Easy set up of Syncthing for Docker.
The commands are to be run on both machines you wish to connect:
docker run -d --name st -p 22000:22000 -p 21027/udp -v [DIRECTORY YOU WANT TO SHARE]:/home/syncuser/Sync afrazkhan/syncthing
docker exec st stcli-actions.sh id
-- make note of IDdocker exec st stcli-actions.sh join [ID FROM OTHER MACHINE]