add optional service annotations to nexus chart (#2783)

stable/sonatype-nexus/templates/service.yaml

@@ -7,6 +7,10 @@ metadata:
     chart: {{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}
     release: {{ .Release.Name }}
     heritage: {{ .Release.Service }}
+{{- if .Values.service.annotations }}
+  annotations:
+{{ toYaml .Values.service.annotations | indent 4 }}
+{{- end }}
 spec:
   type: {{ .Values.service.type }}
   ports:

stable/sonatype-nexus/values.yaml

@@ -17,6 +17,8 @@ service:
   livenessProbe:
     initialDelaySeconds: 30
     periodSeconds: 30
+  annotations:
+  # foo.io/bar: "true"
 ingress:
   enabled: false
   # Used to create an Ingress record.