x-default: &default
  restart: unless-stopped
  volumes:
    - &localtime /etc/localtime:/etc/localtime:ro
    - &timezone /etc/timezone:/etc/timezone:ro
  logging:
    driver: json-file
    options:
      max-size: 100m

x-mongo: &mongo
  <<: *default
  image: mongo:${MONGO_VERSION:-8.0.13}
  environment:
    MONGO_INITDB_ROOT_USERNAME: ${MONGO_INITDB_ROOT_USERNAME:-root}
    MONGO_INITDB_ROOT_PASSWORD: ${MONGO_INITDB_ROOT_PASSWORD:-password}
    MONGO_INITDB_DATABASE: ${MONGO_INITDB_DATABASE:-admin}
  command:
    - mongod
    - --replSet
    - ${MONGO_REPLICA_SET_NAME:-rs0}
    - --keyFile
    - /secrets/rs0.key
  volumes:
    - *localtime
    - *timezone
    - ./secrets/rs0.key:/secrets/rs0.key
  entrypoint:
    - bash
    - -c
    - |
      chmod 400 /secrets/rs0.key
      chown 999:999 /secrets/rs0.key
      exec docker-entrypoint.sh $$@
  deploy:
    resources:
      limits:
        cpus: '0.50'
        memory: 1G
      reservations:
        cpus: '0.25'
        memory: 256M

services:
  mongo1:
    <<: *mongo
    ports:
      - "${MONGO_PORT_OVERRIDE_1:-27017}:27017"
  mongo2:
    <<: *mongo
    ports:
      - "${MONGO_PORT_OVERRIDE_2:-27018}:27017"
  mongo3:
    <<: *mongo
    ports:
      - "${MONGO_PORT_OVERRIDE_3:-27019}:27017"