func startRedisSession(config restoreconfig.Config, instanceID, planName string) (redisSession *gexec.Session) {
var testInstanceDir string
testDataDir := config.InstanceDataDir(instanceID)
if planName == dedicatedPlan {
testInstanceDir = testDataDir
os.RemoveAll(testDataDir)
} else {
testInstanceDir = filepath.Join(config.RedisDataDirectory, instanceID)
os.RemoveAll(testInstanceDir)
}
os.MkdirAll(testDataDir, 0777)
err := ioutil.WriteFile(
filepath.Join(testInstanceDir, "redis.conf"),
[]byte("port 6379"),
os.ModePerm,
)
Expect(err).ToNot(HaveOccurred())
pidfilePath := config.InstancePidFilePath(instanceID)
err = os.MkdirAll(config.PidfileDirectory, 0777)
Expect(err).NotTo(HaveOccurred())
redisCmd := exec.Command("redis-server",
"--dir", testInstanceDir,
"--save", "900", "1",
"--pidfile", pidfilePath,
"--daemonize", "yes",
)
redisSession, err = gexec.Start(redisCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
pidFileWritten := make(chan bool)
go func(c chan<- bool) {
for {
if _, err := os.Stat(pidfilePath); !os.IsNotExist(err) {
c <- true
break
}
time.Sleep(50 * time.Millisecond)
}
}(pidFileWritten)
// wait for redis to write pid file
select {
case <-pidFileWritten:
break
case <-time.After(30 * time.Second):
Fail("Test timed out waiting for redis to write PID file.")
}
return redisSession
}
AfterEach(func() {
if pidfilePath == "" {
err := os.Remove(pidfilePath)
Expect(err).NotTo(HaveOccurred())
}
})
It("Returns instance PID", func() {
Expect(restoreConfig.InstancePid("instance-id")).To(Equal(1234))
})
})
Describe("#InstancePidFilePath", func() {
It("Returns the instance PID file path", func() {
expected := "/tmp/pidfiles/instance-id.pid"
Expect(restoreConfig.InstancePidFilePath("instance-id")).To(Equal(expected))
})
})
Describe("#InstanceDataDir", func() {
It("Returns the instance data directory", func() {
Expect(restoreConfig.InstanceDataDir("instance-id")).To(Equal("/tmp/redis/data/instance-id/db"))
})
})
})
Context("Dedicated vm", func() {
BeforeEach(func() {
var err error
restoreConfig, err = restoreconfig.Load(path.Join("assets", "restore-dedicated.yml"))
Expect(err).ToNot(HaveOccurred())