docker-compose.yml

---
version: "2.1"
services:
  wireguard:
    image: linuxserver/wireguard
    container_name: wireguard
    cap_add:
      - NET_ADMIN
      - SYS_MODULE
    environment:
      - PUID=1000
      - PGID=1000
    volumes:
      - /root/vpn:/config
      - /lib/modules:/lib/modules
    ports:
      - 51820:51820/udp
    sysctls:
      - net.ipv4.conf.all.src_valid_mark=1
    restart: unless-stopped
  test:
    container_name: 'test'
    image: 'testing'
    restart: 'unless-stopped'
    network_mode: "service:wireguard"

wg0.conf

[Interface]
PrivateKey = BLABLA
Address = 10.66.197.64/32
DNS = 193.138.218.74

[Peer]
PublicKey = BLABLA
AllowedIPs = 0.0.0.0/0
Endpoint = 185.216.33.114:51820