Add systemd override for wg-quick units that don't yet implement reload

- Discussed on pull request 1164

auto_install/install.sh

@@ -2037,6 +2037,13 @@ confOVPN(){
 }
 
 confWireGuard(){
+	# Reload job type is not yet available in wireguard-tools shipped with Ubuntu 20.04
+	if ! grep -q 'ExecReload' /usr/lib/systemd/system/wg-quick@.service; then
+		echo "::: Adding additional reload job type for wg-quick unit"
+		$SUDOE install -m 644 "${pivpnFilesDir}"/files/etc/systemd/system/wg-quick@.service.d/override.conf /etc/systemd/system/wg-quick@.service.d/override.conf
+		$SUDO systemctl daemon-reload
+	fi
+
 	if [ -d /etc/wireguard ]; then
 		# Backup the wireguard folder
 		WIREGUARD_BACKUP="wireguard_$(date +%Y-%m-%d-%H%M%S).tar.gz"

files/etc/systemd/system/wg-quick@.service.d/override.conf

@@ -0,0 +1,2 @@
+[Service]
+ExecReload=/bin/bash -c 'exec /usr/bin/wg syncconf %i <(exec /usr/bin/wg-quick strip %i)'

scripts/uninstall.sh

@@ -146,6 +146,10 @@ removeAll(){
 								${UPDATE_PKG_CACHE} &> /dev/null & spinner $!
 							fi
 
+							if [ -f /etc/systemd/system/wg-quick@.service.d/override.conf ]; then
+								rm -f /etc/systemd/system/wg-quick@.service.d/override.conf
+							fi
+
 						elif [ "${i}" = "unattended-upgrades" ]; then
 
 							rm -rf /var/log/unattended-upgrades