2020-10-12 ML: add deployment section

README.md

@@ -341,3 +341,48 @@ spec:
 ```bash
 $ kubectl --context=<host-cluster-context> create -f resource/externaldns.yaml
 ```
+
+### Federate deployment
+
+Now create the federated deployment (for this example we used a simple "Hello World" image):
+
+```yaml
+# federated_deployment.yaml
+apiVersion: types.kubefed.io/v1beta1
+kind: FederatedDeployment
+metadata:
+  name: fed-helloworld
+  namespace: fed-namespace
+spec:
+  template:
+    metadata:
+      name: helloworld
+    spec:
+      replicas: 2
+      selector:
+        matchLabels:
+          app: helloworld
+      template:
+        metadata:
+          labels:
+            app: helloworld
+        spec:
+          containers:
+          - image: docker.io/csdgarr/hello-world:v1
+            name: helloworld
+            imagePullPolicy: IfNotPresent
+  placement:
+    clusters:
+    - name: member-cluster-1
+    - name: member-cluster-2
+  overrides:
+    - clusterName: member-cluster-2
+      clusterOverrides:
+      - path: "/spec/replicas"
+        value: 3
+
+```
+
+```bash
+$ kubectl --context=<host-cluster-context> create -f resource/federated_deployment.yaml
+```