Format code style (#9055)

* Add code format

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content/en/docs/tasks/configure-pod-container/assign-cpu-resource.md

@@ -97,7 +97,7 @@ kubectl get pod cpu-demo --output=yaml --namespace=cpu-example
 The output shows that the one Container in the Pod has a CPU request of 500 millicpu
 and a CPU limit of 1 cpu.
 
-```shell
+```yaml
 resources:
   limits:
     cpu: "1"
@@ -185,7 +185,7 @@ The output shows that the Pod's status is Pending. That is, the Pod has not been
 scheduled to run on any Node, and it will remain in the Pending state indefinitely:
 
 
-```
+```shell
 kubectl get pod cpu-demo-2 --namespace=cpu-example
 NAME         READY     STATUS    RESTARTS   AGE
 cpu-demo-2   0/1       Pending   0          7m

content/en/docs/tasks/configure-pod-container/assign-pods-nodes.md

@@ -21,32 +21,40 @@ Kubernetes cluster.
 
 1. List the nodes in your cluster:
 
-        kubectl get nodes
+    ```shell
+    kubectl get nodes
+    ```
 
     The output is similar to this:
 
-        NAME      STATUS    AGE     VERSION
+    ```shell
-        worker0   Ready     1d      v1.6.0+fff5156
+    NAME      STATUS    AGE     VERSION
-        worker1   Ready     1d      v1.6.0+fff5156
+    worker0   Ready     1d      v1.6.0+fff5156
-        worker2   Ready     1d      v1.6.0+fff5156
+    worker1   Ready     1d      v1.6.0+fff5156
-
+    worker2   Ready     1d      v1.6.0+fff5156
+    ```
 1. Chose one of your nodes, and add a label to it:
 
-        kubectl label nodes <your-node-name> disktype=ssd
+    ```shell
+    kubectl label nodes <your-node-name> disktype=ssd
+    ```
 
     where `<your-node-name>` is the name of your chosen node.
 
 1. Verify that your chosen node has a `disktype=ssd` label:
 
-       kubectl get nodes --show-labels
+    ```shell
-
+    kubectl get nodes --show-labels
+    ```
 
     The output is similar to this:
 
-        NAME      STATUS    AGE     VERSION            LABELS
+    ```shell
-        worker0   Ready     1d      v1.6.0+fff5156     ...,disktype=ssd,kubernetes.io/hostname=worker0
+    NAME      STATUS    AGE     VERSION            LABELS
-        worker1   Ready     1d      v1.6.0+fff5156     ...,kubernetes.io/hostname=worker1
+    worker0   Ready     1d      v1.6.0+fff5156     ...,disktype=ssd,kubernetes.io/hostname=worker0
-        worker2   Ready     1d      v1.6.0+fff5156     ...,kubernetes.io/hostname=worker2
+    worker1   Ready     1d      v1.6.0+fff5156     ...,kubernetes.io/hostname=worker1
+    worker2   Ready     1d      v1.6.0+fff5156     ...,kubernetes.io/hostname=worker2
+    ```
 
     In the preceding output, you can see that the `worker0` node has a
     `disktype=ssd` label.
@@ -61,17 +69,23 @@ a `disktype=ssd` label.
 
 1. Use the configuration file to create a pod that will get scheduled on your
    chosen node:
-
+    
-        kubectl create -f https://k8s.io/examples/pods/pod-nginx.yaml
+    ```shell
+    kubectl create -f https://k8s.io/docs/tasks/configure-pod-container/pod.yaml
+    ```
 
 1. Verify that the pod is running on your chosen node:
 
-        kubectl get pods --output=wide
+    ```shell
+    kubectl get pods --output=wide
+    ```
 
     The output is similar to this:
-
+    
-        NAME     READY     STATUS    RESTARTS   AGE    IP           NODE
+    ```shell
-        nginx    1/1       Running   0          13s    10.200.0.4   worker0
+    NAME     READY     STATUS    RESTARTS   AGE    IP           NODE
+    nginx    1/1       Running   0          13s    10.200.0.4   worker0
+    ```
 
 {{% /capture %}}
 

content/en/docs/tasks/configure-pod-container/configure-volume-storage.md

@@ -37,51 +37,69 @@ restarts. Here is the configuration file for the Pod:
 
 1. Create the Pod:
 
-       kubectl create -f https://k8s.io/examples/pods/storage/redis.yaml
+    ```shell
+    kubectl create -f https://k8s.io/docs/tasks/configure-pod-container/pod-redis.yaml
+    ```
 
 1. Verify that the Pod's Container is running, and then watch for changes to
 the Pod:
 
-       kubectl get pod redis --watch
+    ```shell
-
+    kubectl get pod redis --watch
+    ```
+    
     The output looks like this:
 
-       NAME      READY     STATUS    RESTARTS   AGE
+    ```shell
-       redis     1/1       Running   0          13s
+    NAME      READY     STATUS    RESTARTS   AGE
+    redis     1/1       Running   0          13s
+    ```
 
 1. In another terminal, get a shell to the running Container:
 
-       kubectl exec -it redis -- /bin/bash
+    ```shell
+    kubectl exec -it redis -- /bin/bash
+    ```
 
 1. In your shell, go to `/data/redis`, and create a file:
 
-       root@redis:/data# cd /data/redis/
+    ```shell
-       root@redis:/data/redis# echo Hello > test-file
+    root@redis:/data# cd /data/redis/
+    root@redis:/data/redis# echo Hello > test-file
+    ```
 
 1. In your shell, list the running processes:
 
-       root@redis:/data/redis# ps aux
+    ```shell
+    root@redis:/data/redis# ps aux
+    ```
 
     The output is similar to this:
 
-       USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
+    ```shell
-       redis        1  0.1  0.1  33308  3828 ?        Ssl  00:46   0:00 redis-server *:6379
+    USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
-       root        12  0.0  0.0  20228  3020 ?        Ss   00:47   0:00 /bin/bash
+    redis        1  0.1  0.1  33308  3828 ?        Ssl  00:46   0:00 redis-server *:6379
-       root        15  0.0  0.0  17500  2072 ?        R+   00:48   0:00 ps aux
+    root        12  0.0  0.0  20228  3020 ?        Ss   00:47   0:00 /bin/bash
+    root        15  0.0  0.0  17500  2072 ?        R+   00:48   0:00 ps aux
+    ```
 
 1. In your shell, kill the redis process:
 
-       root@redis:/data/redis# kill <pid>
+    ```shell
+    root@redis:/data/redis# kill <pid>
+    ```
 
     where `<pid>` is the redis process ID (PID).
 
 1. In your original terminal, watch for changes to the redis Pod. Eventually,
 you will see something like this:
 
-       NAME      READY     STATUS     RESTARTS   AGE
+    ```shell
-       redis     1/1       Running    0          13s
+    NAME      READY     STATUS     RESTARTS   AGE
-       redis     0/1       Completed  0         6m
+    redis     1/1       Running    0          13s
-       redis     1/1       Running    1         6m
+    redis     0/1       Completed  0         6m
+    redis     1/1       Running    1         6m
+    ```
 
 At this point, the Container has terminated and restarted. This is because the
 redis Pod has a
@@ -90,7 +108,9 @@ of `Always`.
 
 1. Get a shell into the restarted Container:
 
-       kubectl exec -it redis -- /bin/bash
+    ```shell
+    kubectl exec -it redis -- /bin/bash
+    ```
 
 1. In your shell, goto `/data/redis`, and verify that `test-file` is still there.