docker-compose.yml

version: '2.1'
networks:
  my-custom-network:
    enable_ipv6: true
services:
  wireguard:
    image: linuxserver/wireguard
    container_name: wireguard
    cap_add:
      - NET_ADMIN
      - SYS_MODULE
    environment:
      - USER=root
      - PUID=1001
      - PGID=1001
      - VIRTUAL_HOST=torrent
      - VIRTUAL_PORT=9091
      - TZ=Europe/Paris
    volumes:
      - /some/path/to/wireguard/config:/config
      - /lib/modules:/lib/modules
    ports:
      - 51820:51820/udp
      - 9091:9091
    sysctls:
      - net.ipv4.conf.all.src_valid_mark=1
      - net.ipv6.conf.all.disable_ipv6=0
      - net.ipv6.conf.eth0.proxy_ndp=1
    restart: unless-stopped

  transmission:
    image: linuxserver/transmission
    container_name: transmission
    environment:
      - PUID=1001
      - UGID=1001
      - TZ=Europe/Paris
      - TRANSMISSION_WEB_HOME=/transmission-web-control/
    volumes:
      - /some/path/to/transmission/config:/config
      - /some/path/to/torrent-watch-folder:/watch
      - /some/path/to/torrent-data:/downloads
    depends_on:
      - wireguard
    network_mode: service:wireguard