add logging to the operator

add logging

cmd/main.go

@@ -24,15 +24,15 @@ import (
 
 	// 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"
-
+	"go.uber.org/zap"
 	"k8s.io/apimachinery/pkg/runtime"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
+	_ "k8s.io/client-go/plugin/pkg/client/auth"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/certwatcher"
 	"sigs.k8s.io/controller-runtime/pkg/healthz"
-	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+	//"sigs.k8s.io/controller-runtime/pkg/log/zap"
 	"sigs.k8s.io/controller-runtime/pkg/metrics/filters"
 	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
 	"sigs.k8s.io/controller-runtime/pkg/webhook"
@@ -56,6 +56,7 @@ func init() {
 
 // nolint:gocyclo
 func main() {
+	var logFilePath string
 	var metricsAddr string
 	var metricsCertPath, metricsCertName, metricsCertKey string
 	var webhookCertPath, webhookCertName, webhookCertKey string
@@ -81,13 +82,19 @@ func main() {
 	flag.StringVar(&metricsCertKey, "metrics-cert-key", "tls.key", "The name of the metrics server key file.")
 	flag.BoolVar(&enableHTTP2, "enable-http2", false,
 		"If set, HTTP/2 will be enabled for the metrics and webhook servers")
-	opts := zap.Options{
-		Development: true,
-	}
-	opts.BindFlags(flag.CommandLine)
+	flag.StringVar(&logFilePath, "log-file", "/var/log/etcd-operator", "The log file to write logs to.")
+	/*
+		opts := zap.Options{
+			Development: true,
+		}
+		opts.BindFlags(flag.CommandLine)
+	*/
 	flag.Parse()
 
-	ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
+	logger := CreateFileLogger(logFilePath, zap.DebugLevel)
+
+	//ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
+	ctrl.SetLogger(logger)
 
 	// if the enable-http2 flag is false (the default), http/2 should be disabled
 	// due to its vulnerabilities. More specifically, disabling http/2 will