docker compose 中 mongodb 的卷配置

Question

我嘗試了很長時間將mongo db掛載到我的本地存儲，但是如果我想同時初始化db，代碼注釋（#-./database:/data/db）無法成功掛載。 然后我嘗試創建一個卷，如現在所示（單獨創建一個卷部分）。 它有效。 你知道其中的區別嗎？為什么？ 你能指出來嗎？ 提前致謝。

修改前

version: '3.5'

services:

  mongodb:
    image: mongo
    container_name: mongodb
    restart: unless-stopped
    ports:
      - 27017:27017
    environment:
      - MONGO_INITDB_ROOT_USERNAME=root
      - MONGO_INITDB_ROOT_PASSWORD=root
    volumes:
      - ./docker-entrypoint-initdb.d/mongo-init.js:/docker-entrypoint-initdb.d/mongo-init.js:ro
      - ./database:/data/db    # not work 
  mongo-express:
    image: mongo-express
    container_name: mongo-express
    restart: unless-stopped
    ports:
      - 8081:8081
    environment:
      - ME_CONFIG_MONGODB_ADMINUSERNAME=root
      - ME_CONFIG_MONGODB_ADMINPASSWORD=root
      - ME_CONFIG_MONGODB_SERVER=mongodb
      - ME_CONFIG_MONGODB_ENABLE_ADMIN=true
      - ME_CONFIG_BASICAUTH_USERNAME=xhp
      - ME_CONFIG_BASICAUTH_PASSWORD=xhp
    depends_on:
      - mongodb

修改后

version: '3.5'

services:

  mongodb:
    image: mongo
    container_name: mongodb
    restart: unless-stopped
    ports:
      - 27017:27017
    environment:
      - MONGO_INITDB_ROOT_USERNAME=root
      - MONGO_INITDB_ROOT_PASSWORD=root
    volumes:
      - ./docker-entrypoint-initdb.d/mongo-init.js:/docker-entrypoint-initdb.d/mongo-init.js:ro
      - mongodb:/data/db
      # - ./database:/data/db     not work 
  mongo-express:
    image: mongo-express
    container_name: mongo-express
    restart: unless-stopped
    ports:
      - 8081:8081
    environment:
      - ME_CONFIG_MONGODB_ADMINUSERNAME=root
      - ME_CONFIG_MONGODB_ADMINPASSWORD=root
      - ME_CONFIG_MONGODB_SERVER=mongodb
      - ME_CONFIG_MONGODB_ENABLE_ADMIN=true
      - ME_CONFIG_BASICAUTH_USERNAME=xhp
      - ME_CONFIG_BASICAUTH_PASSWORD=xhp
    depends_on:
      - mongodb
volumes:
  mongodb:

Answer 1

差異導致不同的本地目錄。 我的問題應該通過刪除舊卷並更新來解決。