Convert site to Hugo (#8316)

This commit converts content and layout to use Hugo.
2018-05-05 18:00:51 +02:00
parent 7745f0e0c5
commit 7f3b633aa0
2327 changed files with 10928 additions and 171503 deletions
@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: cpu-demo-2
+spec:
+  containers:
+  - name: cpu-demo-ctr-2
+    image: vish/stress
+    resources:
+      limits:
+        cpu: "100"
+      requests:
+        cpu: "100"
+    args:
+    - -cpus
+    - "2"
@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: cpu-demo
+spec:
+  containers:
+  - name: cpu-demo-ctr
+    image: vish/stress
+    resources:
+      limits:
+        cpu: "1"
+      requests:
+        cpu: "0.5"
+    args:
+    - -cpus
+    - "2"
@@ -0,0 +1,26 @@
+apiVersion: v1
+kind: Pod
+
+metadata:
+  labels:
+    test: liveness
+  name: liveness-exec
+spec:
+  containers:
+
+  - name: liveness
+
+    args:
+    - /bin/sh
+    - -c
+    - touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600
+
+    image: k8s.gcr.io/busybox
+
+    livenessProbe:
+      exec:
+        command:
+        - cat
+        - /tmp/healthy
+      initialDelaySeconds: 5
+      periodSeconds: 5
@@ -0,0 +1,21 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  labels:
+    test: liveness
+  name: liveness-http
+spec:
+  containers:
+  - name: liveness
+    args:
+    - /server
+    image: k8s.gcr.io/liveness
+    livenessProbe:
+      httpGet:
+        path: /healthz
+        port: 8080
+        httpHeaders:
+        - name: X-Custom-Header
+          value: Awesome
+      initialDelaySeconds: 3
+      periodSeconds: 3
@@ -0,0 +1,30 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: init-demo
+spec:
+  containers:
+  - name: nginx
+    image: nginx
+    ports:
+    - containerPort: 80
+    volumeMounts:
+    - name: workdir
+      mountPath: /usr/share/nginx/html
+  # These containers are run during pod initialization
+  initContainers:
+  - name: install
+    image: busybox
+    command:
+    - wget
+    - "-O"
+    - "/work-dir/index.html"
+    - http://kubernetes.io
+    volumeMounts:
+    - name: workdir
+      mountPath: "/work-dir"
+  dnsPolicy: Default
+  volumes:
+  - name: workdir
+    emptyDir: {}
+
@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: lifecycle-demo
+spec:
+  containers:
+  - name: lifecycle-demo-container
+    image: nginx
+
+    lifecycle:
+      postStart:
+        exec:
+          command: ["/bin/sh", "-c", "echo Hello from the postStart handler > /usr/share/message"]
+      preStop:
+        exec:
+          command: ["/usr/sbin/nginx","-s","quit"]
+
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: LimitRange
+metadata:
+  name: mem-limit-range
+spec:
+  limits:
+  - default:
+      memory: 512Mi
+    defaultRequest:
+      memory: 256Mi
+    type: Container
@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: memory-demo-2
+spec:
+  containers:
+  - name: memory-demo-2-ctr
+    image: vish/stress
+    resources:
+      requests:
+        memory: 50Mi
+      limits:
+        memory: "100Mi"
+    args:
+    - -mem-total
+    - 250Mi
+    - -mem-alloc-size
+    - 10Mi
+    - -mem-alloc-sleep
+    - 1s
@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: memory-demo-3
+spec:
+  containers:
+  - name: memory-demo-3-ctr
+    image: vish/stress
+    resources:
+      limits:
+        memory: "1000Gi"
+      requests:
+        memory: "1000Gi"
+    args:
+    - -mem-total
+    - 150Mi
+    - -mem-alloc-size
+    - 10Mi
+    - -mem-alloc-sleep
+    - 1s
@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: memory-demo
+spec:
+  containers:
+  - name: memory-demo-ctr
+    image: vish/stress
+    resources:
+      limits:
+        memory: "200Mi"
+      requests:
+        memory: "100Mi"
+    args:
+    - -mem-total
+    - 150Mi
+    - -mem-alloc-size
+    - 10Mi
+    - -mem-alloc-sleep
+    - 1s
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: oir-demo-2
+spec:
+  containers:
+  - name: oir-demo-2-ctr
+    image: nginx
+    resources:
+      requests:
+        pod.alpha.kubernetes.io/opaque-int-resource-dongle: 2
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: oir-demo
+spec:
+  containers:
+  - name: oir-demo-ctr
+    image: nginx
+    resources:
+      requests:
+        pod.alpha.kubernetes.io/opaque-int-resource-dongle: 3
@@ -0,0 +1,138 @@
+---
+title: 给容器分配非透明整型资源
+content_template: templates/task
+---
+
+{{% capture overview %}}
+
+本页展示了如何给容器分配非透明整型资源。
+
+{{< feature-state state="alpha" >}}
+
+{{% /capture %}}
+
+
+{{% capture prerequisites %}}
+
+{{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
+
+在做这个练习之前，请在[给节点配置非透明整型资源](/docs/tasks/administer-cluster/opaque-integer-resource-node/)文档中进行练习，
+该文档介绍了在一个节点上配置dongle资源。
+
+{{% /capture %}}
+
+
+{{% capture steps %}}
+
+## 给Pod分配非透明整型资源
+
+为了请求一个非透明整型资源，需要在容器配置文件中包含`resources:requests`字段。
+非透明整型资源类型前缀是`pod.alpha.kubernetes.io/opaque-int-resource-`。
+
+下面是含有一个容器的Pod的配置文件:
+
+{{< code file="oir-pod.yaml" >}}
+
+在配置文件中，可以看到容器请求了3个dongles资源。
+
+创建Pod:
+
+```shell
+kubectl create -f https://k8s.io/docs/tasks/configure-pod-container/oir-pod.yaml
+```
+
+验证Pod是否正在运行:
+
+```shell
+kubectl get pod oir-demo
+```
+
+查询Pod的状态:
+
+```shell
+kubectl describe pod oir-demo
+```
+
+输出显示了dongle请求:
+
+```yaml
+Requests:
+  pod.alpha.kubernetes.io/opaque-int-resource-dongle: 3
+```
+
+## 尝试创建第二个Pod
+
+下面是含有一个容器的Pod的配置文件。该容器请求了两个dongles资源。
+
+{{< code file="oir-pod-2.yaml" >}}
+
+Kubernetes无法再满足两个dongles的请求，因为第一个Pod已经使用了四个可用dongles中的三个。
+
+尝试创建Pod:
+
+```shell
+kubectl create -f https://k8s.io/docs/tasks/configure-pod-container/oir-pod-2.yaml
+```
+
+查询Pod的状态
+
+```shell
+kubectl describe pod oir-demo-2
+```
+
+输出显示该Pod无法被调度，因为没有节点有两个可用的dongles资源:
+
+
+```
+Conditions:
+  Type    Status
+  PodScheduled  False
+...
+Events:
+  ...
+  ... Warning   FailedScheduling  pod (oir-demo-2) failed to fit in any node
+fit failure summary on nodes : Insufficient pod.alpha.kubernetes.io/opaque-int-resource-dongle (1)
+```
+
+查看Pod的状态:
+
+```shell
+kubectl get pod oir-demo-2
+```
+
+输出显示Pod已创建，但是没有被调度并运行在节点上。
+它的状态为Pending:
+
+```yaml
+NAME         READY     STATUS    RESTARTS   AGE
+oir-demo-2   0/1       Pending   0          6m
+```
+
+## 删除
+
+删除本练习中创建的Pod:
+
+```shell
+kubectl delete pod oir-demo
+```
+
+{{% /capture %}}
+
+{{% capture whatsnext %}}
+
+### 对于应用开发者
+
+* [分配内存资源](/docs/tasks/configure-pod-container/assign-memory-resource/)
+* [分配CPU资源](/docs/tasks/configure-pod-container/assign-cpu-resource/)
+
+### 对于集群管理员
+
+* [给节点配置非透明整型资源](/docs/tasks/administer-cluster/opaque-integer-resource-node/)
+
+{{% /capture %}}
+
+
+
+
+
+
@@ -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: {}
@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx
+  labels:
+    env: test
+spec:
+  containers:
+  - name: nginx
+    image: nginx
+    imagePullPolicy: IfNotPresent
+  nodeSelector:
+    disktype: ssd
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: private-reg
+spec:
+  containers:
+  - name: private-reg-container
+    image: <your-private-image>
+  imagePullSecrets:
+  - name: regsecret
+
@@ -0,0 +1,23 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: test-projected-volume
+spec:
+  containers:
+  - name: test-projected-volume
+    image: busybox
+    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
@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: qos-demo-2
+  namespace: qos-example
+spec:
+  containers:
+  - name: qos-demo-2-ctr
+    image: nginx
+    resources:
+      limits:
+        memory: "200Mi"
+      requests:
+        memory: "100Mi"
@@ -0,0 +1,9 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: qos-demo-3
+  namespace: qos-example
+spec:
+  containers:
+  - name: qos-demo-3-ctr
+    image: nginx
@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: qos-demo-4
+  namespace: qos-example
+spec:
+  containers:
+
+  - name: qos-demo-4-ctr-1
+    image: nginx
+    resources:
+      requests:
+        memory: "200Mi"
+
+  - name: qos-demo-4-ctr-2
+    image: redis
@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: qos-demo
+  namespace: qos-example
+spec:
+  containers:
+  - name: qos-demo-ctr
+    image: nginx
+    resources:
+      limits:
+        memory: "200Mi"
+        cpu: "700m"
+      requests:
+        memory: "200Mi"
+        cpu: "700m"
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ResourceQuota
+metadata:
+  name: compute-resources
+spec:
+  hard:
+    pods: "4"
+    requests.cpu: "1"
+    requests.memory: 1Gi 
+    limits.cpu: "2"
+    limits.memory: 2Gi
@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: security-context-demo-2 
+spec:
+  securityContext:
+    runAsUser: 1000
+  containers:
+  - name: sec-ctx-demo-2
+    image: gcr.io/google-samples/node-hello:1.0
+    securityContext:
+      runAsUser: 2000
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: security-context-demo-3
+spec:
+  containers:
+  - name: sec-ctx-3
+    image: gcr.io/google-samples/node-hello:1.0
+
+
+
@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: security-context-demo-4
+spec:
+  containers:
+  - name: sec-ctx-4
+    image: gcr.io/google-samples/node-hello:1.0
+    securityContext:
+      capabilities:
+        add: ["NET_ADMIN", "SYS_TIME"]
@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: security-context-demo  
+spec:
+  securityContext:
+    runAsUser: 1000
+    fsGroup: 2000
+  volumes:
+  - name: sec-ctx-vol
+    emptyDir: {}
+  containers:
+  - name: sec-ctx-demo
+    image: gcr.io/google-samples/node-hello:1.0
+    volumeMounts:
+    - name: sec-ctx-vol
+      mountPath: /data/demo
@@ -0,0 +1,11 @@
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: task-pv-claim
+spec:
+  storageClassName: manual
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 3Gi
@@ -0,0 +1,22 @@
+kind: Pod
+apiVersion: v1
+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
+
+
@@ -0,0 +1,14 @@
+kind: PersistentVolume
+apiVersion: v1
+metadata:
+  name: task-pv-volume
+  labels:
+    type: local
+spec:
+  storageClassName: manual
+  capacity:
+    storage: 10Gi
+  accessModes:
+    - ReadWriteOnce
+  hostPath:
+    path: "/tmp/data"
@@ -0,0 +1,22 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: goproxy
+  labels:
+    app: goproxy
+spec:
+  containers:
+  - name: goproxy
+    image: k8s.gcr.io/goproxy:0.1
+    ports:
+    - containerPort: 8080
+    readinessProbe:
+      tcpSocket:
+        port: 8080
+      initialDelaySeconds: 5
+      periodSeconds: 10
+    livenessProbe:
+      tcpSocket:
+        port: 8080
+      initialDelaySeconds: 15
+      periodSeconds: 20