Question

我是Docker的新手，并使用docker-compose-up命令运行Saleor实例，该命令构建了多个容器。每当我对任何文件夹中的源代码进行更改时，docker都会开始重建所有映像，并占用大量时间和系统资源。现在，我读到可以通过装入卷或其他东西来克服此问题，但是我不确定如何实现它。这是我的docker-compose.yml的样子。

version: '2'

services:
  api:
    ports:
      - 8000:8000
    build:
      context: ./saleor
      dockerfile: ./Dockerfile
      args:
        STATIC_URL: '/static/'
    restart: unless-stopped
    networks:
      - saleor-backend-tier
    depends_on:
      - db
      - redis
      - jaeger
    volumes:
      - ./saleor/saleor/:/app/saleor:Z
      - ./saleor/templates/:/app/templates:Z
      - ./saleor/tests/:/app/tests
      # shared volume between worker and api for media
      - saleor-media:/app/media
    command: python manage.py runserver 0.0.0.0:8000
    env_file: common.env
    environment:
      - JAEGER_AGENT_HOST=jaeger
      - STOREFRONT_URL=http://localhost:3000/
      - DASHBOARD_URL=http://localhost:9000/

  storefront:
    build:
      context: ./saleor-storefront
      dockerfile: ./Dockerfile.dev
    ports:
      - 3000:3000
    restart: unless-stopped
    volumes:
      - ./saleor-storefront/:/app:cached
      - /app/node_modules/
    command: npm start -- --host 0.0.0.0

  dashboard:
    build:
      context: ./saleor-dashboard
      dockerfile: ./Dockerfile.dev
    ports:
      - 9000:9000
    restart: unless-stopped
    volumes:
      - ./saleor-dashboard/:/app:cached
      - /app/node_modules/
    command: npm start -- --host 0.0.0.0

  db:
    image: library/postgres:11.1-alpine
    ports:
      - 5432:5432
    restart: unless-stopped
    networks:
      - saleor-backend-tier
    volumes:
      - saleor-db:/var/lib/postgresql
    environment:
      - POSTGRES_USER=saleor
      - POSTGRES_PASSWORD=saleor

  redis:
    image: library/redis:5.0-alpine
    ports:
      - 6379:6379
    restart: unless-stopped
    networks:
      - saleor-backend-tier
    volumes:
      - saleor-redis:/data

  worker:
    build:
      context: ./saleor
      dockerfile: ./Dockerfile
      args:
        STATIC_URL: '/static/'
    command: celery -A saleor worker --app=saleor.celeryconf:app --loglevel=info
    restart: unless-stopped
    networks:
      - saleor-backend-tier
    env_file: common.env
    depends_on:
      - redis
      - mailhog
    volumes:
      - ./saleor/saleor/:/app/saleor:Z,cached
      - ./saleor/templates/:/app/templates:Z,cached
      # shared volume between worker and api for media
      - saleor-media:/app/media
    environment:
      - EMAIL_URL=smtp://mailhog:1025

  jaeger:
    image: jaegertracing/all-in-one
    ports:
      - "5775:5775/udp"
      - "6831:6831/udp"
      - "6832:6832/udp"
      - "5778:5778"
      - "16686:16686"
      - "14268:14268"
      - "9411:9411"
    restart: unless-stopped
    networks:
      - saleor-backend-tier

  mailhog:
    image: mailhog/mailhog
    ports: 
      - 1025:1025 # smtp server
      - 8025:8025 # web ui. Visit http://localhost:8025/ to check emails
    restart: unless-stopped
    networks:
      - saleor-backend-tier

volumes:
  saleor-db:
    driver: local
  saleor-redis:
    driver: local
  saleor-media:

networks:
  saleor-backend-tier:
    driver: bridge

应进行哪些更改以避免重新编译所有容器？

这是店面容器中的Dockerfile之一。

FROM node:10 as builder
WORKDIR /app
COPY package*.json ./
RUN npm install
COPY . .
ARG API_URI
ENV API_URI ${API_URI:-http://localhost:8000/graphql/}
RUN API_URI=${API_URI} npm run build

FROM nginx:stable
WORKDIR /app
COPY ./nginx/default.conf /etc/nginx/conf.d/default.conf
COPY --from=builder /app/dist/ /app/

Answer 1

您选择要构建的服务，然后docker-compose up仅重新创建已更改的容器。

docker-compose build <service1>  // build only service1
docker-compose up -d             // update only the service which has changed

如何在不做任何更改的情况下使用Docker Compose而不重建映像？

1 个答案: