Add possibiliy to define statefulset labels (#130)

This change adds a new value *statefulset.labels* to allow the user to add custom labels to the StatefulSet.

An example of where this could be useful is if gitea's pvc is stored on OpenEBS. With this new option, the user can add the extra *openebs.io/sts-target-affinity* label to specify that the volume target pod should run on the same node as gitea's StatefulSet.

Co-authored-by: Baptiste Covolato <b.covolato@gmail.com>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/130
Reviewed-by: luhahn <luhahn@noreply.gitea.io>
Reviewed-by: lafriks <lafriks@noreply.gitea.io>
Co-authored-by: Nakrez <nakrez@noreply.gitea.io>
Co-committed-by: Nakrez <nakrez@noreply.gitea.io>

templates/gitea/statefulset.yaml

@@ -9,6 +9,9 @@ spec:
   selector:
     matchLabels:
       {{- include "gitea.selectorLabels" . | nindent 6 }}
+      {{- if .Values.statefulset.labels }}
+      {{- toYaml .Values.statefulset.labels | nindent 6 }}
+      {{- end }}
   serviceName: {{ include "gitea.fullname" . }}
   template:
     metadata:
@@ -21,6 +24,9 @@ spec:
         {{- end }}
       labels:
         {{- include "gitea.labels" . | nindent 8 }}
+        {{- if .Values.statefulset.labels }}
+        {{- toYaml .Values.statefulset.labels | nindent 8 }}
+        {{- end }}
     spec:
       {{- with .Values.imagePullSecrets }}
       imagePullSecrets:

values.yaml

@@ -69,6 +69,7 @@ statefulset:
     # - name: VARIABLE
     #   value: my-value
   terminationGracePeriodSeconds: 60
+  labels: {}
 
 persistence:
   enabled: true