关于外部访问

    apiVersion: apps/v1 #apiVersion是当前配置格式的版本
    kind: Deployment #kind是要创建的资源类型
    metadata: #metadata是该资源的元数据，name是必须的元数据项
    name: flaskapp-1
    spec:
    selector: # .spec.selector 必须匹配 .spec.template.metadata.labels，否则它将被API拒绝。如果 .spec.selector 没有被指定， .spec.selector.matchLabels 默认是 .spec.template.metadata.labels
    matchLabels:
    run: flaskapp-1
    replicas: 1
    template: #定义Pod
    metadata: #metadata定义Pod的元数据，至少要顶一个label，label的key和value可以任意指定
    labels:
    run: flaskapp-1
    spec:
    containers:
    - name: flaskapp-1
    image: jcdemo/flaskapp #image指定镜像的地址
    ports:
    - containerPort: 5000 #暴露给service的地址

    apiVersion: v1
    kind: Service
    metadata:
    name: flaska
    labels:
    run: flaskapp-1
    spec:
    type: NodePort # 暴露service的三种方式 NodePort，LoadBalancer 和 Ingress
    ports: #将Service 的 30005 端口映射到 Pod 的 5000 端口，使用 TCP 协议
    - port: 5000
    name: flaskapp-port
    targetPort: 5000
    protocol: TCP
    nodePort: 30005
    selector: # selector 指明挑选那些 label 为 run: xx 的 Pod 作为 Service 的后端
    run: flaskapp-1

    关于滚动更新

    apiVersion: apps/v1
    kind: Deployment
    metadata:
    name: nginx-deployment
    labels:
    app: nginx
    spec:
    replicas: 3 #选择副本数量
    minReadySeconds: 10 # 从容器启动到应用正常提供服务
    strategy: # k8s 默认的 strategy 就是 RollingUpdate
    type: RollingUpdate
    rollingUpdate:
    maxSurge: 1 # 更新时允许最大激增的容器数，默认 replicas 的 1/4 向上取整
    maxUnavailable: 0 # 更新时允许最大 unavailable 容器数，默认 replicas 的 1/4 向下取整

    selector: #选择要管理的pod
    matchLabels: # matchLabels用于定义一组Label，与直接写在Selector中作用相同
    app: nginx
    template:
    metadata:
    labels:
    app: nginx
    spec:
    containers:
    - name: nginx
    image: nginx:1.7.9
    ports:
    - containerPort: 80

    关于存活探针

    apiVersion: v1
    kind: Pod
    metadata:
    labels:
    test: liveness
    name: liveness-exec
    spec:
    containers:

    - name: liveness
    args: #启动参数
    - /bin/sh
    - -c
    - touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600 #创建文件后休眠然后删除文件后继续休眠
    image: busybox
    livenessProbe: #绑定liveness在容器下
    exec:
    command:
    - cat
    - /tmp/healthy #检查文件存在，如存在返回值为0
    initialDelaySeconds: 5 #检测延迟
    periodSeconds: 5 #重试循环时间

    apiVersion: v1
    kind: Pod
    metadata:
    labels:
    test: liveness
    name: liveness-http
    spec:
    containers:
    - name: liveness
    image: mirrorgooglecontainers/liveness
    args:
    - /server
    livenessProbe:
    httpGet:
    path: /healthz
    port: 8080
    httpHeaders:
    - name: X-Custom-Header
    value: Awesome
    initialDelaySeconds: 3
    periodSeconds: 3

    apiVersion: v1
    kind: Pod
    metadata:
    name: cm-test-pod
    spec:
    containers:
    - name: cm-container
    image: busybox
    args: [“/bin/sh”, “-c”, “env”]
    env:
    - name: special-env #设置key
    valueFrom:
    configMapKeyRef:
    name: specialconfig-2 #选择configmap
    key: key1 #导入value
    envFrom: #导入的env环境变量
    - configMapRef:
    name: specialconfig-2 #选择configmap
    restartPolicy: Never #重启策略

    apiVersion: v1
    kind: Pod
    metadata:
    name: cmpod2
    spec:
    containers:
    - name: cmpod2
    image: busybox
    args: [ “/bin/sh”, “-c”, “sleep 3000” ]
    volumeMounts:
    - name: db #选择volume
    mountPath: “/etc/db” #选择目录
    readOnly: true
    volumes: #选择configmap以volume方式挂载
    - name: db
    configMap:
    name: specialconfig-2

    apiVersion: v1
    kind: Pod
    metadata:
    name: spod2
    spec:
    containers:
    - image: busybox
    name: spod2
    args: [“/bin/sh”,”-c”,”sleep 3000”]
    volumeMounts:
    - name: secrets #选择volume
    mountPath: “/etc/secret” #选择目录
    readOnly: true
    volumes:
    - name: secrets
    secret:
    secretName: mysecret #选择secrets
    items:
    - key: password #选择key
    path: my-group/my-passwd #设定目录

    apiVersion: v1
    kind: Pod
    metadata:
    name: em
    spec:
    containers:
    - image: ubuntu
    name: test-container
    volumeMounts: #挂载emptyDir
    - mountPath: /cache #挂载目录
    name: cache-volume #数据卷名称
    args:
    - /bin/sh
    - -c
    - sleep 30000
    volumes: #创建数据卷
    - name: cache-volume
    emptyDir: {}

    apiVersion: v1
    kind: PersistentVolume #选择PV
    metadata:
    name: mypv
    spec:
    capacity: #设置容量
    storage: 1Gi
    accessModes: #读写规则
    - ReadWriteOnce
    persistentVolumeReclaimPolicy: Recycle #回收策略
    ( storageClassName: value #设置存储级别供给statefulset调用）
    nfs: #pv格式
    path: /nfs/pv1 #NFS服务器上提供的路径
    server: 192.168.8.202 #NFS服务器地址

    1.                 <br />apiVersion: v1<br />kind: PersistentVolumeClaim<br />metadata:<br /> name: mypvc<br />spec:<br /> accessModes:<br />   - ReadWriteOnce<br /> volumeName: mypv                   #选择PV<br /> resources:<br />   requests:<br />     storage: 1Gi