func ensureRunning(instance *redis.Instance, repo *redis.LocalRepository, processController *redis.OSProcessController, logger lager.Logger) {
configPath := repo.InstanceConfigPath(instance.ID)
instanceDataDir := repo.InstanceDataDir(instance.ID)
pidfilePath := repo.InstancePidFilePath(instance.ID)
logfilePath := repo.InstanceLogFilePath(instance.ID)
err := processController.EnsureRunning(instance, configPath, instanceDataDir, pidfilePath, logfilePath)
if err != nil {
logger.Fatal("Error starting instance", err, lager.Data{
"instance": instance.ID,
})
}
}
})
It("overwrites the config file", func() {
originalConfigContents := []byte("my custom config")
err := ioutil.WriteFile(repo.InstanceConfigPath(instance.ID), originalConfigContents, 0755)
Ω(err).NotTo(HaveOccurred())
writeInstance(instance, repo)
configContents, err := ioutil.ReadFile(repo.InstanceConfigPath(instance.ID))
Ω(err).NotTo(HaveOccurred())
Ω(configContents).ShouldNot(Equal(originalConfigContents))
})
It("does not clear the data directory", func() {
dataFilePath := filepath.Join(repo.InstanceDataDir(instance.ID), "appendonly.aof")
originalDataFileContents := []byte("DATA FILE")
err := ioutil.WriteFile(dataFilePath, originalDataFileContents, 0755)
Ω(err).NotTo(HaveOccurred())
writeInstance(instance, repo)
dataFileContents, err := ioutil.ReadFile(dataFilePath)
Ω(err).NotTo(HaveOccurred())
Ω(dataFileContents).Should(Equal(originalDataFileContents))
})
It("does not clear the log directory", func() {
logFilePath := filepath.Join(repo.InstanceLogDir(instance.ID), "redis-server.log")
