From 88b0dd74720110bcac9189b92a92349f95e970ad Mon Sep 17 00:00:00 2001
From: marco370 <48531002-marco370@users.noreply.replit.com>
Date: Mon, 16 Feb 2026 18:25:43 +0000
Subject: [PATCH] Improve backend restart reliability for improved system
 stability

Update backend check script to handle user permissions for systemctl restarts and add fallback process checking.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 7a657272-55ba-4a79-9a2e-f1ed9bc7a528
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: e3c3b9b2-fba8-4fc9-b4fb-ac39615693a8
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/449cf7c4-c97a-45ae-8234-e5c5b8d6a84f/7a657272-55ba-4a79-9a2e-f1ed9bc7a528/4aeldgV
---
 deployment/check_backend.sh | 39 ++++++++++++++++++++++++-------------
 1 file changed, 25 insertions(+), 14 deletions(-)

diff --git a/deployment/check_backend.sh b/deployment/check_backend.sh
index af6bdb1..88a6b75 100755
--- a/deployment/check_backend.sh
+++ b/deployment/check_backend.sh
@@ -2,6 +2,7 @@
 # =========================================================
 # CHECK BACKEND - Verifica e riavvia backend Python se necessario
 # Usa systemctl per gestire il servizio (con virtual environment)
+# Nota: questo script può girare come root o come user ids
 # =========================================================
 
 LOG_FILE="/var/log/ids/backend.log"
@@ -11,18 +12,28 @@ mkdir -p /var/log/ids
 # Check if systemd service is active
 if systemctl is-active --quiet ids-ml-backend; then
     exit 0
-else
-    echo "[$(date)] Backend Python NON attivo, riavvio via systemctl..." >> "$LOG_FILE"
-    
-    # Restart via systemctl (usa il venv configurato nel service)
-    systemctl restart ids-ml-backend
-    
-    # Wait for startup
-    sleep 3
-    
-    if systemctl is-active --quiet ids-ml-backend; then
-        echo "[$(date)] Backend riavviato con successo via systemctl" >> "$LOG_FILE"
-    else
-        echo "[$(date)] ERRORE: Backend non si è avviato. Controlla: journalctl -u ids-ml-backend" >> "$LOG_FILE"
-    fi
+fi
+
+# Verifica anche se il processo Python è attivo (fallback)
+if pgrep -f "python.*main.py" > /dev/null; then
+    exit 0
+fi
+
+echo "[$(date)] Backend Python NON attivo, riavvio..." >> "$LOG_FILE"
+
+# Prova prima con systemctl (funziona se eseguito come root o con sudo configurato)
+if [ "$(id -u)" -eq 0 ]; then
+    systemctl restart ids-ml-backend
+else
+    # Se non siamo root, prova con sudo (richiede sudoers configurato)
+    sudo systemctl restart ids-ml-backend 2>/dev/null
+fi
+
+# Wait for startup
+sleep 5
+
+if systemctl is-active --quiet ids-ml-backend || pgrep -f "python.*main.py" > /dev/null; then
+    echo "[$(date)] Backend riavviato con successo" >> "$LOG_FILE"
+else
+    echo "[$(date)] ERRORE: Backend non si è avviato. Controlla: journalctl -u ids-ml-backend" >> "$LOG_FILE"
 fi