Switch language name 'zh' to 'zh-cn'

This is the first step to rename 'zh' to 'zh-cn'. There are several reasons why we rename the language name.

- The upstream docsy theme changed the language name, leading to many warnings during site build;
  The side-effect is that the i18n strings are no longer working.
- We believe renaming the language is the right thing to do, because this move can make room for other variants of Chinese language, such as 'zh-tw', 'zh-sg' etc.

There would be several follow-ups to this PR, such as fixing the intra-site links, adding redirects etc.

We will lock up changes to zh/zh-cn pages for the moment, until this one gets in.

This PR is based on commit cdad0a7342.

content/zh-cn/examples/pods/storage/projected-secret-downwardapi-configmap.yaml

@@ -0,0 +1,35 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: volume-test
+spec:
+  containers:
+  - name: container-test
+    image: busybox:1.28
+    volumeMounts:
+    - name: all-in-one
+      mountPath: "/projected-volume"
+      readOnly: true
+  volumes:
+  - name: all-in-one
+    projected:
+      sources:
+      - secret:
+          name: mysecret
+          items:
+            - key: username
+              path: my-group/my-username
+      - downwardAPI:
+          items:
+            - path: "labels"
+              fieldRef:
+                fieldPath: metadata.labels
+            - path: "cpu_limit"
+              resourceFieldRef:
+                containerName: container-test
+                resource: limits.cpu
+      - configMap:
+          name: myconfigmap
+          items:
+            - key: config
+              path: my-group/my-config

content/zh-cn/examples/pods/storage/projected-secrets-nondefault-permission-mode.yaml

@@ -0,0 +1,27 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: volume-test
+spec:
+  containers:
+  - name: container-test
+    image: busybox:1.28
+    volumeMounts:
+    - name: all-in-one
+      mountPath: "/projected-volume"
+      readOnly: true
+  volumes:
+  - name: all-in-one
+    projected:
+      sources:
+      - secret:
+          name: mysecret
+          items:
+            - key: username
+              path: my-group/my-username
+      - secret:
+          name: mysecret2
+          items:
+            - key: password
+              path: my-group/my-password
+              mode: 511

content/zh-cn/examples/pods/storage/projected-service-account-token.yaml

@@ -0,0 +1,21 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: sa-token-test
+spec:
+  containers:
+  - name: container-test
+    image: busybox:1.28
+    volumeMounts:
+    - name: token-vol
+      mountPath: "/service-account"
+      readOnly: true
+  serviceAccountName: default
+  volumes:
+  - name: token-vol
+    projected:
+      sources:
+      - serviceAccountToken:
+          audience: api
+          expirationSeconds: 3600
+          path: token

content/zh-cn/examples/pods/storage/projected.yaml

@@ -0,0 +1,23 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: test-projected-volume
+spec:
+  containers:
+  - name: test-projected-volume
+    image: busybox:1.28
+    args:
+    - sleep
+    - "86400"
+    volumeMounts:
+    - name: all-in-one
+      mountPath: "/projected-volume"
+      readOnly: true
+  volumes:
+  - name: all-in-one
+    projected:
+      sources:
+      - secret:
+          name: user
+      - secret:
+          name: pass

content/zh-cn/examples/pods/storage/pv-claim.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: task-pv-claim
+spec:
+  storageClassName: manual
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 3Gi

content/zh-cn/examples/pods/storage/pv-duplicate.yaml

@@ -0,0 +1,22 @@
+
+apiVersion: v1
+kind: Pod
+metadata:
+  name: test
+spec:
+  containers:
+    - name: test
+      image: nginx
+      volumeMounts:
+        # 网站数据挂载
+        - name: config
+          mountPath: /usr/share/nginx/html
+          subPath: html
+        # Nginx 配置挂载
+        - name: config
+          mountPath: /etc/nginx/nginx.conf
+          subPath: nginx.conf
+  volumes:
+    - name: config
+      persistentVolumeClaim:
+        claimName: test-nfs-claim

content/zh-cn/examples/pods/storage/pv-pod.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: task-pv-pod
+spec:
+  volumes:
+    - name: task-pv-storage
+      persistentVolumeClaim:
+        claimName: task-pv-claim
+  containers:
+    - name: task-pv-container
+      image: nginx
+      ports:
+        - containerPort: 80
+          name: "http-server"
+      volumeMounts:
+        - mountPath: "/usr/share/nginx/html"
+          name: task-pv-storage
+
+

content/zh-cn/examples/pods/storage/pv-volume.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: task-pv-volume
+  labels:
+    type: local
+spec:
+  storageClassName: manual
+  capacity:
+    storage: 10Gi
+  accessModes:
+    - ReadWriteOnce
+  hostPath:
+    path: "/mnt/data"

content/zh-cn/examples/pods/storage/redis.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: redis
+spec:
+  containers:
+  - name: redis
+    image: redis
+    volumeMounts:
+    - name: redis-storage
+      mountPath: /data/redis
+  volumes:
+  - name: redis-storage
+    emptyDir: {}