Add docs to illustrate how to schedule pod to specific node (#12871)

content/en/examples/examples_test.go

@@ -446,6 +446,7 @@ func TestExampleObjectSchemas(t *testing.T) {
 			"commands":                {&api.Pod{}},
 			"init-containers":         {&api.Pod{}},
 			"lifecycle-events":        {&api.Pod{}},
+			"pod-nginx-specific-node": {&api.Pod{}},
 			"pod-nginx":               {&api.Pod{}},
 			"pod-with-node-affinity":  {&api.Pod{}},
 			"pod-with-pod-affinity":   {&api.Pod{}},

content/en/examples/pods/pod-nginx-specific-node.yaml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx
+spec:
+  nodeName: foo-node # schedule pod to specific node
+  containers:
+  - name: nginx
+    image: nginx
+    imagePullPolicy: IfNotPresent