// createStoreClient is used to create a storage client based
// on our configuration. Either an etcd or Consul client.
func createStoreClient(backend string) (template.StoreClient, error) {
log.Notice("Backend set to " + backend)
switch backend {
case "consul":
log.Notice("Consul address set to " + config.ConsulAddr())
return consul.NewConsulClient(config.ConsulAddr())
case "etcd":
// Create the etcd client upfront and use it for the life of the process.
// The etcdClient is an http.Client and designed to be reused.
log.Notice("etcd nodes set to " + strings.Join(config.EtcdNodes(), ", "))
return etcdutil.NewEtcdClient(config.EtcdNodes(), config.ClientCert(), config.ClientKey(), config.ClientCaKeys())
case "env":
return env.NewEnvClient()
}
return nil, errors.New("Invalid backend")
}
func main() {
// Most flags are defined in the confd/config package which allows us to
// override configuration settings from the command line. Parse the flags now
// to make them active.
flag.Parse()
if configFile == "" {
if IsFileExist(defaultConfigFile) {
configFile = defaultConfigFile
}
}
// Initialize the global configuration.
log.Debug("Loading confd configuration")
if err := config.LoadConfig(configFile); err != nil {
log.Fatal(err.Error())
}
// Configure logging. While you can enable debug and verbose logging, however
// if quiet is set to true then debug and verbose messages will not be printed.
log.SetQuiet(config.Quiet())
log.SetVerbose(config.Verbose())
log.SetDebug(config.Debug())
log.Notice("Starting confd")
// Create the etcd client upfront and use it for the life of the process.
// The etcdClient is an http.Client and designed to be reused.
log.Notice("etcd nodes set to " + strings.Join(config.EtcdNodes(), ", "))
etcdClient, err := etcdutil.NewEtcdClient(config.EtcdNodes(), config.ClientCert(), config.ClientKey(), config.ClientCaKeys())
if err != nil {
log.Fatal(err.Error())
}
for {
runErrors := template.ProcessTemplateResources(etcdClient)
// If the -onetime flag is passed on the command line we immediately exit
// after processing the template config files.
if onetime {
if len(runErrors) > 0 {
os.Exit(1)
}
os.Exit(0)
}
time.Sleep(time.Duration(config.Interval()) * time.Second)
}
}
// createStoreClient is used to create a storage client based
// on our configuration. Either an etcd or Consul client.
func createStoreClient() (template.StoreClient, error) {
if config.Consul() {
log.Notice("Consul address set to " + config.ConsulAddr())
return consul.NewConsulClient(config.ConsulAddr())
} else {
// Create the etcd client upfront and use it for the life of the process.
// The etcdClient is an http.Client and designed to be reused.
log.Notice("etcd nodes set to " + strings.Join(config.EtcdNodes(), ", "))
return etcdutil.NewEtcdClient(config.EtcdNodes(), config.ClientCert(), config.ClientKey(), config.ClientCaKeys())
}
}