Dokcer-使用DigitalOcean组成卷

Question

我的docker构建可以在我的设备上运行。当我上传到digital-ocean服务器并执行"docker-compose up -d“命令时，除了”前端“，所有的容器都启动了。问题出在“卷”上，当我删除它时，一切都正常。如何解决这个问题？我需要这份财产保留下来。

frontend_1 | > test-docker@0.1.0 dev /app/client
frontend_1 | > next dev
frontend_1 |
frontend_1 | sh: 1: next: not found
frontend_1 | npm ERR! code ELIFECYCLE
frontend_1 | npm ERR! syscall spawn
frontend_1 | npm ERR! file sh
frontend_1 | npm ERR! errno ENOENT
frontend_1 | npm ERR! test-docker@0.1.0 dev: `next dev`
frontend_1 | npm ERR! spawn ENOENT
frontend_1 | npm ERR!
frontend_1 | npm ERR! Failed at the test-docker@0.1.0 dev script.
frontend_1 | npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
frontend_1 | npm WARN Local package.json exists, but node_modules missing, did you mean to install?
frontend_1 |
frontend_1 | npm ERR! A complete log of this run can be found in:
frontend_1 | npm ERR! /root/.npm/_logs/2021-01-31T01_14_30_246Z-debug.log

docker-compose.yml：

version: "3.8"

services:
  api:
    restart: always
    ports:
    - 8081:8081
    build:
      context: ./server
      dockerfile: ./Dockerfile
    volumes:
      - ./server:/app/server
    command: npm run dev
    depends_on:
      - mongo
  frontend:
    restart: always
    ports:
      - 3000:3000
    build:
      context: ./client
      dockerfile: ./Dockerfile
    volumes:
      - ./client:/app/client
    depends_on:
      - api
  mongo:
    image: mongo
    expose:
      - 27017
    ports:
      - 27017:27017
    volumes:
      - apiDB:/data/db

volumes:
  apiDB:

version: "3.8"

services:
  api:
    restart: always
    ports:
    - 8081:8081
    build:
      context: ./server
      dockerfile: ./Dockerfile
    volumes:
      - ./server:/app/server
    command: npm run dev
    depends_on:
      - mongo
  frontend:
    restart: always
    ports:
      - 3000:3000
    build:
      context: ./client
      dockerfile: ./Dockerfile
    volumes:
      - ./client:/app/client
    depends_on:
      - api
  mongo:
    image: mongo
    expose:
      - 27017
    ports:
      - 27017:27017
    volumes:
      - apiDB:/data/db

volumes:
  apiDB:

./client/Dockerfile：

FROM node:14

RUN mkdir -p /app/client
WORKDIR /app/client

COPY . /app/client
RUN npm install

CMD [ "npm", "run", "dev"]

Answer 1

我不建议您使用镜像的构建上下文(例如build: context: ./client)与容器的卷挂载(例如volumes: ./client:${SOMETHING})相同，这可能是问题所在。

本地主机上的构建上下文用于构建映像，并将其COPY到映像的/app/client目录。

运行映像时，您会尝试将(以前复制到映像的)目录(/app/client)替换为快捷批处理上现在为空的目录。

如果您的Dockerfile是正确的(并且复制了本地主机的./client )，那么您可以丢弃frontend的volume挂载(因为它已经在/app/client下)。