example: introduce start delay to give dns additional time to update (#7)

* example: introduce start delay to give dns additional time to update

Author: vasiliy-t

README.md

@@ -135,6 +135,21 @@ Tarantool Operator is up and running.
      kubectl get pods --watch
      ```
 
+1.  Ensure cluster became operational:
+
+    ```shell
+    kubectl describe clusters.tarantool.io examples-kv-cluster
+    ```
+
+    wait until Status.State is Ready:
+
+    ```shell
+    ...
+    Status:
+      State:  Ready
+    ...
+    ```
+
 1. Access the cluster web UI:
 
    1. Get `minikube` vm IP-address:

README_RUS.md

@@ -135,6 +135,22 @@ Kubernetes-оператор реализует API версии `tarantool.io/v1
      kubectl get pods --watch
      ```
 
+
+1.  Удостоверьтесь, что Cluster готов к работе:
+
+    ```shell
+    kubectl describe clusters.tarantool.io examples-kv-cluster
+    ```
+
+    ожидаем, когда поле Status.State примет значение Ready:
+
+    ```shell
+    ...
+    Status:
+      State:  Ready
+    ...
+    ```
+
 1. Откройте веб-интерфейс администратора кластера:
 
    1. Узнайте IP-адрес виртуальной машины `minikube`:

deploy/operator.yaml

@@ -15,7 +15,7 @@ spec:
       serviceAccountName: tarantool-operator
       containers:
         - name: tarantool-operator
-          image: vasiliyt/tarantool-operator:dev
+          image: vasiliyt/tarantool-operator:0.0.1
           command:
           - tarantool-operator
           imagePullPolicy: Always

examples/kv/deployment.yaml

@@ -69,7 +69,7 @@ spec:
             value: "1"
       containers:
       - name: pim-storage
-        image: vasiliyt/tarantool-operator-example-kv:devel
+        image: vasiliyt/tarantool-operator-examples-kv:0.0.2
         volumeMounts:
           - mountPath: "/tarantool/data"
             name: www
@@ -128,7 +128,7 @@ spec:
             value: "1"
       containers:
       - name: pim-router
-        image: vasiliyt/tarantool-operator-example-kv:devel
+        image: vasiliyt/tarantool-operator-examples-kv:0.0.2
         volumeMounts:
           - mountPath: "/tarantool/data"
             name: www

examples/kv/key-value-store/init.lua

@@ -68,7 +68,7 @@ local t = resolve_uri(advertise_uri, 50)
 if not t then os.exit(1) end
 fiber.sleep(5)
 
-local ok, err = cluster.cfg({
+local ok, err = cartridge.cfg({
     alias = instance_name,
     workdir = work_dir,
     advertise_uri = advertise_uri,