1770 update log format and add additional fields to webhook server logs (#1771)

* 1770 update log format and add runID and Id to worflow logs

update tests, change log format for controllers.HorizontalRunnerAutoscalerGitHubWebhook

use logging package

remove unused modules

add setup name to setuplog

add flag to change log format

change flag name to enableProdLogConfig

move log opts to logger package

remove empty else and reset timeEncoder

update flag description

use get function to handle nil

rename flag and update logger function

Update main.go

Co-authored-by: Yusuke Kuoka <ykuoka@gmail.com>

Update controllers/horizontal_runner_autoscaler_webhook.go

Co-authored-by: Yusuke Kuoka <ykuoka@gmail.com>

Update logging/logger.go

Co-authored-by: Yusuke Kuoka <ykuoka@gmail.com>

copy log opt per each NewLogger call

revert to use autoscaler.log

update flag descript and remove unused imports

add logFormat to readme

 rename setupLog to logger

make fmt

* Fix E2E along the way

Co-authored-by: Yusuke Kuoka <ykuoka@gmail.com>

main.go

@@ -30,6 +30,7 @@ import (
 	"github.com/actions-runner-controller/actions-runner-controller/logging"
 	"github.com/kelseyhightower/envconfig"
 	"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"
@@ -43,7 +44,6 @@ const (
 
 var (
 	scheme = runtime.NewScheme()
-	log    = ctrl.Log.WithName("actions-runner-controller")
 )
 
 func init() {
@@ -84,6 +84,7 @@ func main() {
 		dockerRegistryMirror string
 		namespace            string
 		logLevel             string
+		logFormat            string
 
 		commonRunnerLabels commaSeparatedStringSlice
 	)
@@ -119,10 +120,16 @@ func main() {
 	flag.Var(&commonRunnerLabels, "common-runner-labels", "Runner labels in the K1=V1,K2=V2,... format that are inherited all the runners created by the controller. See https://github.com/actions-runner-controller/actions-runner-controller/issues/321 for more information")
 	flag.StringVar(&namespace, "watch-namespace", "", "The namespace to watch for custom resources. Set to empty for letting it watch for all namespaces.")
 	flag.StringVar(&logLevel, "log-level", logging.LogLevelDebug, `The verbosity of the logging. Valid values are "debug", "info", "warn", "error". Defaults to "debug".`)
+	flag.StringVar(&logFormat, "log-format", "text", `The log format. Valid options are "text" and "json". Defaults to "text"`)
+
 	flag.Parse()
 
-	logger := logging.NewLogger(logLevel)
-	c.Log = &logger
+	log, err := logging.NewLogger(logLevel, logFormat)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error: creating logger: %v\n", err)
+		os.Exit(1)
+	}
+	c.Log = &log
 
 	ghClient, err = c.NewClient()
 	if err != nil {
@@ -130,7 +137,7 @@ func main() {
 		os.Exit(1)
 	}
 
-	ctrl.SetLogger(logger)
+	ctrl.SetLogger(log)
 
 	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
 		Scheme:             scheme,