update files to make them compatible for newer kube versions

ch03/etcd-cluster-cr.yaml

@@ -1,7 +1,7 @@
-apiVersion: etcd.database.coreos.com/v1beta2
+apiVersion: etcd.database.coreos.com/v1
 kind: EtcdCluster
 metadata:
   name: example-etcd-cluster
 spec:
   size: 3
-  version: 3.1.10
+  version: latest

ch03/etcd-operator-crd.yaml

@@ -14,7 +14,7 @@ spec:
     singular: etcdcluster
   scope: Namespaced
   versions:
-  - name: v1beta2
+  - name: v1
     served: true
     storage: true
     schema:
@@ -28,3 +28,21 @@ spec:
                 type: integer
               version:
                 type: string
+          status:
+            type: object
+        required: [spec]
+    additionalPrinterColumns:
+    - name: Size
+      type: integer
+      description: The size of the cluster
+      jsonPath: .spec.size
+    - name: Version
+      type: string
+      description: The version of the cluster
+      jsonPath: .spec.version
+    - name: Status
+      type: string
+      description: The status of the cluster
+      jsonPath: .status.phase
+    subresources:
+      status: {}

ch03/etcd-operator-deployment.yaml

@@ -14,7 +14,7 @@ spec:
     spec:
       containers:
       - name: etcd-operator
-        image: quay.io/coreos/etcd-operator:v0.9.4
+        image: quay.io/coreos/etcd-operator:latest
         command:
         - etcd-operator
         - --create-crd=false