monog db replicate with docker compose

docker-compose.yaml

version: "3"

services:
  mongo1:
    image: mvertes/alpine-mongo
    restart: always
    ports:
      - "27017:27017"
    entrypoint: [ "/usr/bin/mongod", "--port", "27017", "--bind_ip_all", "--replSet", "rs"]
  
  mongo2:
    image: mvertes/alpine-mongo
    restart: always
    ports:
      - "27018:27018"
    entrypoint: [ "/usr/bin/mongod", "--port", "27018", "--bind_ip_all", "--replSet", "rs"]

  mongo3:
    image: mvertes/alpine-mongo
    restart: always
    ports:
      - "27019:27019"
    entrypoint: [ "/usr/bin/mongod", "--port", "27019", "--bind_ip_all", "--replSet", "rs"]

#!/bin/sh

sudo docker-compose -f docker-compose.yaml up -d
sudo docker-compose -f docker-compose.yaml exec mongo1 mongo --port 27017 --eval 'var cfg = { "_id": "rs", "version": 1, "members": [{ "_id": 0, "host": "mongo1:27017", "priority": 2 }, { "_id": 1, "host": "mongo2:27018", "priority": 0 }, { "_id": 2, "host": "mongo3:27019", "priority": 0 } ] }; rs.initiate(cfg); rs.status();

需要设置hosts:

127.0.0.1 mongo1
127.0.0.1 mongo2
127.0.0.1 mongo3