{"id":718,"date":"2025-03-05T10:22:50","date_gmt":"2025-03-05T02:22:50","guid":{"rendered":"http:\/\/www.xinsk.cn\/?p=718"},"modified":"2025-03-11T16:00:30","modified_gmt":"2025-03-11T08:00:30","slug":"k8s%e4%b8%adyaml%e6%96%87%e4%bb%b6%e7%9a%84%e8%ae%be%e7%bd%ae%e4%b8%8e%e6%84%8f%e4%b9%89%ef%bc%88%e4%bb%a5mysql%e4%b8%ba%e4%be%8b%ef%bc%89","status":"publish","type":"post","link":"http:\/\/www.xinsk.cn\/?p=718","title":{"rendered":"Kubernetes\uff08K8S\uff09\u4e2d\u901a\u8fc7YAML\u6765\u914d\u7f6e\u5404\u4e2a\u8d44\u6e90\uff08\u793a\u4f8b+\u6848\u4f8b\uff09"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u5b9a\u4e49\uff1aYAML\uff08YAML Ain&#8217;t Markup Language\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u914d\u7f6e\u6587\u4ef6\u7684\u6570\u636e\u5e8f\u5217\u5316\u683c\u5f0f\uff0c\u5e38\u7528\u4e8eKubernetes\uff08K8S\uff09\u4e2d\u7684\u8d44\u6e90\u5b9a\u4e49\u3002<\/mark><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">K8S\u4e2d\u6587\u6587\u6863\uff1a<\/mark><\/strong><a href=\"https:\/\/www.kubernetes.org.cn\/kubernetes-pod\"><\/a><a href=\"https:\/\/www.kubernetes.org.cn\/k8s\">Kubernetes\uff08k8s\uff09\u4e2d\u6587\u6587\u6863 Kubernetes\u6982\u8ff0_Kubernetes\u4e2d\u6587\u793e\u533a<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Pod<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09Pod\u662fKubernetes\u4e2d\u6700\u5c0f\u7684\u90e8\u7f72\u5355\u5143\uff0c\u901a\u5e38\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a\u5bb9\u5668\u3002<br>\uff082\uff09<code>Pod<\/code>\u5fc5\u987b\u5b9a\u4e49<code>labels<\/code>\u6807\u7b7e\uff0c\u624d\u80fd\u548c<code>Deployment<\/code>\uff0c<code>Service<\/code>\u7b49\u8d44\u6e90\u8fdb\u884c\u5173\u8054\u3002<code>labels<\/code>\u662fKubernetes\u4e2d\u7528\u4e8e\u6807\u8bc6\u548c\u9009\u62e9\u8d44\u6e90\u7684\u5173\u952e\u673a\u5236\uff0c\u6bcf\u4e2a\u5bf9\u8c61\u53ef\u4ee5\u6709\u591a\u4e2a\u6807\u7b7e\uff0c\u4f46\u662fkey\u503c\u5fc5\u987b\u552f\u4e00\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: Pod\nmetadata:\n  name: my-pod\n  labels:\n    app: my-app\nspec:\n  containers:\n  - name: my-container\n    image: nginx\n    ports:\n    - containerPort: 80\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. Service<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Service\u7528\u4e8e\u5b9a\u4e49\u4e00\u7ec4Pod\u7684\u8bbf\u95ee\u65b9\u5f0f\uff0c\u901a\u5e38\u7528\u4e8e\u66b4\u9732Pod\u7684\u7f51\u7edc\u670d\u52a1\u3002\u60f3\u8981\u88ab\u5916\u90e8\u8bbf\u95ee\u5c31\u9700\u8981\u8bbe\u5b9aService\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: Service\nmetadata:\n  name: my-service\nspec:\n  selector:\n    app: my-app\n  ports:\n  - protocol: TCP\n    port: 80\n    targetPort: 8080\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. Deployment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Deployment\u7528\u4e8e\u5b9a\u4e49Pod\u7684\u90e8\u7f72\u7b56\u7565\uff0c\u652f\u6301\u6eda\u52a8\u66f4\u65b0\u3001\u56de\u6eda\u7b49\u64cd\u4f5c\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u4e0d\u4f1a\u76f4\u63a5\u7f16\u5199Pod\uff0c\u800c\u662f\u901a\u8fc7\u5b9a\u4e49Deployment\u6765\u751f\u6210Pod\uff0c\u4fbf\u4e8e\u6211\u4eec\u7ba1\u7406\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: apps\/v1\nkind: Deployment\nmetadata:\n  name: my-deployment\nspec:\n  replicas: 3\n  selector:\n    matchLabels:\n      app: my-app\n  template:\n    metadata:\n      labels:\n        app: my-app\n    spec:\n      containers:\n      - name: my-container\n        image: nginx\n        ports:\n        - containerPort: 80\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">4. ConfigMap<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09ConfigMap\u7528\u4e8e\u5b58\u50a8\u914d\u7f6e\u6570\u636e\uff0c\u53ef\u4ee5\u5728Pod\u4e2d\u4f5c\u4e3a\u73af\u5883\u53d8\u91cf\u6216\u914d\u7f6e\u6587\u4ef6\u4f7f\u7528\u3002<br>\uff082\uff09ConfigMap\u5fc5\u987b\u5728Pod\u5f15\u7528\u5b83\u4e4b\u524d\u521b\u5efa<br>\uff083\uff09Pod\u53ea\u80fd\u4f7f\u7528\u540c\u4e00\u4e2a\u547d\u540d\u7a7a\u95f4\u5185\u7684ConfigMap<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: my-config\ndata:\n  config.properties: |\n    key1=value1\n    key2=value2\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">5. Secret<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Secret\u7528\u4e8e\u5b58\u50a8\u654f\u611f\u4fe1\u606f\uff0c\u5982\u5bc6\u7801\u3001\u5bc6\u94a5\u7b49\u3002\u6b64\u5904\u53ea\u662f\u5c06\u660e\u6587\u53d8\u4e3a\u4e86base64\u7f16\u7801\u800c\u5df2\uff0c\u6240\u4ee5\u5b89\u5168\u6027\u6709\u9650\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: Secret\nmetadata:\n  name: my-secret\ntype: Opaque\ndata:\n  username: dXNlcm5hbWU=  # base64\u7f16\u7801\u7684\u5b57\u7b26\u4e32\n  password: cGFzc3dvcmQ=  # base64\u7f16\u7801\u7684\u5b57\u7b26\u4e32\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">6. PersistentVolume (PV) \u548c PersistentVolumeClaim (PVC)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PV\uff08\u4f9b\u7ed9\uff09\uff1a\u76f8\u5f53\u4e8e\u5728\u78c1\u76d8\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u5b58\u50a8\u8d44\u6e90\uff0c\u6b64\u5b58\u50a8\u8d44\u6e90\u53ef\u4ee5\u88abK8S\u81ea\u52a8\u5206\u914d\u7ed9\u76f8\u5339\u914d\u7684PVC\uff0c\u4e5f\u53ef\u4ee5\u81ea\u5b9a\u4e49\u7ed9\u54ea\u4e00\u4e2aPVC\uff08\u901a\u8fc7storageClassName\u547d\u540d\u4e00\u81f4\uff0c\u53ef\u4ee5\u5c06PV\u548cPVC\u5bf9\u5e94\u8d77\u6765\uff09\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: PersistentVolume\nmetadata:\n  name: my-pv\nspec:\n  capacity:\n    storage: 10Gi\n  accessModes:\n    - ReadWriteOnce\n  storageClassName: slow\n  hostPath:\n    path: \/mnt\/data<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">PVC\uff08\u9700\u6c42\uff09\uff1a\u76f8\u5f53\u4e8e\u7528\u6237\u5b9a\u4e49\u9700\u8981\u7684\u5b58\u50a8\u8d44\u6e90\uff0c\u8bbf\u95ee\u6a21\u5f0f\u7b49\u5185\u5bb9\uff0c\u53ef\u4ee5\u901a\u8fc7storageClassName\u6765\u548c\u5bf9\u5e94PV\u76f8\u5339\u914d\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: PersistentVolumeClaim\nmetadata:\n  name: my-pvc\nspec:\n  accessModes:\n    - ReadWriteOnce\n  resources:\n    requests:\n      storage: 10Gi\n  storageClassName: slow<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5907\u6ce8\uff1a\u5982\u679c\u96c6\u7fa4\u53ef\u4ee5\u52a8\u6001\u5339\u914d\u8d44\u6e90\uff0c\u90a3\u5c31\u53ea\u7f16\u8f91PVC\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7. Namespace<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uff081\uff09Namespace\u7528\u4e8e\u5c06Kubernetes\u8d44\u6e90\u5212\u5206\u4e3a\u4e0d\u540c\u7684\u903b\u8f91\u7ec4\u3002<br>\uff082\uff09<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u5220\u9664<\/mark>\u4e00\u4e2anamespace<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">\u4f1a\u81ea\u52a8\u5220\u9664\u6240\u6709<\/mark>\u5c5e\u4e8e\u8be5namespace\u7684\u8d44\u6e90\uff08PV\u4e0d\u4e00\u5b9a\u4f1a\u88ab\u56de\u6536\uff0c\u4f8b\u5982PV\u7684&nbsp; persistentVolumeReclaimPolicy: Retain \u65f6\uff0cPV\u5728\u88ab\u91ca\u653e\u540e\u4e0d\u4f1a\u81ea\u52a8\u56de\u6536\u6216\u5220\u9664\u3002persistentVolumeReclaimPolicy: Delete \u65f6\uff0cPV\u5728\u88ab\u91ca\u653e\u540e\u4f1a\u5220\u9664\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: Namespace\nmetadata:\n  name: my-namespace\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">8. Ingress<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ingress\u7528\u4e8e\u7ba1\u7406\u5916\u90e8\u8bbf\u95eeKubernetes\u670d\u52a1\u7684HTTP\u548cHTTPS\u8def\u7531\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: networking.k8s.io\/v1\nkind: Ingress\nmetadata:\n  name: my-ingress\n  annotations:\n    nginx.ingress.kubernetes.io\/rewrite-target: \/\nspec:\n  rules:\n  - host: my-app.example.com\n    http:\n      paths:\n      - path: \/\n        pathType: Prefix\n        backend:\n          service:\n            name: my-service\n            port:\n              number: 80\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">9. HorizontalPodAutoscaler (HPA)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HPA\u7528\u4e8e\u6839\u636e\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u81ea\u52a8\u6269\u5c55Pod\u7684\u6570\u91cf\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: autoscaling\/v2beta2\nkind: HorizontalPodAutoscaler\nmetadata:\n  name: my-hpa\nspec:\n  scaleTargetRef:\n    apiVersion: apps\/v1\n    kind: Deployment\n    name: my-deployment\n  minReplicas: 1\n  maxReplicas: 10\n  metrics:\n  - type: Resource\n    resource:\n      name: cpu\n      target:\n        type: Utilization\n        averageUtilization: 50\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">10. Job<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Job\u7528\u4e8e\u8fd0\u884c\u4e00\u6b21\u6027\u4efb\u52a1\uff0c\u4efb\u52a1\u5b8c\u6210\u540ePod\u4f1a\u81ea\u52a8\u7ec8\u6b62\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: batch\/v1\nkind: Job\nmetadata:\n  name: my-job\nspec:\n  template:\n    spec:\n      containers:\n      - name: my-container\n        image: busybox\n        command: &#91;\"echo\", \"Hello, Kubernetes!\"]\n      restartPolicy: Never\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">11. CronJob<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CronJob\u7528\u4e8e\u5b9a\u671f\u8fd0\u884c\u4efb\u52a1\uff0c\u7c7b\u4f3c\u4e8eLinux\u7684cron\u4f5c\u4e1a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: batch\/v1beta1\nkind: CronJob\nmetadata:\n  name: my-cronjob\nspec:\n  schedule: \"*\/5 * * * *\"\n  jobTemplate:\n    spec:\n      template:\n        spec:\n          containers:\n          - name: my-container\n            image: busybox\n            command: &#91;\"echo\", \"Hello, Kubernetes!\"]\n          restartPolicy: OnFailure\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e9bYAML\u914d\u7f6e\u6587\u4ef6\u5b9a\u4e49\u4e86Kubernetes\u4e2d\u5404\u79cd\u8d44\u6e90\u7684\u671f\u671b\u72b6\u6001\u3002\u901a\u8fc7<code>kubectl apply -f &lt;filename&gt;.yaml<\/code>\u547d\u4ee4\u53ef\u4ee5\u5c06\u8fd9\u4e9b\u914d\u7f6e\u5e94\u7528\u5230Kubernetes\u96c6\u7fa4\u4e2d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">&#8212;&#8212;MySQL\u6848\u4f8b&#8212;&#8212;<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1.&nbsp;<strong>Namespace\uff08\u53ef\u9009\uff09<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u5e0c\u671b\u5c06MySQL\u5e94\u7528\u90e8\u7f72\u5230\u4e00\u4e2a\u7279\u5b9a\u7684\u547d\u540d\u7a7a\u95f4\u4e2d\uff0c\u53ef\u4ee5\u5148\u521b\u5efa\u4e00\u4e2aNamespace\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: Namespace\nmetadata:\n  name: mysql-9\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2.&nbsp;Yaml\u6587\u4ef6<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>apiVersion: v1\nkind: Secret\nmetadata:\n  name: mysql-pass\n  namespace: mysql-9\ntype: Opaque\ndata:\n  root_password: azgzbXlzcWw5\n\n---\n\napiVersion: v1\nkind: PersistentVolume\nmetadata:\n  # PV\u662f\u76f4\u63a5\u6302\u8f7d\u5230\u78c1\u76d8\u4e0a\u7684\uff0c\u6ca1\u6709\u547d\u540d\u7a7a\u95f4\u4e00\u8bf4\uff0c\u6240\u4ee5\u4e0d\u8bbe\u5b9anamespace\n  name: mysql-pv-volume\nspec:\n  capacity:\n    storage: 20Gi\n  volumeMode: Filesystem\n  accessModes:\n    - ReadWriteOnce\n  persistentVolumeReclaimPolicy: Retain\n  storageClassName: slow\n  hostPath:\n    path: \/var\/lib\/mysql\n\n---\n\napiVersion: v1\nkind: PersistentVolumeClaim\nmetadata:\n  name: mysql-pv-claim\n  namespace: mysql-9\nspec:\n  resources:\n    requests:\n      storage: 20Gi\n  storageClassName: slow\n  volumeMode: Filesystem\n  accessModes:\n    - ReadWriteOnce\n\n---\n\napiVersion: apps\/v1\nkind: Deployment\nmetadata:\n  name: mysql-deployment\n  namespace: mysql-9\nspec:\n  replicas: 1\n  selector:\n    matchLabels:\n      app: mysql\n  template:\n    metadata:\n      labels:\n        app: mysql\n    spec:\n      containers:\n      - name: mysql\n        image: mysql:9\n        env:\n        - name: MYSQL_ROOT_PASSWORD\n          valueFrom:\n            secretKeyRef:\n              name: mysql-pass\n              key: root_password\n        # \u8bbe\u7f6e\u7684\u662f\u5141\u8bb8root\u8d26\u6237\u8fdc\u7aef\u767b\u5f55\n        - name: MYSQL_ROOT_HOST\n          value: \"%\"\n        ports:\n        - containerPort: 3306\n        volumeMounts:\n        # \u5b9a\u4e49\u6302\u8f7d\u5377\u7684\u6587\u4ef6\u540d\u79f0\u4ee5\u53ca\u6587\u4ef6\u6240\u5904\u7684\u8def\u5f84\uff08\u6b64\u8def\u5f84\u8981\u4e0ePV\u8bbe\u7f6e\u7684\u4fdd\u6301\u4e00\u81f4\uff09\n        - name: mysql-persistent-storage\n          mountPath: \/var\/lib\/mysql\n        # \u5b9a\u4e49Pod\u6240\u5360\u7528\u7684CPU\u548c\u5185\u5b58\u8d44\u6e90\u7684\u4e0a\u9650\u503c\u548c\u4e0b\u9650\u503c\n        resources:\n          # \u5b9a\u4e49\u4e86\u5bb9\u5668\u53ef\u4ee5\u4f7f\u7528\u7684\u6700\u5927\u8d44\u6e90\u91cf\n          limits:\n            cpu: \"2\" # 1 -&gt; 1\u6838 -&gt; 1000M\n            memory: \"4Gi\"\n          # \u5b9a\u4e49\u4e86\u5bb9\u5668\u8fd0\u884c\u6240\u5fc5\u987b\u7684\u6700\u4f4e\u8d44\u6e90\u9700\u6c42\n          requests:\n            cpu: \"1\"\n            memory: \"4Gi\"\n      volumes:\n      # \u5b9a\u4e49\u6302\u8f7d\u5377\uff08\u5f15\u7528PVC\uff09\n      - name: mysql-persistent-storage\n        persistentVolumeClaim:\n          claimName: mysql-pv-claim\n\n---\n\napiVersion: v1\nkind: Service\nmetadata:\n  name: mysql-service\n  namespace: mysql-9\nspec:\n  type: NodePort\n  ports:\n  - port: 3306\n    targetPort: 3306\n    nodePort: 30000\n  selector:\n    app: mysql\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5907\u6ce8\uff1a\u9700\u8981\u786e\u4fdd\u96c6\u7fa4\u7684Master\u8282\u70b9\u7684\u9632\u706b\u5899\u6709\u5f00\u542f\u5bf9\u5e94\u7684\u7aef\u53e3\uff1b\u8bbf\u95ee\u65f6\u4f7f\u7528\u7684\u662fMaster\u7684IP+Service\u8bbe\u7f6e\u7684nodePort\u7aef\u53e3<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b9a\u4e49\uff1aYAML\uff08YAML Ain&#8217;t Markup Language\uff09\u662f\u4e00\u79cd\u7528\u4e8e\u914d\u7f6e\u6587\u4ef6\u7684\u6570\u636e\u5e8f\u5217 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":747,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-718","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-other"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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