2024-12-03 I used this for RPI2
https://github.com/giggio/docker-openvpn-arm
(Now working wit hless security in android vpn client


Older instructions below > >
Running OpenVPN 
https://cj-hewett.medium.com/running-openvpn-server-with-docker-on-a-raspberry-pi-with-noip-39459dd9b625

Also see this link about setting up the DUC client correctly.
https://sizious.com/2017/04/30/how-to-properly-install-no-ip-dynamic-update-client-duc-under-raspbian/

pdf's should be in paperless.