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Docker-Node-Mongo-Redis

  1. Cài đặt

    1. Dockerfile

      FROM node:13-alpine
      
      WORKDIR /app
      
      COPY . .
      
      RUN npm install
      
      CMD ["npm", "run", "dev"]
    2. Vì sử dụng docker mongo để lưu trữ dữ liệu, dữ liệu sẽ biến mất sau khi container bị ngừng. Vì vậy cần mount volumes các thư mục chưa dữ liệu.

      • Tạo thư mục .docker/data/db để chứa dữ liệu mongodb
      • Tạo thư mục .docker/data/redis để chứa dữ liệu redis
    3. docker-compose.yml

      version: "3.4"
      
      services:
        app:
          image: learning-docker/docker-node-mongo-redis:v1
          volumes:
            - ./:/app
          environment:
            - DB_HOST=${DB_HOST}
            - DB_NAME=${DB_NAME}
            - REDIS_HOST=${REDIS_HOST}
            - REDIS_PORT=${REDIS_PORT}
            - PORT=${PORT}
          ports:
            - "${PORT}:${PORT}"
          restart: unless-stopped
          depends_on:
            - redis
            - db
      
        db:
          image: mongo
          volumes:
            - .docker/data/db:/data/db
          restart: unless-stopped
      
        redis:
          image: redis:5-alpine
          volumes:
            - .docker/data/redis:/data
          restart: unless-stopped
      • depends_on: khi chạy service app, sẽ chạy service db và redis trước
      • Khi chạy docker-compose up app thì cả service db và redis cũng sẽ chạy
      • Khi chạy docker-compose stop thì service app sẽ tắt trước service db và redis
      • Lưu ý: mặc dù các service db và redis chạy trước khi service app chạy thì cũng không đảm bảo mongo sẵn sàng cho việc kết nối.
    4. Chạy npm install để tạo thư mục node_modules

      • Nếu môi trường ngoài không code npm thì cần chạy một container tạm thời
      $ docker run --rm -v $(pwd):/app -w /app node:13-alpine npm install
    5. Khởi chạy

      $ docker-compose up
  2. Tài liệu tham khảo

    1. https://viblo.asia/p/dockerize-project-nodejs-mongodb-redis-passport-4P856NXW5Y3

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