A script and configuration to toggle a VPN server from within Home Assistant. Currently only tested with a router running ASUSMerlin.

Steps:

1. Create keys ssh-keygen -t rsa -b 4096 -C "comment"
2. Copy key to host ssh-copy-id user@host
3. Verfiy the connection ssh user@host. You shouldn't be asked for a password.
4. Place vpntoggle.sh and the key somewhere accessable to Home Assistant and make sure the script is executable chmod +x vpntoggle.sh
5. Edit the script to match your configuration.
6. Add the configuration to you Home Assistant. It's of the type switch.

Things to look out for: If using docker you will need to generate keys within the container. You can access the container with docker exec -it CONTAINER bash. You will also need to place the script somewhere the containter can find it. I placed mine under the config directory defined in the docker run command.