도커 컴포저를 이용한 Replica Set 간편 구성 (샘플1)

docker-compose-init.yml

version: '3.7'

services:
  anguis1:
    image: mongo:4.1
    hostname: anguis1
    container_name: anguis1
    networks:
      - mongo-bridge
    ports:
      - 30001:27017
    volumes:
      - /data/mongo/db-01:/data/db
    restart: always
    command: ["mongod", "--replSet", "anguis-repl", "--bind_ip_all", "--ipv6"]
  anguis2:
    image: mongo:4.1
    hostname: anguis2
    container_name: anguis2
    networks:
      - mongo-bridge
    ports:
      - 30002:27017
    volumes:
      - /data/mongo/db-02:/data/db
    restart: always
    command: ["mongod", "--replSet", "anguis-repl", "--bind_ip_all", "--ipv6"]
  anguis3:
    image: mongo:4.1
    hostname: anguis3
    container_name: anguis3
    networks:
      - mongo-bridge
    ports:
      - 30003:27017
    volumes:
      - /data/mongo/db-03:/data/db
    restart: always
    command: ["mongod", "--replSet", "anguis-repl", "--bind_ip_all", "--ipv6"]
  # configure the mongo replica set
  mongosetup:
    build: ./mongosetup
    networks:
      - mongo-bridge
    volumes:
      - ./scripts:/scripts
    entrypoint: [ "/scripts/setup_init.sh" ]

networks:
  mongo-bridge:
    name: mongo-bridge

scripts\setup_init.sh

#!/usr/bin/env bash

echo "Waiting for MongoDB startup.."
until [ "$(mongo --host anguis1:27017 admin --eval "printjson(db.serverStatus())" | grep uptime | head -1)" ]; do
  printf '.'
  sleep 1
done

echo $(mongo --host anguis1:27017 admin --eval "printjson(db.serverStatus())" | grep uptime | head -1)
echo "MongoDB Started.."


echo SETUP.sh time now: `date +"%T" `
mongo --host anguis1:27017 <<EOF
   var cfg = {
        "_id": "anguis-repl",
        "members": [
            {
                "_id": 0,
                "host": "anguis1:27017",
                "priority": 2
            },
            {
                "_id": 1,
                "host": "anguis2:27017",
                "priority": 0
            },
            {
                "_id": 2,
                "host": "anguis3:27017",
                "priority": 1,
                "arbiterOnly": true
            }
        ]
    };
    rs.initiate(cfg, { force: true });
    rs.reconfig(cfg, { force: true });
EOF