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如果容器不侦听端口,如何创建kubernetes部署?

kubernetes deployment service

SpaceTrucker · 技术社区 · 6 年前

我想将该容器连同JMS代理和带有restapi的服务器一起部署到kubernetes。因此,我目前为后端处理应用程序准备了以下kubernetes API对象:

---
  kind: "Deployment"
  apiVersion: "extensions/v1beta1"
  metadata: 
    name: "foo-processing-module"
    namespace: "foo-4"
    labels: 
      foo.version: "0.0.1-SNAPSHOT"
      k8s-app: "foo-processing-module"
    annotations: 
      deployment.kubernetes.io/revision: "1"
      description: "Processing Modules App for foo"
  spec: 
    replicas: 1
    selector: 
      matchLabels: 
        foo.version: "0.0.1-SNAPSHOT"
        k8s-app: "foo-processing-module"
    template: 
      metadata: 
        name: "foo-processing-module"
        labels: 
          foo.version: "0.0.1-SNAPSHOT"
          k8s-app: "foo-processing-module"
        annotations: 
          description: "Processing Modules App for foo"
      spec: 
        containers: 
          - 
            name: "foo-processing-module"
            image: "foo/foo-processing-module-docker:0.0.1-SNAPSHOT"
            resources: {}
            terminationMessagePath: "/dev/termination-log"
            terminationMessagePolicy: "File"
            imagePullPolicy: "IfNotPresent"
            securityContext: 
              privileged: false
        restartPolicy: "Always"
        terminationGracePeriodSeconds: 30
        dnsPolicy: "ClusterFirst"
        securityContext: {}
        schedulerName: "default-scheduler"
    strategy: 
      type: "RollingUpdate"
      rollingUpdate: 
        maxUnavailable: "25%"
        maxSurge: "25%"
    revisionHistoryLimit: 10
    progressDeadlineSeconds: 600
---
  kind: "Service"
  apiVersion: "v1"
  metadata: 
    name: "foo-processing-module"
    namespace: "foo-4"
    labels: 
      foo.version: "0.0.1-SNAPSHOT"
      k8s-app: "foo-processing-module"
    annotations: 
      description: "Processing Modules App for foo"
  spec: 
    selector: 
      foo.version: "0.0.1-SNAPSHOT"
      k8s-app: "foo-processing-module"
    type: "LoadBalancer"
    sessionAffinity: "None"
    externalTrafficPolicy: "Cluster"

kubectl create 我在创建上述API对象时收到以下错误消息:

Error from server (Invalid): error when creating "foo.yml": Service "foo-processing-module" is invalid: spec.ports: Required value
error converting YAML to JSON: yaml: line 22: did not find expected <document start>

我要怎么做才能解决这个错误?是库伯内特斯 Service

2 回复 | 直到 6 年前

Michael Hausenblas 6 年前

只需移除整个 Service 对象。既然你有一个不需要通过网络交流的应用程序,你就不需要服务了。可以将服务看作是一种专门的负载平衡器,它位于一个(HTTP?)你的豆荚暴露了。既然你没有那个API,你就不需要它了。这个 Deployment 对工人的实际监督,也就是说,不管发生什么事 foo/foo-processing-module-docker:0.0.1-SNAPSHOT

另外,始终使用 kubectl apply create --record 选项,以便您可以访问历史记录。

Matt slashingweapon 6 年前

后端处理应用程序不需要服务,因为它不接收任何传入连接。

另外,在定义负载平衡器服务时,需要指定端口。