version: '3.7'

# Settings and configurations that are common for all containers
x-minio-common: &minio-common
  image: quay.io/minio/minio:RELEASE.2021-10-13T00-23-17Z
  command: server --console-address ":9001" http://minio{1...4}/data{1...2}
  expose:
    - "9000"
    - "9001"
  environment:
    MINIO_ROOT_USER: minio
    MINIO_ROOT_PASSWORD: minio123
  healthcheck:
    test: [ "CMD", "curl", "-f", "http://localhost:9000/minio/health/live" ]
    interval: 30s
    timeout: 20s
    retries: 3

# starts 4 docker containers running minio server instances.
# using nginx reverse proxy, load balancing, you can access
# it through port 9000.
services:
  minio1:
    <<: *minio-common
    hostname: minio1

  minio2:
    <<: *minio-common
    hostname: minio2

  minio3:
    <<: *minio-common
    hostname: minio3

  minio4:
    <<: *minio-common
    hostname: minio4

  nginx:
    image: nginx:1.19.2-alpine
    hostname: nginx
    volumes:
      - ./nginx-minio-cluster.conf:/etc/nginx/nginx.conf:ro
    ports:
      - "9000:9000"
      - "9001:9001"
    depends_on:
      - minio1
      - minio2
      - minio3
      - minio4