main.go

package main

import (
	"flag"
	"os"

	"k8s.io/apimachinery/pkg/runtime"
	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
	ctrl "sigs.k8s.io/controller-runtime"
	"sigs.k8s.io/controller-runtime/pkg/healthz"
	"sigs.k8s.io/controller-runtime/pkg/log/zap"

	"github.com/krubot/terraform-operator/pkg/version"

	backendv1alpha1 "github.com/krubot/terraform-operator/pkg/apis/backend/v1alpha1"
	modulev1alpha1 "github.com/krubot/terraform-operator/pkg/apis/module/v1alpha1"
	providerv1alpha1 "github.com/krubot/terraform-operator/pkg/apis/provider/v1alpha1"
	backendcontroller "github.com/krubot/terraform-operator/pkg/controller/backend"
	modulecontroller "github.com/krubot/terraform-operator/pkg/controller/module"
	providercontroller "github.com/krubot/terraform-operator/pkg/controller/provider"
)

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

func init() {
	_ = clientgoscheme.AddToScheme(scheme)

	_ = providerv1alpha1.AddToScheme(scheme)

	_ = backendv1alpha1.AddToScheme(scheme)

	_ = modulev1alpha1.AddToScheme(scheme)
	// +kubebuilder:scaffold:scheme
}

func main() {
	var metricsAddr string
	var webhookAddr int
	var enableLeaderElection bool
	var healthAddr string

	flag.StringVar(&metricsAddr, "metrics-addr", ":8383", "The address the metric endpoint binds to.")
	flag.IntVar(&webhookAddr, "webhook-addr", 9443, "The address the webhook endpoint binds to.")
	flag.BoolVar(&enableLeaderElection, "enable-leader-election", false,
		"Enable leader election for controller manager. Enabling this will ensure there is only one active controller manager.")
	flag.StringVar(&healthAddr, "health-addr", ":9440", "The address the health endpoint binds to.")
	flag.Parse()

	ctrl.SetLogger(zap.New(func(o *zap.Options) {
		o.Development = true
	}))

	setupLog.Info("Version of terraform-operator", "version", version.Version)

	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
		Scheme:                 scheme,
		MetricsBindAddress:     metricsAddr,
		HealthProbeBindAddress: healthAddr,
		ReadinessEndpointName:  "/readyz",
		LivenessEndpointName:   "/healthz",
		LeaderElection:         enableLeaderElection,
		LeaderElectionID:       "terraform-operator-leader-election",
		Port:                   webhookAddr,
	})
	if err != nil {
		setupLog.Error(err, "unable to start manager")
		os.Exit(1)
	}

	mgr.AddHealthzCheck("Liveness", healthz.Ping)

	setupLog.Info("controller reconcile")

	if err = (&backendcontroller.ReconcileEtcdV3{
		Client: mgr.GetClient(),
		Log:    ctrl.Log.WithName("controllers").WithName("Backend").WithName("EtcdV3"),
		Scheme: mgr.GetScheme(),
	}).SetupWithEtcdV3(mgr); err != nil {
		setupLog.Error(err, "unable to create controller", "controller", "Backend")
		os.Exit(1)
	}

	if err = (&backendcontroller.ReconcileGCS{
		Client: mgr.GetClient(),
		Log:    ctrl.Log.WithName("controllers").WithName("Backend").WithName("GCS"),
		Scheme: mgr.GetScheme(),
	}).SetupWithGCS(mgr); err != nil {
		setupLog.Error(err, "unable to create controller", "controller", "Backend")
		os.Exit(1)
	}

	if err = (&providercontroller.ReconcileGoogle{
		Client: mgr.GetClient(),
		Log:    ctrl.Log.WithName("controllers").WithName("Provider").WithName("Google"),
		Scheme: mgr.GetScheme(),
	}).SetupWithManager(mgr); err != nil {
		setupLog.Error(err, "unable to create controller", "controller", "Provider")
		os.Exit(1)
	}

	if err = (&modulecontroller.ReconcileGoogleStorageBucket{
		Client: mgr.GetClient(),
		Log:    ctrl.Log.WithName("controllers").WithName("Module").WithName("GoogleStorageBucket"),
		Scheme: mgr.GetScheme(),
	}).SetupWithGoogleStorageBucket(mgr); err != nil {
		setupLog.Error(err, "unable to create controller", "controller", "Module")
		os.Exit(1)
	}

	if err = (&modulecontroller.ReconcileGoogleStorageBucketIAMMember{
		Client: mgr.GetClient(),
		Log:    ctrl.Log.WithName("controllers").WithName("Module").WithName("GoogleStorageBucketIAMMember"),
		Scheme: mgr.GetScheme(),
	}).SetupWithGoogleStorageBucketIAMMember(mgr); err != nil {
		setupLog.Error(err, "unable to create controller", "controller", "Module")
		os.Exit(1)
	}

	mgr.AddReadyzCheck("Readiness", healthz.Ping)

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