/
root.go
103 lines (90 loc) · 3.39 KB
/
root.go
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package cmd
import (
"context"
"github.com/spf13/cobra"
"k8s.io/client-go/rest"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/healthz"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
"github.com/gojekfarm/darkroom-operator/cmd/version"
"github.com/gojekfarm/darkroom-operator/internal/controllers"
"github.com/gojekfarm/darkroom-operator/internal/runtime"
pkglog "github.com/gojekfarm/darkroom-operator/pkg/log"
// +kubebuilder:scaffold:imports
)
var (
setupLog = pkglog.Log.WithName("operator").WithName("setup")
)
func newRootCmd(opts rootCmdOpts) *cobra.Command {
args := struct {
metricsAddr string
healthProbeAddr string
enableLeaderElection bool
certDir string
}{}
cmd := &cobra.Command{
Use: "darkroom-operator",
Short: "Darkroom Operator helps deploy Darkroom in a Kubernetes Cluster",
RunE: func(cmd *cobra.Command, _ []string) error {
pkglog.SetLogger(zap.New(zap.UseDevMode(true), zap.WriteTo(cmd.OutOrStdout())))
mgr, err := opts.NewManager(opts.GetConfigOrDie(), ctrl.Options{
Scheme: runtime.Scheme(),
MetricsBindAddress: args.metricsAddr,
Port: 9443,
HealthProbeBindAddress: args.healthProbeAddr,
LeaderElection: args.enableLeaderElection,
LeaderElectionID: "750f7516.gojek.io",
CertDir: args.certDir,
})
if err != nil {
setupLog.Error(err, "unable to start manager")
return err
}
r := &controllers.DarkroomReconciler{
Client: mgr.GetClient(),
Log: pkglog.Log.WithName("controllers").WithName("darkroom-reconciler"),
Scheme: mgr.GetScheme(),
}
if err = r.SetupControllerWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create controller", "controller", "Darkroom")
return err
}
_ = r.SetupWebhookWithManager(mgr)
// +kubebuilder:scaffold:builder
if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {
setupLog.Error(err, "unable to set up health check")
return err
}
if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil {
setupLog.Error(err, "unable to set up ready check")
return err
}
setupLog.Info("starting manager")
if err := mgr.Start(opts.SetupSignalHandler()); err != nil {
setupLog.Error(err, "problem running manager")
return err
}
return nil
},
}
cmd.PersistentFlags().StringVar(&args.metricsAddr, "metrics-bind-address", ":8080", "The address the metric endpoint binds to.")
cmd.PersistentFlags().StringVar(&args.healthProbeAddr, "health-probe-bind-address", ":8081", "The address the metric endpoint binds to.")
cmd.PersistentFlags().StringVar(&args.certDir, "cert-dir", "", "The directory containing server certificate and key.")
cmd.PersistentFlags().BoolVar(&args.enableLeaderElection, "leader-elect", false, "Enable leader election for controller manager. "+
"Enabling this will ensure there is only one active controller manager.")
return cmd
}
type rootCmdOpts struct {
SetupSignalHandler func() context.Context
NewManager func(config *rest.Config, options ctrl.Options) (ctrl.Manager, error)
GetConfigOrDie func() *rest.Config
}
func NewRootCmd() *cobra.Command {
cmd := newRootCmd(rootCmdOpts{
SetupSignalHandler: ctrl.SetupSignalHandler,
NewManager: ctrl.NewManager,
GetConfigOrDie: ctrl.GetConfigOrDie,
})
cmd.AddCommand(version.New())
return cmd
}