Try to obtain PID from PIDFILE. If this fails (file does not exist or is empty), fall back to using pidof + awk

Signed-off-by: DL6ER <dl6er@dl6er.de>

advanced/Templates/pihole-FTL.service

@@ -13,6 +13,13 @@ FTLUSER=pihole
 PIDFILE=/var/run/pihole-FTL.pid
 
 get_pid() {
+    # First, try to obtain PID from PIDFILE
+    if [ -s "${PIDFILE}" ]; then
+        cat "${PIDFILE}"
+        return
+    fi
+
+    # If the PIDFILE is empty or not available, obtain the PID using pidof
     pidof "pihole-FTL" | awk '{print $(NF)}'
 }