docker-compose-mongo.yml

version: '3.7'

services:
    mongo:
        container_name: chatee_mongo
        image: mongo
        restart: always
        command: ['--replSet', 'rs0', '--bind_ip_all', '--port', '27017']
        ports:
            - '27017:27017'
        volumes:
            - myvolume:/data/db
    mongo_init:
        image: mongo
        depends_on:
            - mongo
        command: >
            /bin/bash -c "
            while ! echo 'try { rs.status() } catch (err) { rs.initiate({_id:\"rs0\",members:[{_id:0,host:\"127.0.0.1:27017\"}]}); }' | mongosh --host mongo --port 27017 --quiet; do
            sleep 5;
            done;"
        restart: on-failure

volumes:
    myvolume: