Consolidate YAML files [part-13] (#9377)

This PR deals with YAML files referenced by the following two topics:
- concepts:object management
- concepts:service networking

When scanning references to the YAML files to be moved, some trivial
editings were applied to the markdown files. None of this editing should
break the build or ruin the doc otherwise.

content/en/examples/application/simple_deployment.yaml

@@ -0,0 +1,19 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-deployment
+spec:
+  selector:
+    matchLabels:
+      app: nginx
+  minReadySeconds: 5
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:1.7.9
+        ports:
+        - containerPort: 80

content/en/examples/application/update_deployment.yaml

@@ -0,0 +1,18 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-deployment
+spec:
+  selector:
+    matchLabels:
+      app: nginx
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx:1.11.9 # update the image
+        ports:
+        - containerPort: 80

content/en/examples/service/networking/curlpod.yaml

@@ -0,0 +1,28 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: curl-deployment
+spec:
+  selector:
+    matchLabels:
+      app: curlpod
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: curlpod
+    spec:
+      volumes:
+      - name: secret-volume
+        secret:
+          secretName: nginxsecret
+      containers:
+      - name: curlpod
+        command:
+        - sh
+        - -c
+        - while true; do sleep 1; done
+        image: radial/busyboxplus:curl
+        volumeMounts:
+        - mountPath: /etc/nginx/ssl
+          name: secret-volume

content/en/examples/service/networking/custom-dns.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  namespace: default
+  name: dns-example
+spec:
+  containers:
+    - name: test
+      image: nginx
+  dnsPolicy: "None"
+  dnsConfig:
+    nameservers:
+      - 1.2.3.4
+    searches:
+      - ns1.svc.cluster.local
+      - my.dns.search.suffix
+    options:
+      - name: ndots
+        value: "2"
+      - name: edns0

content/en/examples/service/networking/hostaliases-pod.yaml

@@ -0,0 +1,22 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: hostaliases-pod
+spec:
+  restartPolicy: Never
+  hostAliases:
+  - ip: "127.0.0.1"
+    hostnames:
+    - "foo.local"
+    - "bar.local"
+  - ip: "10.1.2.3"
+    hostnames:
+    - "foo.remote"
+    - "bar.remote"
+  containers:
+  - name: cat-hosts
+    image: busybox
+    command:
+    - cat
+    args:
+    - "/etc/hosts"

content/en/examples/service/networking/ingress.yaml

@@ -0,0 +1,9 @@
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: test-ingress
+spec:
+  backend:
+    serviceName: testsvc
+    servicePort: 80
+

content/en/examples/service/networking/nginx-secure-app.yaml

@@ -0,0 +1,46 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-nginx
+  labels:
+    run: my-nginx
+spec:
+  type: NodePort
+  ports:
+  - port: 8080
+    targetPort: 80
+    protocol: TCP
+    name: http
+  - port: 443
+    protocol: TCP
+    name: https
+  selector:
+    run: my-nginx
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-nginx
+spec:
+  selector:
+    matchLabels:
+      run: my-nginx
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        run: my-nginx
+    spec:
+      volumes:
+      - name: secret-volume
+        secret:
+          secretName: nginxsecret
+      containers:
+      - name: nginxhttps
+        image: bprashanth/nginxhttps:1.0
+        ports:
+        - containerPort: 443
+        - containerPort: 80
+        volumeMounts:
+        - mountPath: /etc/nginx/ssl
+          name: secret-volume

content/en/examples/service/networking/nginx-svc.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-nginx
+  labels:
+    run: my-nginx
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+  selector:
+    run: my-nginx

content/en/examples/service/networking/run-my-nginx.yaml

@@ -0,0 +1,20 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-nginx
+spec:
+  selector:
+    matchLabels:
+      run: my-nginx
+  replicas: 2
+  template:
+    metadata:
+      labels:
+        run: my-nginx
+    spec:
+      containers:
+      - name: my-nginx
+        image: nginx
+        ports:
+        - containerPort: 80
+