docker搭建mongodb集群

#创建容器间公用的网络
docker network create --subnet=10.1.1.0/24 mongodb0
#查看docker 下边的所有网络情况
docker network ls
#查看某一个网络的具体情况
docker network inspect ef6 【容器id】
#创建本地的 挂载 路径
mkdir -p /adcs/mongodb/configsvr
mkdir -p /adcs/mongodb/shard1
mkdir -p /adcs/mongodb/shard2
mkdir -p /adcs/mongodb/shard3
mkdir -p /adcs/mongodb/mongos
docker run -d --name=cfg_1 --network=mongodb0 --ip=10.1.1.2 -v /adcs/mongodb/configsvr:/etc/mongodb mongo:4.0.0 -f /etc/mongodb/mongod.conf
docker run -d --name=cfg_2 --network=mongodb0 --ip=10.1.1.3 -v /adcs/mongodb/configsvr:/etc/mongodb mongo:4.0.0 -f /etc/mongodb/mongod.conf
docker run -d --name=cfg_3 --network=mongodb0 --ip=10.1.1.4 -v /adcs/mongodb/configsvr:/etc/mongodb mongo:4.0.0 -f /etc/mongodb/mongod.conf
docker run -p 60301:27017 -v /adcs/mongodb/data/db:/data/db --name singal_mongodb -d mongo
在上面的命令中，几个命令参数的详细解释如下：
-p 指定容器的端口映射，mongodb 默认端口为 27017
-v 为设置容器的挂载目录，这里是将即本机中的目录挂载到容器中的/data/db中，作为 mongodb 的存储目录
–name 为设置该容器的名称
-d 设置容器以守护进程方式运行
mongodb container.jpeg

version: '3.1'
services:
  mongodb1:
    image: mongo
    restart: always
    container_name: mongo1
    volumes:
      - ./data/db/mongo1:/data/db
      - ./mongodb.key:/data/mongodb.key
    ports:
      - 60401:27017
    environment:
      MONGO_INITDB_ROOT_USERNAME: ${MONGO_INITDB_ROOT_USERNAME}
      MONGO_INITDB_ROOT_PASSWORD: ${MONGO_INITDB_ROOT_PASSWORD}
    networks:
      - mongoNet
    command: mongod --replSet mongos --keyFile /data/mongodb.key
    entrypoint:
      - bash
      - -c
      - |
        chmod 400 /data/mongodb.key
        chown 999:999 /data/mongodb.key
        exec docker-entrypoint.sh $$@
  mongodb2:
    image: mongo
    restart: always
    container_name: mongo2
    volumes:
      - ./data/db/mongo2:/data/db
      - ./mongodb.key:/data/mongodb.key
    ports:
      - 60402:27017
    environment:
      MONGO_INITDB_ROOT_USERNAME: ${MONGO_INITDB_ROOT_USERNAME}
      MONGO_INITDB_ROOT_PASSWORD: ${MONGO_INITDB_ROOT_PASSWORD}
    networks:
      - mongoNet
    command: mongod --replSet mongos --keyFile /data/mongodb.key
    entrypoint:
      - bash
      - -c
      - |
        chmod 400 /data/mongodb.key
        chown 999:999 /data/mongodb.key
        exec docker-entrypoint.sh $$@
  mongodb3:
    image: mongo
    restart: always
    container_name: mongo3
    volumes:
      - ./data/db/mongo3:/data/db
      - ./mongodb.key:/data/mongodb.key
    ports:
      - 60403:27017
    environment:
      MONGO_INITDB_ROOT_USERNAME: ${MONGO_INITDB_ROOT_USERNAME}
      MONGO_INITDB_ROOT_PASSWORD: ${MONGO_INITDB_ROOT_PASSWORD}
    networks:
      - mongoNet
    command: mongod --replSet mongos --keyFile /data/mongodb.key
    entrypoint:
      - bash
      - -c
      - |
        chmod 400 /data/mongodb.key
        chown 999:999 /data/mongodb.key
        exec docker-entrypoint.sh $$@
networks:
  mongoNet:
    driver: bridge

#切换到 docker-compose.yml 所在的目录
cd /adcs/mongo2
#启动 mongo 集群
docker-compose up -d
#进入节点1
docker exec -it mongo1 /bin/bash
#进入mongo 的 命令行端口
mongo
失败，因为没有输入正确的密码

root@e0ff2180d0e4:/# mongo
MongoDB shell version v4.2.1
connecting to: mongodb://127.0.0.1:27017/?compressors=disabled&gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("69ca0576-1364-48a0-8e91-fb3d871d30fc") }
MongoDB server version: 4.2.1
Welcome to the MongoDB shell.
For interactive help, type "help".
For more comprehensive documentation, see
        http://docs.mongodb.org/
Questions? Try the support group
        http://groups.google.com/group/mongodb-user
> rs.status()
{
        "ok" : 0,
        "errmsg" : "command replSetGetStatus requires authentication",
        "code" : 13,
        "codeName" : "Unauthorized"
}

#查看状态
rs.status()
{
        "ok" : 0,
        "errmsg" : "no replset config has been received",
        "code" : 94,
        "codeName" : "NotYetInitialized"
}

rs.initiate({
_id: “mongos”,
members: [
{ _id : 0, host : “192.168.1.111:27017” },
{ _id : 1, host : “192.168.1.111:27018” },
{ _id : 2, host : “192.168.1.111:27019” }
]
});