Local S3 with Minio and created bucket on startup

docker-compose.yml

version: '3'

services:
  minio:
    image: minio/minio:RELEASE.2019-07-17T22-54-12Z
    volumes:
    - data:/data
    ports:
    - "9000:9000"
    networks:
      - minio
    environment:
      MINIO_ACCESS_KEY: minio
      MINIO_SECRET_KEY: minio123
    command: server /data

  create_buckets:
    image: minio/mc:RELEASE.2019-07-17T22-13-42Z
    depends_on:
      - minio
    networks:
      - minio
    entrypoint: >
      /bin/sh -c '
      sleep 5;
      /usr/bin/mc config host add s3 http://minio:9000 minio minio123 --api S3v4;
      [[ ! -z "`/usr/bin/mc ls s3 | grep challenge`" ]] || /usr/bin/mc mb s3/challenge;
      /usr/bin/mc policy download s3/challenge;
      exit 0;
      '

volumes:
  data:

networks:
  minio: