A simple script to periodically update the correct IPv4 client IP for IPv6 tunnels from https://tunnelbroker.he.net.
It runs in a Docker container, and exits after a given delay. Docker's --restart=always can be used to ensure this runs in a continuous loop.
$ docker run -d -e DELAY=720 -e HOSTNAME=foo.example.com -e APIKEY=bar --restart=always hairyhenderson/henet-ipupdaterCopyright (c) 2016-2019 Dave Henderson