docker.compose.yaml

version: '2'

services:
  letsencrypt:
    container_name: letsencrypt
    image: linuxserver/letsencrypt
    restart: unless-stopped
    networks:
      nginx_network:
        ipv4_address: 192.168.1.33  #choose any IP of your choice
    ports:
     - 80:80 #open this port in your router and set it to the ip above
     - 443:443 #open this port in your router and 
    environment:
      - EMAIL=your@email.com #optional, fill in if you want cert-notifications
      - TZ=Europe/Stockholm #set your timezone
      - URL=example.com #your url domain.com domain.duckdns.org etc.. 
      - SUBDOMAINS=,www,hass,unifi #add any subdomains you are going to be using
      - VALIDATION=http #make sure port 80 is open and clear 
    volumes:
     - /docker/letsencrypt/config:/config #you will have to create this dir or you will get an error
    cap_add:
     - NET_ADMIN


networks:
  nginx_network:
    driver: macvlan
    driver_opts:
      parent: eth0
    ipam:
      config:
        - subnet: 192.168.1.0/24            # <-- Update to the same subnet your current network has.