wireguard-docker-compose.yml

---
version: "2.1"
services:
  wireguard:
    image: lscr.io/linuxserver/wireguard
    container_name: wireguard
    cap_add:
      - NET_ADMIN
      - SYS_MODULE
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Europe/London
      - SERVERURL=172.123.123.123 # your server's IP, you can try "auto" instead
      - SERVERPORT=51820
      - PEERS=20
      - PEERDNS=auto
      - INTERNAL_SUBNET=10.13.13.0
      - ALLOWEDIPS=0.0.0.0/0
    volumes:
      - ~/wireguard/config:/config
      - /lib/modules:/lib/modules
    ports:
      - 51820:51820/udp # you should open this on external firewall
    sysctls:
      - net.ipv4.conf.all.src_valid_mark=1
    restart: unless-stopped