Add walls-bot service

Signed-off-by: Harsh Shandilya <msfjarvis@gmail.com>

update.sh

@@ -8,7 +8,7 @@ function prettyPrint {
 }
 
 # Grab all service names
-declare -a services=('androidx-release-watcher' 'caddy' 'gitea' 'horbiswalls-bot' 'mirror-bot' 'uno-bot')
+declare -a services=('androidx-release-watcher' 'caddy' 'gitea' 'horbiswalls-bot' 'mirror-bot' 'uno-bot', 'walls-bot')
 declare -a timers=('release-watcher-recent')
 
 # Now loop through each service and install it

walls-bot.service

@@ -0,0 +1,26 @@
+[Unit]
+Description=horbiswalls Telegram bot service
+After=network.target
+
+[Service]
+Restart=on-abort
+Type=simple
+User=bot
+WorkingDirectory=/home/bot/walls-bot
+ExecStart=/home/bot/walls-bot/gradlew run
+ExecReload=/bin/kill -USR1 $MAINPID
+
+; Use graceful shutdown with a reasonable timeout
+KillMode=mixed
+KillSignal=SIGQUIT
+TimeoutStopSec=5s
+
+; Use private /tmp and /var/tmp, which are discarded after the process stops.
+PrivateTmp=true
+; Use a minimal /dev (May bring additional security if switched to 'true', but it may not work on Raspberry Pi's or other devices, so it has been disabled in this dist.)
+PrivateDevices=false
+; Make /usr, /boot, /etc and possibly some more folders read-only.
+ProtectSystem=full
+
+[Install]
+WantedBy=multi-user.target