version: '3'

services:
  mongodb1:
    image: mongo:4.4.6
    container_name: mongodb1
    networks:
      yewu-network:
        ipv4_address: 192.168.177.61
    restart: always
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=FjcpIvWHVSfrZlry
    ports:
      - 27017:27017
    volumes:
      - ./mongodb1-data:/data/db
    entrypoint:
      - sh
      - -euc
      - |
        cat <<'EOF'> /data/replica.key
        koZpwlmElilPVpIm+hFeuMuz0yhz7H8DJ28HSDiZQb76EE77MbY/V47Jf2MQKTU9
        AJW8L9dCcwr+iJ/nszZ4cj/xOikAITJQP7hQb+Aa+uR+iqZ0nFBMdMWozFKUxBhe
        uapG/A==
        EOF
        chown mongodb:mongodb /data/replica.key
        chmod 600 /data/replica.key
        docker-entrypoint.sh mongod --replSet "rs0" --bind_ip_all --wiredTigerCacheSizeGB 2 --auth --keyFile /data/replica.key


  mongodb2:
    image: mongo:4.4.6
    container_name: mongodb2
    networks:
      yewu-network:
        ipv4_address: 192.168.177.62
    restart: always
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=FjcpIvWHVSfrZlry
    volumes:
      - ./mongodb2-data:/data/db
    entrypoint:
      - sh
      - -euc
      - |
        cat <<'EOF'> /data/replica.key
        koZpwlmElilPVpIm+hFeuMuz0yhz7H8DJ28HSDiZQb76EE77MbY/V47Jf2MQKTU9
        AJW8L9dCcwr+iJ/nszZ4cj/xOikAITJQP7hQb+Aa+uR+iqZ0nFBMdMWozFKUxBhe
        uapG/A==
        EOF
        chown mongodb:mongodb /data/replica.key
        chmod 600 /data/replica.key
        docker-entrypoint.sh mongod --replSet "rs0" --bind_ip_all --wiredTigerCacheSizeGB 2 --auth --keyFile /data/replica.key

  mongodb3:
    image: mongo:4.4.6
    container_name: mongodb3
    networks:
      yewu-network:
        ipv4_address: 192.168.177.63
    restart: always
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=FjcpIvWHVSfrZlry
    volumes:
      - ./mongodb3-data:/data/db
    entrypoint:
      - sh
      - -euc
      - |
        cat <<'EOF'> /data/replica.key
        koZpwlmElilPVpIm+hFeuMuz0yhz7H8DJ28HSDiZQb76EE77MbY/V47Jf2MQKTU9
        AJW8L9dCcwr+iJ/nszZ4cj/xOikAITJQP7hQb+Aa+uR+iqZ0nFBMdMWozFKUxBhe
        uapG/A==
        EOF
        chown mongodb:mongodb /data/replica.key
        chmod 600 /data/replica.key
        docker-entrypoint.sh mongod --replSet "rs0" --bind_ip_all --wiredTigerCacheSizeGB 2 --auth --keyFile /data/replica.key



networks:
  yewu-network:
    driver: bridge
    ipam:
      config:
        - subnet: 192.168.177.0/24
    name: yewu-network

（1）mongodb集群信息

mongo --host rs0/192.168.177.61:27017,192.168.177.62:27017,192.168.177.63:27017 -u admin -p FjcpIvWHVSfrZlry --authenticationDatabase admin

（2）部署时，首先需要生成key文件

openssl rand -base64 1024 > mongodb.key

（3）然后使用admin账号登录mongo，并生成集群信息。

mongo -u admin -p FjcpIvWHVSfrZlry

rs.initiate({
  _id: "rs0",
  members: [
    {
      _id: 0,
      host: "192.168.177.61:27017"
    },
    {
      _id: 1,
      host: "192.168.177.62:27017"
    },
    {
      _id: 2,
      host: "192.168.177.63:27017"
    }
  ]
});

（4）测试集群是否正常