Mongodb的docker-compose方式安装与配置

网上有不少教程，但照做起来却总是不太顺利，因此，自己做好后写一个

[root@k8s_mongodb /]# mkdir -p /data/mongo/ && cd /data/mongo/ 
[root@k8s_mongodb /]# mkdir -p db/db_a/{data,log}
[root@k8s_mongodb /]# cat << EOF | tee docker-compose.yaml
version: '3.1'
services:
  mongo:
    image: mongo:4.2
    ports:
      - 27017:27017
    restart: always
    tty: true
    environment:
      MONGO_INITDB_ROOT_USERNAME: Admin
      MONGO_INITDB_ROOT_PASSWORD: Admin123Abc123
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - ./db/db_a/data:/data/db
      - ./db/db_a/log:/data/log
    command:
      - /bin/bash
      - -c
      - mongod --port 27017 --bind_ip_all --auth --dbpath "/data/db"   --logpath "/data/log/db.log" 
# 这个地方很有意思，如果写成"command: mongod ....."形式，则mongodb这个容器会不断的重启，并且未提示一些文件不存在之类的错误信息，原因未知

  mongo-express:
    links:
      - mongo
    image: mongo-express
    restart: always
    ports:
      - 8081:8081
    environment:
      ME_CONFIG_OPTIONS_EDITORTHEME: 3024-night
      ME_CONFIG_BASICAUTH_USERNAME: mongoexpress
      ME_CONFIG_BASICAUTH_PASSWORD: mongoexpress
      ME_CONFIG_MONGODB_ADMINUSERNAME: Admin
      ME_CONFIG_MONGODB_ADMINPASSWORD: Admin123Abc123
EOF

[root@k8s_mongodb mongo]# docker ps  # 查看docker是否正常启动
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                      NAMES
74cc67cc3a09        mongo-express       "tini -- /docker-ent…"   9 minutes ago       Up 9 minutes        0.0.0.0:8081->8081/tcp     mongo_mongo-express_1
2c43929ecbda        mongo:4.2           "docker-entrypoint.s…"   9 minutes ago       Up 9 minutes        0.0.0.0:27017->27017/tcp   mongo_mongo_1

# 初始化一下
[root@k8s_mongodb mongo]# docker exec -it  mongo_mongo_1 bash
root@2c43929ecbda:/# sed -i 's\bind\#bind\' /etc/mongod.conf.orig # 开始远程链接，这步可以不做
root@2c43929ecbda:/# mongo
> use adminuse admin
switched to db admin
>db.createUser({
  user: "Admin",
  pwd: "Admin123Abc123",
  roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]
})

......Successfully added user: ...... # 添加用户成功！

> db.auth('Admin','Admin123Abc123')
1  # 认证通过！
# 再添加一个
>db.createUser({
  user: "mongoexpress",
  pwd: "mongoexpress",
  roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]
})
>db.auth('mongoexpress','mongoexpress')
> show dbs
admin   0.000GB
config  0.000GB
local   0.000GB

从浏览器访问mongoexpress验证一下：http://你的ip:8081/ 帐号: mongoexpress/mongoexpress