func InitServiceEnv(config *Configuration) *ServiceEnv {
	env := InitPachOnlyEnv(config)
	env.etcdAddress = fmt.Sprintf("http://%s", net.JoinHostPort(env.EtcdHost, env.EtcdPort))
	env.etcdEg.Go(env.initEtcdClient)
	return env // env is not ready yet
}
func InitServiceEnv(config *Configuration) *ServiceEnv {
	env := InitPachOnlyEnv(config)
	env.etcdAddress = fmt.Sprintf("http://%s", net.JoinHostPort(env.EtcdHost, env.EtcdPort))
	env.etcdEg.Go(env.initEtcdClient)
	return env // env is not ready yet
}
// InitServiceEnv initializes this service environment. This dials a GRPC
// connection to pachd and etcd (in a background goroutine), and creates the
// template pachClient used by future calls to GetPachClient.
//
// This call returns immediately, but GetPachClient and GetEtcdClient block
// until their respective clients are ready.