[argocd-notifications] add monitoring and slack bot service annotations (#411)

* feat: add slack bot service annotations to argocd-notifications

* feat: add monitoring to argocd-notifications

charts/argocd-notifications/templates/_helpers.tpl

@@ -43,6 +43,19 @@ app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
 app.kubernetes.io/managed-by: {{ .Release.Service }}
 {{- end -}}
 
+{{/*
+Common metrics labels
+*/}}
+{{- define "argocd-notifications.metrics.labels" -}}
+helm.sh/chart: {{ include "argocd-notifications.chart" . }}
+{{ include "argocd-notifications.metrics.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+
 {{/*
 Common slack bot labels
 */}}
@@ -63,6 +76,14 @@ app.kubernetes.io/name: {{ include "argocd-notifications.name" . }}
 app.kubernetes.io/instance: {{ .Release.Name }}
 {{- end -}}
 
+{{/*
+Selector metrics labels
+*/}}
+{{- define "argocd-notifications.metrics.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "argocd-notifications.name" . }}-metrics
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
 {{/*
 Selector slack bot labels
 */}}

charts/argocd-notifications/templates/bots/slack/service.yaml

@@ -3,6 +3,10 @@ apiVersion: v1
 kind: Service
 metadata:
   name: {{ include "argocd-notifications.name" . }}-bot
+  {{- if .Values.bots.slack.service.annotations }}
+  annotations:
+    {{- toYaml .Values.bots.slack.service.annotations | nindent 4 }}
+  {{- end }}
 spec:
   ports:
   - name: server

charts/argocd-notifications/templates/deployment.yaml

@@ -29,6 +29,16 @@ spec:
           command:
             - /app/argocd-notifications
             - controller
+            - --loglevel={{ .Values.logLevel }}
+            {{- if .Values.metrics.enabled }}
+            - --metrics-port={{ .Values.metrics.port }}
+            {{- end }}
+          ports:
+          {{- if .Values.metrics.enabled }}
+          - containerPort: {{ .Values.metrics.port }}
+            name: metrics
+            protocol: TCP
+          {{- end }}
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}

charts/argocd-notifications/templates/service-metrics.yaml

@@ -0,0 +1,15 @@
+{{- if .Values.metrics.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "argocd-notifications.name" . }}-metrics
+  labels:
+    {{- include "argocd-notifications.metrics.labels" . | nindent 4 }}
+spec:
+  selector:
+    {{- include "argocd-notifications.selectorLabels" . | nindent 4 }}
+  ports:
+  - name: metrics
+    port: {{ .Values.metrics.port }}
+    targetPort: {{ .Values.metrics.port }}
+{{- end }}

charts/argocd-notifications/templates/servicemonitor.yaml

@@ -0,0 +1,30 @@
+{{- if and .Values.metrics.enabled .Values.metrics.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "argocd-notifications.name" . }}-metrics
+  {{- if .Values.metrics.serviceMonitor.namespace }}
+  namespace: {{ .Values.metrics.serviceMonitor.namespace }}
+  {{- end }}
+  labels:
+    {{- include "argocd-notifications.metrics.labels" . | nindent 4 }}
+    {{- if .Values.metrics.serviceMonitor.additionalLabels }}
+      {{- toYaml .Values.metrics.serviceMonitor.additionalLabels | nindent 4 }}
+    {{- end }}
+spec:
+  endpoints:
+    - port: metrics
+      path: /metrics
+      {{- if .Values.metrics.serviceMonitor.interval }}
+      interval: {{ .Values.metrics.serviceMonitor.interval }}
+      {{- end }}
+      {{- if .Values.metrics.serviceMonitor.scrapeTimeout }}
+      scrapeTimeout: {{ .Values.metrics.serviceMonitor.scrapeTimeout }}
+      {{- end }}
+  namespaceSelector:
+    matchNames:
+      - {{ .Release.Namespace }}
+  selector:
+    matchLabels:
+      {{- include "argocd-notifications.metrics.selectorLabels" . | nindent 6 }}
+{{- end }}