add example for proton vpn port forwarding setup

Author: Splinter7914

setup/advanced/vpn-port-forwarding.md

@@ -34,6 +34,15 @@ Notes:
 - one can bind mount a shell script in Gluetun and execute it with for example `VPN_PORT_FORWARDING_UP_COMMAND=/bin/sh -c /gluetun/myscript.sh` - 💁  feel free to propose a pull request to add commonly used shell scripts for port forwarding!
 - the output of the command is written to the port forwarding logger within Gluetun
 
+### qBittorrent Example
+
+See [qbittorrent-port-updater.sh](scripts/qbittorrent-port-updater.sh) for an example of how this can be done. Add a bind mount to this script and then refert to it: `VPN_PORT_FORWARDING_UP_COMMAND=/bin/sh -c "/tmp/qbit-port-updater.sh {{PORTS}}"`
+
+Notes:
+
+- In order to get the call working make sure port qBittorrent is listening on is open. For example `- 8080:8080` to the ports definition. Without this calls do not go through.
+- Add `127.0.0.1/32` to bypass authentication settings for qBittorrent.
+
 ## Allow a forwarded port through the firewall
 
 For non-native integrations where you have a designated forwarded port from your VPN provider, you can allow it by adding it to the environment variable `FIREWALL_VPN_INPUT_PORTS`.

setup/providers/protonvpn.md

@@ -35,7 +35,7 @@ services:
       - SERVER_COUNTRIES=Netherlands
 ```
 
-💁 To use with Wireguard, download a configuration file from [account.proton.me/u/0/vpn/WireGuard](https://account.proton.me/u/0/vpn/WireGuard) and head to [the custom provider Wireguard section](custom.md#wireguard). Thanks to [@pvanryn](https://github.com/pvanryn) for pointing this out. Note however you cannot filter servers as easily as with OpenVPN since each server uses its own private key and/or peer address.
+💁 To use with Wireguard, download a configuration file from [account.proton.me/u/0/vpn/WireGuard](https://account.proton.me/u/0/vpn/WireGuard) and set the `WIREGUARD_PRIVATE_KEY`. You can do a [the custom provider Wireguard section](custom.md#wireguard) to pick a specific server. Thanks to [@pvanryn](https://github.com/pvanryn) for pointing this out.
 
 ## Required environment variables
 
@@ -75,6 +75,7 @@ Requirements:
 - Add `+pmp` to your OpenVPN username (thanks to [@mortimr](https://github.com/qdm12/gluetun/issues/1760#issuecomment-1669518288))
 - `VPN_PORT_FORWARDING=on`
 - If you use **Wireguard** using the custom provider, set `VPN_PORT_FORWARDING_PROVIDER=protonvpn`
+- See [custom port forwarding updown command](advanced/vpn-port-forwarding.md#custom-port-forwarding-updown-command) for examples of how to automate this.
 
 ## Multi hop regions