MongoDB Replicaset 구성 명령어

1. hosts에 container명 추가

Replica Set 구성 할떄 사용

$ sudo vi /etc/hosts

 

2. docker-compose-replicaset.yml(인증없이 생성)

version: '3.3'

services:

  mongo1:

    container_name: mongo1

    image: mongo:latest

    volumes:

      - ./scripts/rs-init.sh:/scripts/rs-init.sh

      - /data/mongo/mongoRepl/mongo1:/data/db

    networks:

      - mongo-network

    ports:

      - 37017:37017

    restart: always

    entrypoint: [ "/usr/bin/mongod", "--bind_ip_all", "--replSet", "dbrs:, "--port", "37017" ]

  mongo2:

    container_name: mongo2

    image: mongo:latest

    volumes:

      - /data/mongo/mongoRepl/mongo2:/data/db

    networks:

      - mongo-network

    ports:

      - 37018:37018

    restart: always

    entrypoint: [ "/usr/bin/mongod", "--bind_ip_all", "--replSet", "dbrs", "--port", "37018" ]

    depends_on:

      - mongo1

  mongo3:

    container_name: mongo3

    image: mongo:latest

    volumes:

      - /data/mongo/mongoRepl/mongo3:/data/db

    networks:

      - mongo-network

    ports:

      - 37019:37019

    restart: always

    entrypoint: [ "/usr/bin/mongod", "--bind_ip_all", "--replSet", "dbrs", "--port", "37019" ]

    depends_on:

networks:

  mongo-network:

    driver: bridge

 

3. scripts/rs-init.sh(Replica Set 구성)

#!/bin/bash

DELAY=25

mongo --port 37017 <<EOF

var config = {

    "_id": "dbrs",

    "version": 1,

    "members": [

        {

            "_id": 1,

            "host": "mongo1:37017",

            "priority": 2

        },

        {

            "_id": 2,

            "host": "mongo2:37018",

        },

        {

            "_id": 3,

            "host": "mongo3:37019",

        }

    ]

};

rs.initiate(config, { force: true });

rs.reconfig(config, { force: true });

EOF

echo "****** Waiting for ${DELAY} seconds for replicaset configuration to be applied ******"

sleep $DELAY

 

4. scripts/startReplicaSetEnvironment.sh(서버 실행)

#!/bin/bash

DELAY=10

docker-compose --file docker-compose-replicaset.yml down

docker-compose --file docker-compose-replicaset.yml up -d

echo "****** Waiting for ${DELAY} seconds for containers to go up ******"

sleep $DELAY

docker exec mongo1 /scripts/rs-init.sh

 

5. DB 및 계정 생성

mongo1 서버 접속해서 사용자 계정 생성.

$ docker exec –it mongo1 mongo

 > use admin

switched to db admin

 > db.createUser(

  {

    user: "admin",

    pwd: "qwe123",

    roles: [ "root" ]

  }

)

> show users

> use mongouser

> db.test.insert({"name": "MongoDB Tutorial", "author": "velopert"});

> use admin

> db.createUser(

  {

    user: "dbuser",

    pwd: "qwe123",

    roles: [ "dbAdmin" ]

  }

)

 

 

6. auth key 생성

Replication을 위한 키를 생성 한다.

$ mkdir mongo-security

$ cd mongo-security

$ openssl rand -base64 768 > file.key

$ chmod 400 file.key

$ sudo chown dbuser:dbuser file.key

 

 

7. docker-compose-replicaset.yml(계정 생성후 수정)

version: '3.3'

services:

  mongo1:

    container_name: mongo1

    image: mongo:latest

    volumes:

      - ./scripts/rs-init.sh:/scripts/rs-init.sh

      - ./mongo-security/file.key:/auth/file.key

      - /data/mongo/mongoRepl/mongo1:/data/db

    networks:

      - mongo-network

    ports:

      - 37017:37017

    restart: always

    entrypoint: [ "/usr/bin/mongod", "--bind_ip_all", "--replSet", "dbrs", "--keyFile", "/auth/file.key", "--port", "37017" ]

  mongo2:

    container_name: mongo2

    image: mongo:latest

    volumes:

      - ./mongo-security/file.key:/auth/file.key

      - /data/mongo/mongoRepl/mongo2:/data/db

    networks:

      - mongo-network

    ports:

      - 37018:37018

    restart: always

    entrypoint: [ "/usr/bin/mongod", "--bind_ip_all", "--replSet", "dbrs", "--keyFile", "/auth/file.key", "--port", "37018" ]

    depends_on:

      - mongo1

  mongo3:

    container_name: mongo3

    image: mongo:latest

    volumes:

      - ./mongo-security/file.key:/auth/file.key

      - /data/mongo/mongoRepl/mongo3:/data/db

    networks:

      - mongo-network

    ports:

      - 37019:37019

    restart: always

    entrypoint: [ "/usr/bin/mongod", "--bind_ip_all", "--replSet", "dbrs", "--keyFile", "/auth/file.key", "--port", "37019" ]

    depends_on:

networks:

  mongo-network:

    driver: bridge

 

8. scripts/rs-init.sh(계정 생성후 수정)

#!/bin/bash

DELAY=25

mongo -u "admin" -p "qwe123" --authenticationDatabase "admin" --port 37017 <<EOF

var config = {

    "_id": "dbrs",

    "version": 1,

    "members": [

        {

            "_id": 1,

            "host": "mongo1:37017",

            "priority": 2

        },

        {

            "_id": 2,

            "host": "mongo2:37018",

        },

        {

            "_id": 3,

            "host": "mongo3:37019",

        }

    ]

};

rs.initiate(config, { force: true });

rs.reconfig(config, { force: true });

EOF

echo "****** Waiting for ${DELAY} seconds for replicaset configuration to be applied ******"

sleep $DELAY

 

9. 서버 실행

docker-compose 파일이 있는 폴더에서 실행

$ ./scripts/startReplicaSetEnvironment.sh

mongo1 서버에 접속 했을때 PRIMARY로 접속 되는지 확인

$ docker exec -it mongo1 bash

root@8e2629c0b6e1:/# mongo -u admin -p qwe123 --port 37017