restructured and improved service

Signed-off-by: Christian Kotzbauer <christian.kotzbauer@gmail.com>

charts/kured/README.md

@@ -61,12 +61,14 @@ The following changes have been made compared to the stable chart:
 | `serviceAccount.name`   | Service account name to create (or use if `serviceAccount.create` is false) | (chart fullname)           |
 | `podSecurityPolicy.create` | Create podSecurityPolicy                                                 | `false`                     |
 | `resources`             | Resources requests and limits.                                              | `{}`                       |
-| `metrics.create`        | Create a Service for the metrics endpoint                                   | `false`                    |
-| `metrics.serviceMonitor.create` | Create a ServiceMonitor for prometheus-operator                     | `true`                    |
-| `metrics.serviceMonitor.namespace` | The namespace to create the ServiceMonitor in                    | `""`                    |
-| `metrics.serviceMonitor.labels` | Additional labels for the ServiceMonitor                            | `{}`                    |
-| `metrics.serviceMonitor.interval` | Interval prometheus should scrape the endpoint                    | `60s`                   |
-| `metrics.serviceMonitor.scrapeTimeout` | A custom scrapeTimeout for prometheus                        | `""`                    |
+| `metrics.create`        | Create a ServiceMonitor for prometheus-operator                             | `false`                    |
+| `metrics.namespace`     | The namespace to create the ServiceMonitor in                               | `""`                    |
+| `metrics.labels`        | Additional labels for the ServiceMonitor                                    | `{}`                    |
+| `metrics.interval`      | Interval prometheus should scrape the endpoint                              | `60s`                   |
+| `metrics.scrapeTimeout` | A custom scrapeTimeout for prometheus                                       | `""`                    |
+| `service.create`        | Create a Service for the metrics endpoint                                   | `false`                    |
+| `service.port`          | Port of the service to expose                                               | `8080`                     |
+| `serviceAnnotations`    | Annotations to apply to the service (eg to add Prometheus annotations)      | `{}`                       |
 | `priorityClassName`     | Priority Class to be used by the pods                                       | `""`                       |
 | `tolerations`           | Tolerations to apply to the daemonset (eg to allow running on master)       | `[{"key": "node-role.kubernetes.io/master", "effect": "NoSchedule"}]`|
 | `affinity`              | Affinity for the daemonset (ie, restrict which nodes kured runs on)         | `{}`                       |
@@ -95,8 +97,9 @@ metrics:
 #### Prometheus Annotations
 
 ```yaml
-podAnnotations:
-  prometheus.io/scrape: "true"
-  prometheus.io/path: "/metrics"
-  prometheus.io/port: "8080"
+service:
+  annotations:
+    prometheus.io/scrape: "true"
+    prometheus.io/path: "/metrics"
+    prometheus.io/port: "8080"
 ```

charts/kured/templates/service.yaml

@@ -1,15 +1,22 @@
-{{- if .Values.metrics.create }}
+{{- if or .Values.service.create .Values.metrics.create }}
 apiVersion: v1
 kind: Service
 metadata:
   name: {{ template "kured.fullname" . }}
   labels:
     {{- include "kured.labels" . | nindent 4 }}
+  {{- if .Values.service.annotations }}
+  annotations:
+  {{- range $key, $value := .Values.service.annotations }}
+    {{ $key }}: {{ $value | quote }}
+  {{- end }}
+  {{- end }}
 spec:
   type: ClusterIP
   ports:
     - name: metrics
-      port: 8080
+      port: {{ .Values.service.port }}
+      targetPort: 8080
   selector:
     {{- include "kured.labels" . | nindent 4 }}
 {{- end }}

charts/kured/templates/servicemonitor.yaml

@@ -1,21 +1,21 @@
-{{- if and .Values.metrics.create .Values.metrics.serviceMonitor.create }}
+{{- if .Values.metrics.create }}
 apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
   name: {{ template "kured.fullname" . }}
-  {{- if .Values.metrics.serviceMonitor.namespace }}
-  namespace: {{ .Values.metrics.serviceMonitor.namespace }}
+  {{- if .Values.metrics.namespace }}
+  namespace: {{ .Values.metrics.namespace }}
   {{- end }}
   labels:
     {{- include "kured.labels" . | nindent 4 }}
-    {{- if .Values.metrics.serviceMonitor.labels }}
-    {{- toYaml .Values.metrics.serviceMonitor.labels | nindent 4 }}
+    {{- if .Values.metrics.labels }}
+    {{- toYaml .Values.metrics.labels | nindent 4 }}
     {{- end }}
 spec:
   endpoints:
-  - interval: {{ .Values.metrics.serviceMonitor.interval }}
-    {{- if .Values.metrics.serviceMonitor.scrapeTimeout }}
-    scrapeTimeout: {{ .Values.metrics.serviceMonitor.scrapeTimeout }}
+  - interval: {{ .Values.metrics.interval }}
+    {{- if .Values.metrics.scrapeTimeout }}
+    scrapeTimeout: {{ .Values.metrics.scrapeTimeout }}
     {{- end }}
     honorLabels: true
     targetPort: 8080

charts/kured/values.yaml

@@ -40,12 +40,15 @@ resources: {}
 
 metrics:
   create: false
-  serviceMonitor:
-    create: true
-    namespace: ""
-    labels: {}
-    interval: 60s
-    scrapeTimeout: ""
+  namespace: ""
+  labels: {}
+  interval: 60s
+  scrapeTimeout: ""
+
+service:
+  create: false
+  port: 8080
+  annotations: {}
 
 priorityClassName: ""