Add configurable log format to values.yaml and propagate it to listener (#2686)

controllers/actions.github.com/constants.go

@@ -1,6 +1,9 @@
 package actionsgithubcom
 
-import corev1 "k8s.io/api/core/v1"
+import (
+	"github.com/actions/actions-runner-controller/logging"
+	corev1 "k8s.io/api/core/v1"
+)
 
 const (
 	LabelKeyRunnerTemplateHash = "runner-template-hash"
@@ -60,5 +63,11 @@ const (
 // to the listener when ImagePullPolicy is not specified
 const DefaultScaleSetListenerImagePullPolicy = corev1.PullIfNotPresent
 
+// DefaultScaleSetListenerLogLevel is the default log level applied
+const DefaultScaleSetListenerLogLevel = string(logging.LogLevelDebug)
+
+// DefaultScaleSetListenerLogFormat is the default log format applied
+const DefaultScaleSetListenerLogFormat = string(logging.LogFormatText)
+
 // ownerKey is field selector matching the owner name of a particular resource
 const resourceOwnerKey = ".metadata.controller"

controllers/actions.github.com/resourcebuilder.go

@@ -10,6 +10,7 @@ import (
 	"github.com/actions/actions-runner-controller/build"
 	"github.com/actions/actions-runner-controller/github/actions"
 	"github.com/actions/actions-runner-controller/hash"
+	"github.com/actions/actions-runner-controller/logging"
 	corev1 "k8s.io/api/core/v1"
 	rbacv1 "k8s.io/api/rbac/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -46,6 +47,27 @@ func SetListenerImagePullPolicy(pullPolicy string) bool {
 	}
 }
 
+var scaleSetListenerLogLevel = DefaultScaleSetListenerLogLevel
+var scaleSetListenerLogFormat = DefaultScaleSetListenerLogFormat
+
+func SetListenerLoggingParameters(level string, format string) bool {
+	switch level {
+	case logging.LogLevelDebug, logging.LogLevelInfo, logging.LogLevelWarn, logging.LogLevelError:
+	default:
+		return false
+	}
+
+	switch format {
+	case logging.LogFormatJSON, logging.LogFormatText:
+	default:
+		return false
+	}
+
+	scaleSetListenerLogLevel = level
+	scaleSetListenerLogFormat = format
+	return true
+}
+
 type resourceBuilder struct{}
 
 func (b *resourceBuilder) newAutoScalingListener(autoscalingRunnerSet *v1alpha1.AutoscalingRunnerSet, ephemeralRunnerSet *v1alpha1.EphemeralRunnerSet, namespace, image string, imagePullSecrets []corev1.LocalObjectReference) (*v1alpha1.AutoscalingListener, error) {
@@ -128,6 +150,14 @@ func (b *resourceBuilder) newScaleSetListenerPod(autoscalingListener *v1alpha1.A
 			Name:  "GITHUB_RUNNER_SCALE_SET_ID",
 			Value: strconv.Itoa(autoscalingListener.Spec.RunnerScaleSetId),
 		},
+		{
+			Name:  "GITHUB_RUNNER_LOG_LEVEL",
+			Value: scaleSetListenerLogLevel,
+		},
+		{
+			Name:  "GITHUB_RUNNER_LOG_FORMAT",
+			Value: scaleSetListenerLogFormat,
+		},
 	}
 	listenerEnv = append(listenerEnv, envs...)