docker 构建mongoDB

1. 使用docker-compose 构建,然后可以在8081端口看到mongo-express

version: '3.1'

services:

  mongo_test:
    image: mongo
    restart: always
    environment:
      MONGO_INITDB_ROOT_USERNAME: root
      MONGO_INITDB_ROOT_PASSWORD: example
    volumes:
      - "/home/hadoop/dockerFile/mongoDb/data:/data/db"
  mongo-express_test:
    image: mongo-express
    restart: always
    ports:
      - 8081:8081
    environment:
      ME_CONFIG_MONGODB_ADMINUSERNAME: root
      ME_CONFIG_MONGODB_ADMINPASSWORD: example
    links:
        - mongo_test:mongo

2. 启动: docker-compose -f stack.yml up -d
   这时查看docker 日志会发现

$ docker logs mongodb_mongo_test_1
Permission denied

3. 修改权限:
   具体看:
   https://blog.csdn.net/rznice/article/details/52170085
   临时修改:
   $ sudo setenforce 0

4. 重新启动:
   docker-compose -f stack.yml up -d
   启动成功

5. 登录docker的container
   docker ps查看docker container 列表

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                        NAMES
a363f438f7e2        mongo               "docker-entrypoint..."   About an hour ago   Up 12 minutes       27017/tcp                                    mongodb_mongo_test_1
bd041fce506c        mongo-express       "tini -- node app"       About an hour ago   Up 10 seconds       0.0.0.0:8081->8081/tcp                       mongodb_mongo-express_test_1

6. 登录mongodb_mongo_test_1 容器

• docker exec -it mongodb_mongo_test_1 bash
• mongo -u root -p example --authenticationDatabase admin
  登录 mongoDB完成.

7. 使用容器登录:

• docker run -it --rm --link mongodb_mongo_test_1:mongo --net mongodb_default mongo mongo --host mongo -u root -p example --authenticationDatabase admin test

总结

其中会遇到两个问题:

1. 挂载目录权限问题
   解决办法 : https://blog.csdn.net/rznice/article/details/52170085

2. 第七步如果不加 --net mongodb_default 会报

/usr/bin/docker-current: Error response from daemon: Cannot link to /mongodb_mongo_test_1, as it does not belong to the default network.

解决办法: https://stackoverflow.com/questions/36489696/cannot-link-to-a-running-container-started-by-docker-compose