExist(err)).To(BeTrue())
_, err = os.Stat(redisPasswordFilePath)
Expect(os.IsNotExist(err)).To(BeTrue())
})
It("copies the port and password to redis.conf", func() {
ioutil.WriteFile(redisConfFile, []byte("#port 63490"), 0777)
ioutil.WriteFile(redisPortFilePath, []byte("3455"), 0777)
ioutil.WriteFile(redisPasswordFilePath, []byte("secret-password"), 0777)
configMigrator.Migrate()
redisConfigValues, err := redisconf.Load(redisConfFile)
Expect(err).ToNot(HaveOccurred())
Expect(redisConfigValues.Get("port")).To(Equal("3455"))
Expect(redisConfigValues.Get("requirepass")).To(Equal("secret-password"))
})
It("does not change the other values", func() {
ioutil.WriteFile(redisConfFile, []byte("foo bar"), 0777)
configMigrator.Migrate()
redisConfigValues, err := redisconf.Load(redisConfFile)
Expect(err).ToNot(HaveOccurred())
Expect(redisConfigValues.Get("foo")).To(Equal("bar"))
})
os.Mkdir(redisInstanceDir, 0755)
copyOverFromAssets("redis-server.port", redisInstanceDir)
copyOverFromAssets("redis-server.password", redisInstanceDir)
copyOverFromAssets("redis.conf", redisInstanceDir)
executablePath := buildExecutable("github.com/pivotal-cf/cf-redis-broker/cmd/configmigrator")
session := launchProcessWithBrokerConfig(executablePath, "broker.yml")
session.Wait(10 * time.Second)
Expect(session.ExitCode()).To(Equal(0))
_, err := os.Stat(path.Join(redisInstanceDir, "redis-server.port"))
Expect(os.IsNotExist(err)).To(BeTrue())
_, err = os.Stat(path.Join(redisInstanceDir, "redis-server.password"))
Expect(os.IsNotExist(err)).To(BeTrue())
redisConfValues, _ := redisconf.Load(path.Join(redisInstanceDir, "redis.conf"))
Expect(redisConfValues.Get("port")).To(Equal("1234"))
Expect(redisConfValues.Get("requirepass")).To(Equal("secret-password"))
})
})
})
func copyOverFromAssets(fileName, dir string) {
assetPath := helpers.AssetPath(fileName)
data, _ := ioutil.ReadFile(assetPath)
ioutil.WriteFile(path.Join(dir, fileName), data, 0644)
}
func buildExecutable(sourcePath string) string {
executable, err := gexec.Build(sourcePath)
if err != nil {
"strconv"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/pivotal-cf/cf-redis-broker/redisconf"
)
var _ = Describe("redisconf", func() {
Describe("InitForDedicatedNode", func() {
var conf redisconf.Conf
BeforeEach(func() {
path, err := filepath.Abs(path.Join("assets", "redis.conf"))
Expect(err).ToNot(HaveOccurred())
conf, err = redisconf.Load(path)
Expect(err).ToNot(HaveOccurred())
Expect(conf.Get("maxmemory")).To(BeEmpty())
Expect(conf.Password()).To(BeEmpty())
})
It("sets the max memory parameter", func() {
err := conf.InitForDedicatedNode()
Expect(err).ToNot(HaveOccurred())
maxmemory := conf.Get("maxmemory")
Expect(maxmemory).ToNot(BeEmpty())
_, err = strconv.Atoi(maxmemory)
Expect(err).ToNot(HaveOccurred())
})
