main.go

/*
 * Copyright Rivtower Technologies LLC.
 *
 * Licensed 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 (
	"context"
	"flag"
	"os"

	// 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"
	"sigs.k8s.io/controller-runtime/pkg/client"

	"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"

	citacloudv1 "github.com/cita-cloud/cita-cloud-operator/api/v1"
	"github.com/cita-cloud/cita-cloud-operator/controllers"
	//+kubebuilder:scaffold:imports
)

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

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

	utilruntime.Must(citacloudv1.AddToScheme(scheme))
	//+kubebuilder:scaffold:scheme
}

func main() {
	var metricsAddr string
	var enableLeaderElection bool
	var probeAddr string
	flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "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:       "8676995c.rivtower.com",
	})
	if err != nil {
		setupLog.Error(err, "unable to start manager")
		os.Exit(1)
	}

	if err = (&controllers.ChainConfigReconciler{
		Client: mgr.GetClient(),
		Scheme: mgr.GetScheme(),
	}).SetupWithManager(mgr); err != nil {
		setupLog.Error(err, "unable to create controller", "controller", "ChainConfig")
		os.Exit(1)
	}
	if err = (&controllers.ChainNodeReconciler{
		Client: mgr.GetClient(),
		Scheme: mgr.GetScheme(),
	}).SetupWithManager(mgr); err != nil {
		setupLog.Error(err, "unable to create controller", "controller", "ChainNode")
		os.Exit(1)
	}

	// set chainNode.spec.chainName index
	err = mgr.GetCache().IndexField(context.Background(), &citacloudv1.ChainNode{}, "spec.chainName", func(o client.Object) []string {
		var res []string
		res = append(res, o.(*citacloudv1.ChainNode).Spec.ChainName)
		return res
	})
	if err != nil {
		setupLog.Error(err, "set index field failed", "controller", "ChainNode")
		os.Exit(1)
	}

	if err = (&controllers.AccountReconciler{
		Client: mgr.GetClient(),
		Scheme: mgr.GetScheme(),
	}).SetupWithManager(mgr); err != nil {
		setupLog.Error(err, "unable to create controller", "controller", "Account")
		os.Exit(1)
	}

	// set account.spec.chain index
	err = mgr.GetCache().IndexField(context.Background(), &citacloudv1.Account{}, "spec.chain", func(o client.Object) []string {
		var res []string
		res = append(res, o.(*citacloudv1.Account).Spec.Chain)
		return res
	})
	if err != nil {
		setupLog.Error(err, "set account.spec.chain index field failed", "controller", "Account")
		os.Exit(1)
	}
	// set account.spec.role index
	err = mgr.GetCache().IndexField(context.Background(), &citacloudv1.Account{}, "spec.role", func(o client.Object) []string {
		var res []string
		res = append(res, string(o.(*citacloudv1.Account).Spec.Role))
		return res
	})
	if err != nil {
		setupLog.Error(err, "set account.spec.role index field failed", "controller", "Account")
		os.Exit(1)
	}

	if os.Getenv("ENABLE_WEBHOOKS") != "false" {
		if err = (&citacloudv1.Account{}).SetupWebhookWithManager(mgr); err != nil {
			setupLog.Error(err, "unable to create webhook", "webhook", "Account")
			os.Exit(1)
		}
		if err = (&citacloudv1.ChainNode{}).SetupWebhookWithManager(mgr); err != nil {
			setupLog.Error(err, "unable to create webhook", "webhook", "ChainNode")
			os.Exit(1)
		}
		if err = (&citacloudv1.ChainConfig{}).SetupWebhookWithManager(mgr); err != nil {
			setupLog.Error(err, "unable to create webhook", "webhook", "ChainConfig")
			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)
	}
}