main.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package main

import (
	"flag"
	"os"

	rocketmqv1alpha1 "github.com/apache/rocketmq-operator/pkg/apis/rocketmq/v1alpha1"
	"github.com/apache/rocketmq-operator/pkg/controller/broker"
	"github.com/apache/rocketmq-operator/pkg/controller/console"
	rmqcontroller "github.com/apache/rocketmq-operator/pkg/controller/controller"
	"github.com/apache/rocketmq-operator/pkg/controller/nameservice"
	"github.com/apache/rocketmq-operator/pkg/controller/topictransfer"

	// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
	// to ensure that exec-entrypoint and run can make use of them.
	_ "k8s.io/client-go/plugin/pkg/client/auth"

	"k8s.io/apimachinery/pkg/runtime"
	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
	ctrl "sigs.k8s.io/controller-runtime"
	"sigs.k8s.io/controller-runtime/pkg/healthz"
	"sigs.k8s.io/controller-runtime/pkg/log/zap"
	//+kubebuilder:scaffold:imports
)

//+kubebuilder:rbac:groups=coordination.k8s.io,resources=leases,verbs=get;list;watch;create;update;patch;delete
//+kubebuilder:rbac:groups="",resources=configmaps,verbs=get;list;watch;create;update;patch;delete
//+kubebuilder:rbac:groups="",resources=events,verbs=create;patch

var (
	scheme   = runtime.NewScheme()
	setupLog = ctrl.Log.WithName("setup")
)

func init() {
	utilruntime.Must(clientgoscheme.AddToScheme(scheme))

	utilruntime.Must(rocketmqv1alpha1.AddToScheme(scheme))
	//+kubebuilder:scaffold:scheme
}

func main() {
	var metricsAddr string
	var enableLeaderElection bool
	var probeAddr string
	var watchNamespace string
	flag.StringVar(&watchNamespace, "watch-namespace", os.Getenv("WATCH_NAMESPACE"), "The namespace to watch, if not specified, all namespaces will be watched")
	flag.StringVar(&metricsAddr, "metrics-bind-address", ":8383", "The address the metric endpoint binds to.")
	flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
	flag.BoolVar(&enableLeaderElection, "leader-elect", false,
		"Enable leader election for controller manager. "+
			"Enabling this will ensure there is only one active controller manager.")
	opts := zap.Options{
		Development: true,
	}
	opts.BindFlags(flag.CommandLine)
	flag.Parse()

	ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))

	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
		Scheme:                 scheme,
		MetricsBindAddress:     metricsAddr,
		Port:                   9443,
		HealthProbeBindAddress: probeAddr,
		LeaderElection:         enableLeaderElection,
		LeaderElectionID:       "2516c052.apache.org",
		Namespace:              watchNamespace,
	})
	if err != nil {
		setupLog.Error(err, "unable to start manager")
		os.Exit(1)
	}

	// Setup all Controllers
	if err := broker.SetupWithManager(mgr); err != nil {
		setupLog.Error(err, "unable to add broker controller to manager")
		os.Exit(1)
	}

	if err := console.SetupWithManager(mgr); err != nil {
		setupLog.Error(err, "unable to add console controller to manager")
		os.Exit(1)
	}

	if err := nameservice.SetupWithManager(mgr); err != nil {
		setupLog.Error(err, "unable to add nameservice controller to manager")
		os.Exit(1)
	}

	if err := topictransfer.SetupWithManager(mgr); err != nil {
		setupLog.Error(err, "unable to add topictransfer controller to manager")
		os.Exit(1)
	}

	if err := rmqcontroller.SetupWithManager(mgr); err != nil {
		setupLog.Error(err, "unable to add dledger controller to manager")
		os.Exit(1)
	}

	//+kubebuilder:scaffold:builder

	if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {
		setupLog.Error(err, "unable to set up health check")
		os.Exit(1)
	}
	if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil {
		setupLog.Error(err, "unable to set up ready check")
		os.Exit(1)
	}

	setupLog.Info("starting manager")
	if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
		setupLog.Error(err, "problem running manager")
		os.Exit(1)
	}
}