dn

dns/dns.yaml

@@ -15,10 +15,10 @@ metadata:
   namespace: dns
 spec:
   selector: { app: etcd }
-  #ipFamilyPolicy: PreferDualStack
-  ipFamilyPolicy: SingleStack
+  ipFamilyPolicy: PreferDualStack
+  #ipFamilyPolicy: SingleStack
   ipFamilies:
-    #- IPv6
+    - IPv6
     - IPv4
   ports:
     - name: client
@@ -33,27 +33,22 @@ metadata:
   name: etcd
   namespace: dns
 spec:
-  replicas: 1
-  selector: { matchLabels: { app: etcd } }
   template:
-    metadata: { labels: { app: etcd } }
     spec:
       containers:
-        - name: etcd
-          image: quay.io/coreos/etcd:v3.6.4
-          command:
-            - /usr/local/bin/etcd
-            - --name=etcd0
-            - --data-dir=/var/lib/etcd
-            - --listen-client-urls=http://0.0.0.0:2379
-            - --advertise-client-urls=http://0.0.0.0:2379
-          ports:
-            - { name: client, containerPort: 2379, protocol: TCP }
-          volumeMounts:
-            - { name: data, mountPath: /var/lib/etcd }
-      volumes:
-        - name: data
-          persistentVolumeClaim: { claimName: etcd-data }
+      - name: etcd
+        image: quay.io/coreos/etcd:v3.6.4
+        command:
+          - /usr/local/bin/etcd
+          - --name=etcd0
+          - --data-dir=/var/lib/etcd
+          - --listen-client-urls=http://0.0.0.0:2379,http://[::]:2379
+          - --advertise-client-urls=http://etcd.dns.svc:2379
+        readinessProbe:
+          httpGet: { path: /health, port: 2379 }
+          initialDelaySeconds: 2
+          periodSeconds: 3
+
 ---
 apiVersion: v1
 kind: ConfigMap