Add lighthouse-coredns charts

1. Adds deployment amd configmap
2. Updates RBAC

submariner/templates/_helpers.tpl

@@ -74,3 +74,10 @@ Create the name of the submariner-lighthouse service account to use
     {{ default "default" .Values.serviceAccounts.lighthouse.name }}
 {{- end -}}
 {{- end -}}
+
+{{/*
+Create the name of the submariner-lighthouse-coredns service name to use
+*/}}
+{{- define "submariner.lighthouseDnsName" -}}
+{{- default (printf "%s-lighthouse-coredns" (include "submariner.fullname" .)) .Values.lighthouseCoredns.name }}
+{{- end -}}

submariner/templates/lighthouse-coredns.yaml

@@ -0,0 +1,74 @@
+{{- if .Values.submariner.serviceDiscovery }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ template "submariner.lighthouseDnsName" . }}
+  labels:
+    heritage: {{ .Release.Service | quote }}
+    release: {{ .Release.Name | quote }}
+    chart: {{ template "submariner.chart" . }}
+    app: {{ template "submariner.lighthouseDnsName" . }}
+    component: lighthouse-coredns
+spec:
+  selector:
+    matchLabels:
+      app: {{ template "submariner.lighthouseDnsName" . }}
+  replicas: 2
+  template:
+    metadata:
+      labels:
+        app: {{ template "submariner.lighthouseDnsName" . }}
+    spec:
+      containers:
+        - args:
+            - -conf
+            - /etc/coredns/Corefile
+          image: {{ .Values.lighthouseCoredns.image.repository }}:{{ .Values.lighthouseCoredns.image.tag }}
+          imagePullPolicy: {{ .Values.lighthouseCoredns.image.pullPolicy }}
+          name: {{ template "submariner.fullname" . }}-lighthouse-agent
+          volumeMounts:
+            - mountPath: /etc/coredns
+              name: config-volume
+              readOnly: true
+      serviceAccountName: {{ template "submariner.lighthouseServiceAccountName" . }}
+      volumes:
+        - configMap:
+            defaultMode: 420
+            items:
+              - key: Corefile
+                path: Corefile
+            name: {{ template "submariner.lighthouseDnsName" . }}
+          name: config-volume
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "submariner.lighthouseDnsName" . }}
+  labels:
+    app: {{ template "submariner.lighthouseDnsName" . }}
+spec:
+  ports:
+    - name: udp
+      port: 53
+      protocol: UDP
+      targetPort: 53
+  selector:
+    app: {{ template "submariner.lighthouseDnsName" . }}
+  type: ClusterIP
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "submariner.lighthouseDnsName" . }}
+data:
+  Corefile: |
+    supercluster.local:53 {
+{{- if .Values.submariner.debug }}
+        log
+{{- end }}
+        lighthouse
+        errors
+        health
+        ready
+    }
+{{- end }}

submariner/templates/rbac.yaml

@@ -118,7 +118,7 @@ metadata:
   name: {{ template "submariner.fullname" . }}:lighthouse
 rules:
   - apiGroups: [""]
-    resources: ["services", "namespaces"]
+    resources: ["services", "namespaces", "configmaps"]
     verbs: ["get", "list", "watch", "update"]
   - apiGroups: ["lighthouse.submariner.io"]
     resources: ["*"]

submariner/values.yaml

@@ -64,6 +64,12 @@ lighthouse:
     repository: lighthouse-agent
     tag: local
     pullPolicy: IfNotPresent
+lighthouseCoredns:
+  name: ""
+  image:
+    repository: lighthouse-coredns
+    tag: local
+    pullPolicy: IfNotPresent
 serviceAccounts:
   engine:
     create: true