Add monitoring label to filer servicemonitor (#10835)

* Add monitoring label to filer servicemonitor

* helm: label the headless filer service, not the client one

The ServiceMonitor takes its job label from the service name, and the
bundled dashboard queries job="seaweedfs-filer". Selecting the client
service would have renamed the job and blanked those panels. The
headless service also publishes not-ready addresses, so it keeps
reporting while a filer is starting up or shutting down.

---------

Co-authored-by: Chris Lu <chris.lu@gmail.com>

k8s/charts/seaweedfs/templates/filer/filer-service-client.yaml

@@ -10,9 +10,6 @@ metadata:
     app.kubernetes.io/managed-by: {{ .Release.Service }}
     app.kubernetes.io/instance: {{ .Release.Name }}
     app.kubernetes.io/component: filer
-{{- if .Values.filer.metricsPort }}
-    monitoring: "true"
-{{- end }}
 {{- if .Values.filer.annotations }}
   annotations:
     {{- toYaml .Values.filer.annotations | nindent 4 }}

k8s/charts/seaweedfs/templates/filer/filer-service.yaml

@@ -10,6 +10,9 @@ metadata:
     app.kubernetes.io/managed-by: {{ .Release.Service }}
     app.kubernetes.io/instance: {{ .Release.Name }}
     app.kubernetes.io/component: filer
+{{- if .Values.filer.metricsPort }}
+    monitoring: "true"
+{{- end }}
   annotations:
     service.alpha.kubernetes.io/tolerate-unready-endpoints: "true"
 {{- if .Values.filer.annotations }}

k8s/charts/seaweedfs/templates/filer/filer-servicemonitor.yaml

@@ -30,6 +30,7 @@ spec:
       app.kubernetes.io/name: {{ template "seaweedfs.name" . }}
       app.kubernetes.io/instance: {{ .Release.Name }}
       app.kubernetes.io/component: filer
+      monitoring: "true"
 {{- end }}
 {{- end }}
 {{- end }}