Add labels to autoscaling runner set subresources to allow easier inspection (#2391)

Co-authored-by: Tingluo Huang <tingluohuang@github.com>

charts/gha-runner-scale-set/templates/_helpers.tpl

@@ -40,6 +40,7 @@ helm.sh/chart: {{ include "gha-runner-scale-set.chart" . }}
 app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
 {{- end }}
 app.kubernetes.io/managed-by: {{ .Release.Service }}
+app.kubernetes.io/part-of: gha-runner-scale-set
 {{- end }}
 
 {{/*

charts/gha-runner-scale-set/templates/autoscalingrunnerset.yaml

@@ -10,6 +10,7 @@ metadata:
   name: {{ .Release.Name }}
   namespace: {{ .Release.Namespace }}
   labels:
+    app.kubernetes.io/component: "autoscaling-runner-set"
     {{- include "gha-runner-scale-set.labels" . | nindent 4 }}
 spec:
   githubConfigUrl: {{ required ".Values.githubConfigUrl is required" (trimSuffix "/" .Values.githubConfigUrl) }}

charts/gha-runner-scale-set/tests/template_test.go

@@ -311,6 +311,10 @@ func TestTemplateRenderedAutoScalingRunnerSet(t *testing.T) {
 
 	assert.Equal(t, "gha-runner-scale-set", ars.Labels["app.kubernetes.io/name"])
 	assert.Equal(t, "test-runners", ars.Labels["app.kubernetes.io/instance"])
+	assert.Equal(t, "gha-runner-scale-set", ars.Labels["app.kubernetes.io/part-of"])
+	assert.Equal(t, "autoscaling-runner-set", ars.Labels["app.kubernetes.io/component"])
+	assert.NotEmpty(t, ars.Labels["app.kubernetes.io/version"])
+
 	assert.Equal(t, "https://github.com/actions", ars.Spec.GitHubConfigUrl)
 	assert.Equal(t, "test-runners-gha-runner-scale-set-github-secret", ars.Spec.GitHubConfigSecret)