version: '2'

services:
  # Example application container, this is where your data is.
  app:
    image: alpine:3.5
    # Simulate an application server with an endless loop.
    command: sh -c 'while true; do sleep 10; done';
    volumes:
      - ./data:/data
  # RSYNCD Server
  rsyncd:
    build: .
    image: mickaelperrin/rsyncd-server:latest
    environment:
      # REQUIRED: For user/password authentication
      - USERNAME=sftp
      - PASSWORD=password
      # REQUIRED: Should be the same as the volume mapping of app container
      - VOLUME_PATH=/data
      # OPTIONAL: If you want to restrict access to the volume in read only mode. (default false)
      - READ_ONLY=false
      # OPTIONAL: If you want to chroot the use of rsync. Be sure that your directory structure is compatible.
      # See documentation
      # (default no)
      - CHROOT=yes
      # OPTIONAL: customize the volume name in rsync (default: volume)
      - VOLUME_NAME=data
      # OPTIONAL: restrict connection from (default: 0.0.0.0/0)
      - HOSTS_ALLOW=0.0.0.0/0
      # OPTIONAL: define the user name or user ID that file transfers to and from that module should take place
      # (default set to UID owner of VOLUME_PATH)
      # - OWNER_ID = 1000
      # OPTIONAL: specifies one or more group names/IDs that will be used when accessing the module. The first one will be the default group, and any extra ones be set as supplemental groups.
      # (default set to GID owner of VOLUME_PATH)
      # - GROUP_ID = 1000
      # OPTIONAL: enable SSH server for rsync-over-SSH (default false)
      - ENABLE_SSH=false
      # OPTIONAL: disable rsync daemon if you only want SSH transport (default true)
      - ENABLE_RSYNCD=true
      # OPTIONAL: SSH password for USERNAME (default: PASSWORD)
      # - SSH_PASSWORD=password
      # OPTIONAL: enable password auth in SSH server (default true)
      - SSH_PASSWORD_AUTH=true
      # OPTIONAL: SSH user home directory (default: VOLUME_PATH)
      # - SSH_USER_HOME=/home/sftp
      # OPTIONAL: final SSH directory used by sshd (default: SSH_USER_HOME/.ssh)
      # - SSH_DIR=/home/sftp/.ssh
      # OPTIONAL: one or more public keys for USERNAME (supports '\n' between keys)
      # - SSH_PUBLIC_KEY=ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAI...
      # OPTIONAL: mounted authorized_keys file path (default /authorized_keys)
      - SSH_AUTHORIZED_KEYS_FILE=/authorized_keys
    ports:
      - 18873:873
      - 12222:22
    volumes_from:
      - app
    volumes:
      # Optional authorized_keys file mount for SSH key auth
      - ./ssh/authorized_keys:/authorized_keys:ro