version: '3.4'
services:
  freedns-updater:
    container_name: freedns-updater
    image: git.exile.place/derek/freedns-updater:latest
    restart: on-failure:1
    environment:
      TOKENS: "randomizedToken1; randomizedToken2; ..." #provided by the afraid.org version 2 dynamic update interface
      HOURS_DELAY: "12" #optional, defaults to 6 hours between updates