技术

Creating a Mongo replicaset using docker_ Mongo replicaset + Nodejs + Docker Compose

参考 https://www.youtube.com/watch?v=mlw7vWISaF4

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version: '3'
services:
  mongo-rs0-1:
    image: "mongo-start"
    build: ./mongo-rs0-1
    ports:
      - '27017:27017'
    volumes:
      - ./mongo-rs0-1/data:/data/db
      - ./mongo-rs0-1/keyfile:/usr/src/configs/keyfile
      - ./mongo-rs0-1/log:/usr/src/configs/logs
      - ./mongo-rs0-1/backup:/usr/src/configs/backup
    depends_on:
      - 'mongo-rs0-2'
      - 'mongo-rs0-3'

  mongo-rs0-2:
    image: 'mongo'
    build: ./mongo-rs0-2
    ports:
      - '27018:27017'
    volumes:
      - ./mongo-rs0-2/data:/data/db
      - ./mongo-rs0-2/keyfile:/usr/src/configs/keyfile
      - ./mongo-rs0-2/log:/usr/src/configs/logs

  mongo-rs0-3:
    image: 'mongo'
    build: ./mongo-rs0-3
    ports:
      - '27019:27017'
    volumes:
      - ./mongo-rs0-3/data:/data/db
      - ./mongo-rs0-3/keyfile:/usr/src/configs/keyfile
      - ./mongo-rs0-3/log:/usr/src/configs/logs

  setup-rs:
    image: "setup-rs"
    build: ./setup
    volumes:
      - ./setup/replicaSet.js:/usr/src/configs/replicaSet.js
      - ./setup/setup.sh:/usr/src/configs/setup.sh
    depends_on:
      - 'mongo-rs0-1'

有几个问题

容器setup-rs执行总是失败，导致副本集无法创建，只能进入容器mongo-rs0-1，执行replicaSet.js里
的内容创建副本集

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rsconf = {
	_id: "rs0",
	members: [
		{_id: 0, host: "mongo-rs0-1:27017"},
		{_id: 1, host: "mongo-rs0-2:27017"},
		{_id: 2, host: "mongo-rs0-3:27017"}
	]
}

rs.initiate(rsconf);
rs.conf();

之后创建用户。
因为在本地你可以不使用keyfile。如果使用要注意权限问题