无法使用kompose从docker-compose转换为kubernetes

Question

我有准备好docker-compose安装程序的项目。 现在我想转到kubernetes。 我使用Kompose工具从docker-compose转换为kubernetes。

例如，这是我的示例docker-compose.yml文件

version: '3'
volumes:
  database_hades_volume:
    external: true
services:
  db:
    image: postgres:latest
    container_name: hades-db
    ports:
      - "5432:5432"
    environment:
      POSTGRES_DB: hades_dev
      POSTGRES_PASSWORD: 1234
    volumes:
    - database_hades_volume:/var/lib/postgresql/data/
    tty: true
    stdin_open: true
  redis:
    container_name: hades-redis
    image: redis:latest
    ports:
      - "6379:6379"
  app:
    container_name: hades-app
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - "4001:4001"
    volumes:
      - ".:/webapp"
    env_file:
      - ./.env.docker_compose-dev
    depends_on:
      - db
      - redis

我已经使用命令docker-compose up成功运行docker-compose up 。 现在，我使用kompose通过使用命令转换为kubernetes：

kompose convert

然后，我使用以下命令运行：

kompose up

这是命令行结果信息：

INFO We are going to create Kubernetes Deployments, Services and PersistentVolumeClaims for your Dockerized application. If you need different kind of resources, use the 'kompose convert' and 'kubectl create -f' commands instead.

INFO Deploying application in "default" namespace
INFO Successfully created Service: app
INFO Successfully created Service: db
INFO Successfully created Service: redis
INFO Successfully created Deployment: app
INFO Successfully created PersistentVolumeClaim: app-claim0 of size 100Mi. If your cluster has dynamic storage provisioning, you don't have to do anything. Otherwise you have to create PersistentVolume to make PVC work
INFO Successfully created Deployment: db
INFO Successfully created PersistentVolumeClaim: database-hades-volume of size 100Mi. If your cluster has dynamic storage provisioning, you don't have to do anything. Otherwise you have to create PersistentVolume to make PVC work
INFO Successfully created Deployment: redis

Your application has been deployed to Kubernetes. You can run 'kubectl get deployment,svc,pods,pvc' for details.

但是，当我尝试通过localhost:4001或10.0.0.180:4001进行测试时，我看到它一直在等待。

我不知道我是否设置错误或错过了一些步骤。 请帮我。

谢谢

Answer 1

您的docker-compose文件包含build密钥，这意味着您拥有用于app服务的源代码/ Dockerfile，到目前为止，

NAME READY STATUS RESTARTS AGE po/app-2119952459-b4jtb 0/1 ErrImagePull 0 24s

状态为ErrImagePull因为群集无法找到任何图像，因此，除了build密钥外，还要提供image密钥，例如。 app: container_name: hades-app build: context: . dockerfile: Dockerfile image: <username>/<imagename>:<tag>

因为，现在kompose具有本地构建和推送支持功能，因此kompose将构建您的映像，推送到dockerhub，然后您的集群可以在部署时从那里拉映像。

命令可以像

kompose up --build=local

我希望这是有道理的