Awesome
OpenVPN for Docker on Alpine
Quick instructions: see https://github.com/jpetazzo/dockvpn
Specific for alpine :
CID=$(docker run -d --privileged -p 1194:1194/udp besn0847/alpinevpn)
docker run -t -i -p 8080:8080 --volumes-from $CID besn0847/alpinevpn serveconfig