fix(ha): orchestration Keepalived root, support unicast VRRP, preservation identite backup et synchro HTTPS

install.sh

@@ -171,8 +171,12 @@ mkdir -p /var/lib/asterisk/sounds/custom
 mkdir -p /var/spool/asterisk/voicemail/default
 mkdir -p /var/log/asterisk /var/log/asterisk/cdr-csv
 mkdir -p /var/log/nexus-pbx
-mkdir -p /etc/keepalived
+mkdir -p /etc/keepalived/scripts
 mkdir -p "$TARGET_DIR/scripts/cluster"
+touch /var/log/nexus_cluster.log
+chmod 666 /var/log/nexus_cluster.log
+sysctl -w net.ipv4.ip_nonlocal_bind=1 >/dev/null 2>&1 || true
+echo "net.ipv4.ip_nonlocal_bind=1" > /etc/sysctl.d/99-nexus-ha.conf 2>/dev/null || true
 
 touch /var/log/asterisk/messages /var/log/asterisk/security.log /var/log/asterisk/cdr-csv/Master.csv
 chown -R asterisk:asterisk /var/log/asterisk 2>/dev/null || true
@@ -201,7 +205,7 @@ setfacl -R -d -m u:www-data:rwx,g:asterisk:rwx /etc/asterisk /var/lib/asterisk/s
 # Droits sudoers pour l'interface web (www-data)
 cat << 'EOF' > /etc/sudoers.d/nexus-pbx
 # Privilèges spécifiques NexusPBX pour l'utilisateur Web www-data
-www-data ALL=(ALL) NOPASSWD: /usr/sbin/asterisk, /usr/sbin/nginx, /usr/bin/systemctl, /usr/bin/fail2ban-client, /bin/fail2ban-client, /var/www/nexus-pbx/scripts/nexus-firewall, /usr/bin/certbot, /usr/sbin/nft, /usr/sbin/iptables, /var/www/nexus-pbx/scripts/update.sh, /usr/local/bin/nexus-update
+www-data ALL=(ALL) NOPASSWD: /usr/sbin/asterisk, /usr/sbin/nginx, /usr/bin/systemctl, /usr/bin/fail2ban-client, /bin/fail2ban-client, /var/www/nexus-pbx/scripts/nexus-firewall, /usr/bin/certbot, /usr/sbin/nft, /usr/sbin/iptables, /var/www/nexus-pbx/scripts/update.sh, /usr/local/bin/nexus-update, /var/www/nexus-pbx/scripts/nexus-cluster
 EOF
 chmod 0440 /etc/sudoers.d/nexus-pbx
 
@@ -213,7 +217,7 @@ for fpm_svc in /lib/systemd/system/php*-fpm.service /usr/lib/systemd/system/php*
         cat << 'EOF_OVERRIDE' > "/etc/systemd/system/${svc_name}.d/override.conf"
 [Service]
 ProtectSystem=false
-ReadWritePaths=/etc/asterisk /etc/fail2ban /etc/nginx /var/log /var/lib/asterisk /var/spool/asterisk /var/www /usr/local/bin /etc/sudoers.d /etc/letsencrypt /var/lib/letsencrypt
+ReadWritePaths=/etc/asterisk /etc/fail2ban /etc/nginx /var/log /var/lib/asterisk /var/spool/asterisk /var/www /usr/local/bin /etc/sudoers.d /etc/letsencrypt /var/lib/letsencrypt /etc/keepalived
 EOF_OVERRIDE
     fi
 done
@@ -483,10 +487,12 @@ chmod 0644 /etc/cron.d/nexus-backup
 touch /var/log/nexus_backup.log && chown www-data:asterisk /var/log/nexus_backup.log && chmod 664 /var/log/nexus_backup.log
 
 # CLI symlinks
-chmod +x "$TARGET_DIR/scripts/nexus-firewall" "$TARGET_DIR/scripts/nexus-banner.sh" "$TARGET_DIR/scripts/update.sh"
+chmod +x "$TARGET_DIR/scripts/nexus-firewall" "$TARGET_DIR/scripts/nexus-banner.sh" "$TARGET_DIR/scripts/update.sh" "$TARGET_DIR/scripts/nexus-cluster"
+chmod +x "$TARGET_DIR"/scripts/cluster/*.sh 2>/dev/null || true
 ln -sf "$TARGET_DIR/scripts/nexus-firewall" /usr/local/bin/nexus-firewall
 ln -sf "$TARGET_DIR/scripts/nexus-banner.sh" /usr/local/bin/nexus-banner
 ln -sf "$TARGET_DIR/scripts/update.sh" /usr/local/bin/nexus-update
+ln -sf "$TARGET_DIR/scripts/nexus-cluster" /usr/local/bin/nexus-cluster
 
 # Bannière interactive lors de chaque connexion terminal (SSH / Console)
 cat << 'EOF' > /etc/profile.d/nexus-motd.sh

scripts/cluster/check_asterisk.sh

@@ -3,22 +3,22 @@
 # NexusPBX HA - Script de surveillance de santé d'Asterisk pour Keepalived VRRP
 # ==============================================================================
 set -euo pipefail
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$PATH"
 
 # 1. Vérifie si le binaire et le démon asterisk tournent
 if ! pidof asterisk >/dev/null 2>&1; then
     exit 1
 fi
 
-# 2. Teste si Asterisk répond aux requêtes AMI/CLI (core ping)
-PING_RESP=$(asterisk -rx "core ping" 2>/dev/null || true)
+# 2. Teste si Asterisk répond aux requêtes CLI (core ping)
+PING_RESP=$(/usr/sbin/asterisk -rx "core ping" 2>/dev/null || true)
 if echo "$PING_RESP" | grep -q "Pong"; then
     exit 0
 fi
 
 # 3. Tentative alternative via core show version
-if asterisk -rx "core show version" >/dev/null 2>&1; then
+if /usr/sbin/asterisk -rx "core show version" >/dev/null 2>&1; then
     exit 0
 fi
 
 exit 1
-

scripts/cluster/notify_backup.sh

@@ -3,6 +3,7 @@
 # NexusPBX HA - Notification Keepalived : Transition vers l'état BACKUP / STANDBY
 # ==============================================================================
 set -euo pipefail
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$PATH"
 
 LOG_FILE="/var/log/nexus_cluster.log"
 TIMESTAMP=$(date '+%Y-%m-%d %H:%M:%S')
@@ -15,6 +16,13 @@ if [ -f "$DB_PATH" ]; then
     sqlite3 "$DB_PATH" "UPDATE cluster_settings SET last_sync_status='standby_idle', updated_at=CURRENT_TIMESTAMP WHERE id=1;" 2>/dev/null || true
 fi
 
+# 2. Désenregistrement des Trunks PJSIP pour éviter les conflits d'appels entrants avec le Master
+if pidof asterisk >/dev/null 2>&1; then
+    /usr/sbin/asterisk -rx "pjsip send unregister *" >> "$LOG_FILE" 2>&1 || true
+    for reg in $(/usr/sbin/asterisk -rx "pjsip show registrations" 2>/dev/null | grep -o '[a-zA-Z0-9_\-]*-reg' | sort -u); do
+        /usr/sbin/asterisk -rx "pjsip send unregister $reg" >> "$LOG_FILE" 2>&1 || true
+    done
+fi
+
 echo "[$TIMESTAMP] [CLUSTER] Mode Standby actif. En écoute des battements de cœur VRRP." >> "$LOG_FILE"
 exit 0
-

scripts/cluster/notify_fault.sh

@@ -3,6 +3,7 @@
 # NexusPBX HA - Notification Keepalived : Transition vers l'état FAULT / ERREUR
 # ==============================================================================
 set -euo pipefail
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$PATH"
 
 LOG_FILE="/var/log/nexus_cluster.log"
 TIMESTAMP=$(date '+%Y-%m-%d %H:%M:%S')
@@ -15,4 +16,3 @@ if [ -f "$DB_PATH" ]; then
 fi
 
 exit 0
-

scripts/cluster/notify_master.sh

@@ -3,6 +3,7 @@
 # NexusPBX HA - Notification Keepalived : Transition vers l'état MASTER
 # ==============================================================================
 set -euo pipefail
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$PATH"
 
 LOG_FILE="/var/log/nexus_cluster.log"
 TIMESTAMP=$(date '+%Y-%m-%d %H:%M:%S')
@@ -17,8 +18,12 @@ fi
 
 # 2. Réactivation des enregistrements Trunks PJSIP et rechargement de la config
 if pidof asterisk >/dev/null 2>&1; then
-    asterisk -rx "pjsip reload" >> "$LOG_FILE" 2>&1 || true
-    asterisk -rx "dialplan reload" >> "$LOG_FILE" 2>&1 || true
+    /usr/sbin/asterisk -rx "pjsip reload" >> "$LOG_FILE" 2>&1 || true
+    /usr/sbin/asterisk -rx "pjsip send register *" >> "$LOG_FILE" 2>&1 || true
+    for reg in $(/usr/sbin/asterisk -rx "pjsip show registrations" 2>/dev/null | grep -o '[a-zA-Z0-9_\-]*-reg' | sort -u); do
+        /usr/sbin/asterisk -rx "pjsip send register $reg" >> "$LOG_FILE" 2>&1 || true
+    done
+    /usr/sbin/asterisk -rx "dialplan reload" >> "$LOG_FILE" 2>&1 || true
 fi
 
 # 3. Gratuitous ARP optionnel si arping est présent
@@ -30,4 +35,3 @@ fi
 
 echo "[$TIMESTAMP] [CLUSTER] Prise de relais MASTER terminée avec succès." >> "$LOG_FILE"
 exit 0
-

scripts/nexus-cluster

@@ -0,0 +1,79 @@
+#!/usr/bin/env bash
+# ==============================================================================
+# NexusPBX HA - Script Helper Root pour l'orchestration Keepalived
+# ==============================================================================
+set -euo pipefail
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:$PATH"
+
+CMD="${1:-status}"
+
+case "$CMD" in
+    apply)
+        # 1. Activation kernel sysctl pour liaison IP non-locale (indispensable HA)
+        sysctl -w net.ipv4.ip_nonlocal_bind=1 >/dev/null 2>&1 || true
+        if [ ! -f /etc/sysctl.d/99-nexus-ha.conf ]; then
+            echo "net.ipv4.ip_nonlocal_bind=1" > /etc/sysctl.d/99-nexus-ha.conf 2>/dev/null || true
+        fi
+
+        # 2. Vérification et installation éventuelle de Keepalived
+        if ! command -v keepalived >/dev/null 2>&1; then
+            apt-get update -qq && apt-get install -y -qq keepalived >/dev/null 2>&1 || true
+        fi
+
+        # 3. Création et sécurisation stricte du dossier des scripts Keepalived (exigences strictes Keepalived 2.x)
+        mkdir -p /etc/keepalived/scripts
+        if [ -d "/var/www/nexus-pbx/scripts/cluster" ]; then
+            cp -f /var/www/nexus-pbx/scripts/cluster/*.sh /etc/keepalived/scripts/ 2>/dev/null || true
+        fi
+        chown -R root:root /etc/keepalived
+        chmod 755 /etc/keepalived
+        chmod 755 /etc/keepalived/scripts
+        chmod 755 /etc/keepalived/scripts/*.sh 2>/dev/null || true
+
+        # 4. Déploiement de la configuration générée depuis /tmp
+        if [ -f "/tmp/keepalived.conf.tmp" ]; then
+            cp -f /tmp/keepalived.conf.tmp /etc/keepalived/keepalived.conf
+            chown root:root /etc/keepalived/keepalived.conf
+            chmod 644 /etc/keepalived/keepalived.conf
+            rm -f /tmp/keepalived.conf.tmp
+        fi
+
+        # Fichier journal du cluster accessible en écriture
+        touch /var/log/nexus_cluster.log
+        chmod 666 /var/log/nexus_cluster.log
+
+        # 5. Activation et démarrage du service
+        systemctl daemon-reload
+        systemctl unmask keepalived >/dev/null 2>&1 || true
+        systemctl enable keepalived >/dev/null 2>&1 || true
+        systemctl restart keepalived
+        echo "KEEPALIVED_APPLIED_OK"
+        ;;
+
+    stop)
+        systemctl stop keepalived >/dev/null 2>&1 || true
+        systemctl disable keepalived >/dev/null 2>&1 || true
+        echo "KEEPALIVED_STOPPED_OK"
+        ;;
+
+    status)
+        if systemctl is-active --quiet keepalived 2>/dev/null; then
+            echo "RUNNING"
+        else
+            echo "STOPPED"
+        fi
+        ;;
+
+    check)
+        if pidof asterisk >/dev/null 2>&1 && /usr/sbin/asterisk -rx "core ping" 2>/dev/null | grep -q "Pong"; then
+            echo "HEALTHY"
+        else
+            echo "DEGRADED"
+        fi
+        ;;
+
+    *)
+        echo "Usage: $0 {apply|stop|status|check}"
+        exit 1
+        ;;
+esac

src/ClusterManager.php

@@ -16,6 +16,7 @@ class ClusterManager
     private PDO $db;
     public const KEEPALIVED_CONF_PATH = '/etc/keepalived/keepalived.conf';
     public const CLUSTER_LOG_PATH     = '/var/log/nexus_cluster.log';
+    public const CLUSTER_HELPER_PATH  = '/var/www/nexus-pbx/scripts/nexus-cluster';
 
     public function __construct(?PDO $db = null)
     {
@@ -75,6 +76,22 @@ class ClusterManager
             throw new InvalidArgumentException("L'adresse IP Virtuelle partagée (VIP) est requise pour activer le cluster HA.");
         }
 
+        // Empêcher l'utilisateur de configurer l'IP locale de ce serveur comme IP du pair
+        if ($peerIp !== '') {
+            $localInterfaces = $this->detectNetworkInterfaces();
+            foreach ($localInterfaces as $ifaceInfo) {
+                if (($ifaceInfo['primary'] ?? '') === $peerIp) {
+                    throw new InvalidArgumentException("L'adresse IP du pair ({$peerIp}) correspond à l'adresse locale de cette machine ! Veuillez renseigner l'IP du second nœud.");
+                }
+                foreach ($ifaceInfo['ips'] ?? [] as $cidr) {
+                    $ipOnly = explode('/', $cidr)[0] ?? '';
+                    if ($ipOnly === $peerIp) {
+                        throw new InvalidArgumentException("L'adresse IP du pair ({$peerIp}) correspond à l'adresse locale de cette machine ! Veuillez renseigner l'IP du second nœud.");
+                    }
+                }
+            }
+        }
+
         $stmt = $this->db->prepare('
             UPDATE cluster_settings SET
                 enabled = :enabled,
@@ -106,12 +123,12 @@ class ClusterManager
             ':auto_sync' => $autoSync,
         ]);
 
-        // Application automatique de la configuration Keepalived si demandé
+        // Application automatique de la configuration Keepalived
         $applyResult = $this->applyKeepalivedConfig();
 
         return [
             'success'      => true,
-            'message'      => 'Configuration Haute Disponibilité enregistrée.',
+            'message'      => 'Configuration Haute Disponibilité enregistrée et appliquée.',
             'apply_result' => $applyResult,
         ];
     }
@@ -129,14 +146,13 @@ class ClusterManager
             if ($line === '') {
                 continue;
             }
-            // Format typique ip -o: "2: eth0    inet 10.10.0.4/16 brd 10.10.255.255 scope global eth0\..."
             if (preg_match('/^\d+:\s+([a-zA-Z0-9_\-\.]+)\s+inet\s+([0-9.]+)\/(\d+)/', $line, $matches)) {
                 $iface = $matches[1];
                 $ip    = $matches[2];
                 $mask  = $matches[3];
 
                 if ($iface === 'lo') {
-                    continue; // Ignorer loopback
+                    continue;
                 }
 
                 if (!isset($interfaces[$iface])) {
@@ -162,9 +178,13 @@ class ClusterManager
         if ($vip === '') {
             return false;
         }
-        $escapedVip = escapeshellarg($vip);
-        $output = shell_exec("ip addr show 2>/dev/null | grep -F " . $escapedVip) ?: '';
-        return trim($output) !== '';
+        $output = shell_exec('ip -o -4 addr show 2>/dev/null') ?: '';
+        foreach (preg_split('/\r?\n/', $output) ?: [] as $line) {
+            if (preg_match('/\sinet\s+' . preg_quote($vip, '/') . '\//', $line)) {
+                return true;
+            }
+        }
+        return false;
     }
 
     /**
@@ -177,19 +197,23 @@ class ClusterManager
         $peerIp = $settings['peer_ip'] ?? '';
         $isVipActive = $this->isVirtualIpActive($vip);
 
-        // 1. Vérification de Keepalived
+        // 1. Statut Keepalived
         $keepalivedInstalled = !empty(shell_exec('command -v keepalived 2>/dev/null'));
         $keepalivedRunning = false;
         if ($keepalivedInstalled) {
-            $psOut = shell_exec('pidof keepalived 2>/dev/null') ?: '';
-            $keepalivedRunning = trim($psOut) !== '';
+            $helperStatus = trim((string)shell_exec('sudo -n ' . escapeshellcmd(self::CLUSTER_HELPER_PATH) . ' status 2>/dev/null'));
+            if ($helperStatus === 'RUNNING' || trim((string)shell_exec('pidof keepalived 2>/dev/null')) !== '') {
+                $keepalivedRunning = true;
+            }
         }
 
-        // 2. Vérification d'Asterisk
+        // 2. Statut Asterisk
         $asteriskRunning = trim((string)shell_exec('pidof asterisk 2>/dev/null')) !== '';
         $asteriskPing = false;
         if ($asteriskRunning) {
-            $pingOut = shell_exec("asterisk -rx 'core ping' 2>/dev/null") ?: '';
+            $pingOut = shell_exec("asterisk -rx 'core ping' 2>/dev/null") 
+                    ?: shell_exec("sudo -n /usr/sbin/asterisk -rx 'core ping' 2>/dev/null") 
+                    ?: '';
             $asteriskPing = str_contains($pingOut, 'Pong');
         }
 
@@ -207,7 +231,7 @@ class ClusterManager
             }
         }
 
-        // Rôle réel effectif
+        // 4. Rôle effectif
         $effectiveState = 'STANDALONE';
         if (!empty($settings['enabled'])) {
             if ($isVipActive) {
@@ -217,7 +241,7 @@ class ClusterManager
             }
         }
 
-        // Dernières lignes du log cluster
+        // 5. Dernières lignes de journalisation HA
         $recentLogs = [];
         if (file_exists(self::CLUSTER_LOG_PATH)) {
             $lines = file(self::CLUSTER_LOG_PATH, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) ?: [];
@@ -256,10 +280,20 @@ class ClusterManager
         $iface          = $settings['interface'] ?? 'eth0';
         $vip            = $settings['virtual_ip'] ?? '';
         $vmask          = $settings['virtual_netmask'] ?? '24';
+        $peerIp         = trim((string)($settings['peer_ip'] ?? ''));
         $vrid           = (int)($settings['vrid'] ?? 51);
         $prio           = (int)($settings['priority'] ?? ($role === 'MASTER' ? 100 : 90));
         $secret         = substr($settings['cluster_secret'] ?? 'NexusPBX', 0, 8); // Keepalived max 8 chars auth_pass
 
+        // Détection de l'IP locale sur l'interface pour unicast VRRP
+        $localIp = '';
+        foreach ($this->detectNetworkInterfaces() as $net) {
+            if ($net['name'] === $iface) {
+                $localIp = $net['primary'] ?? '';
+                break;
+            }
+        }
+
         $conf = [];
         $conf[] = "! ==============================================================================";
         $conf[] = "! Configuration Keepalived générée automatiquement par NexusPBX HA";
@@ -273,7 +307,7 @@ class ClusterManager
         $conf[] = "}";
         $conf[] = "";
         $conf[] = "vrrp_script chk_asterisk {";
-        $conf[] = "    script \"/var/www/nexus-pbx/scripts/cluster/check_asterisk.sh\"";
+        $conf[] = "    script \"/etc/keepalived/scripts/check_asterisk.sh\"";
         $conf[] = "    interval 2";
         $conf[] = "    weight 2";
         $conf[] = "    fall 2";
@@ -287,6 +321,16 @@ class ClusterManager
         $conf[] = "    priority {$prio}";
         $conf[] = "    advert_int 1";
         $conf[] = "";
+
+        // Unicast VRRP si l'IP du nœud pair est configurée (indispensable en environnement virtualisé type Proxmox/VMware)
+        if ($peerIp !== '' && $localIp !== '') {
+            $conf[] = "    unicast_src_ip {$localIp}";
+            $conf[] = "    unicast_peer {";
+            $conf[] = "        {$peerIp}";
+            $conf[] = "    }";
+            $conf[] = "";
+        }
+
         $conf[] = "    authentication {";
         $conf[] = "        auth_type PASS";
         $conf[] = "        auth_pass {$secret}";
@@ -300,9 +344,9 @@ class ClusterManager
         $conf[] = "        chk_asterisk";
         $conf[] = "    }";
         $conf[] = "";
-        $conf[] = "    notify_master \"/var/www/nexus-pbx/scripts/cluster/notify_master.sh\"";
-        $conf[] = "    notify_backup \"/var/www/nexus-pbx/scripts/cluster/notify_backup.sh\"";
-        $conf[] = "    notify_fault  \"/var/www/nexus-pbx/scripts/cluster/notify_fault.sh\"";
+        $conf[] = "    notify_master \"/etc/keepalived/scripts/notify_master.sh\"";
+        $conf[] = "    notify_backup \"/etc/keepalived/scripts/notify_backup.sh\"";
+        $conf[] = "    notify_fault  \"/etc/keepalived/scripts/notify_fault.sh\"";
         $conf[] = "}";
         $conf[] = "";
 
@@ -310,7 +354,7 @@ class ClusterManager
     }
 
     /**
-     * Applique la configuration Keepalived sur le système Linux
+     * Applique la configuration Keepalived sur le système Linux via le helper root
      */
     public function applyKeepalivedConfig(): array
     {
@@ -318,9 +362,7 @@ class ClusterManager
         $enabled = !empty($settings['enabled']);
 
         if (!$enabled) {
-            // Désactivation du service Keepalived si le cluster est désactivé
-            shell_exec('systemctl stop keepalived 2>/dev/null || true');
-            shell_exec('systemctl disable keepalived 2>/dev/null || true');
+            shell_exec('sudo -n ' . escapeshellcmd(self::CLUSTER_HELPER_PATH) . ' stop 2>&1');
             return [
                 'status'  => 'disabled',
                 'message' => 'Cluster HA désactivé (service Keepalived stoppé).',
@@ -335,23 +377,21 @@ class ClusterManager
         }
 
         $confContent = $this->generateKeepalivedConfig();
-        if (!is_dir('/etc/keepalived')) {
-            mkdir('/etc/keepalived', 0755, true);
+        file_put_contents('/tmp/keepalived.conf.tmp', $confContent);
+        chmod('/tmp/keepalived.conf.tmp', 0644);
+
+        $out = trim((string)shell_exec('sudo -n ' . escapeshellcmd(self::CLUSTER_HELPER_PATH) . ' apply 2>&1'));
+
+        if (!str_contains($out, 'KEEPALIVED_APPLIED_OK')) {
+            return [
+                'status'  => 'warning',
+                'message' => 'Configuration transmise mais le démarrage a retourné : ' . ($out ?: 'Erreur inconnue'),
+            ];
         }
 
-        file_put_contents(self::KEEPALIVED_CONF_PATH, $confContent);
-        chmod(self::KEEPALIVED_CONF_PATH, 0600);
-
-        // S'assure que les scripts de cluster sont bien exécutables
-        shell_exec('chmod +x /var/www/nexus-pbx/scripts/cluster/*.sh 2>/dev/null || true');
-
-        // Activation et rechargement / démarrage de Keepalived
-        shell_exec('systemctl enable keepalived 2>/dev/null || true');
-        shell_exec('systemctl restart keepalived 2>/dev/null || true');
-
         return [
             'status'  => 'active',
-            'message' => 'Configuration Keepalived générée et service redémarré avec succès.',
+            'message' => 'Configuration Keepalived générée et service activé avec succès.',
         ];
     }
 
@@ -368,13 +408,24 @@ class ClusterManager
             throw new RuntimeException("L'adresse IP du Nœud pair (Peer IP) n'est pas configurée.");
         }
 
-        // Création du paquet de données en mémoire ou fichier temporaire
+        // Port d'administration HTTPS configuré
+        $adminPort = 8443;
+        try {
+            $st = $this->db->query("SELECT admin_https_port FROM settings WHERE id = 1")->fetch(PDO::FETCH_ASSOC);
+            if (!empty($st['admin_https_port'])) {
+                $adminPort = (int)$st['admin_https_port'];
+            }
+        } catch (\Throwable $e) {
+            $adminPort = 8443;
+        }
+
+        // Création de l'archive de réplication
         $dbPath = Database::getDatabasePath();
         if (!file_exists($dbPath)) {
             throw new RuntimeException("Fichier de base de données introuvable : {$dbPath}");
         }
 
-        // Forcer le checkpoint SQLite WAL pour avoir un dump 100% à jour
+        // Forcer le checkpoint SQLite WAL pour un dump intègre
         $this->db->exec('PRAGMA wal_checkpoint(FULL);');
 
         $tmpArchive = '/tmp/nexus_cluster_sync_' . time() . '.tar.gz';
@@ -393,39 +444,63 @@ class ClusterManager
         @unlink($tmpArchive);
 
         $payload = [
-            'timestamp'  => time(),
+            'timestamp'   => time(),
             'archive_b64' => base64_encode($archiveData),
         ];
 
-        $signature = hash_hmac('sha256', json_encode($payload), $secret);
+        $jsonPayload = json_encode($payload);
+        $signature = hash_hmac('sha256', $jsonPayload, $secret);
 
-        $ch = curl_init("http://{$peerIp}/api.php?action=cluster_receive_sync");
-        curl_setopt($ch, CURLOPT_POST, true);
-        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
-        curl_setopt($ch, CURLOPT_HTTPHEADER, [
-            'Content-Type: application/json',
-            'X-Nexus-Cluster-Signature: ' . $signature,
-        ]);
-        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
-        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
-        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
+        // URLs d'accès candidates vers l'API du second nœud
+        $candidateUrls = [
+            "https://{$peerIp}:{$adminPort}/api.php?action=cluster_receive_sync",
+        ];
+        if ($adminPort !== 443) {
+            $candidateUrls[] = "https://{$peerIp}/api.php?action=cluster_receive_sync";
+        }
+        if ($adminPort !== 8443) {
+            $candidateUrls[] = "https://{$peerIp}:8443/api.php?action=cluster_receive_sync";
+        }
+        $candidateUrls[] = "http://{$peerIp}/api.php?action=cluster_receive_sync";
+        $candidateUrls = array_values(array_unique($candidateUrls));
 
-        $response = curl_exec($ch);
-        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
-        $err = curl_error($ch);
-        curl_close($ch);
+        $lastError = '';
+        $success = false;
 
-        if ($httpCode !== 200 || !empty($err)) {
-            $errorMsg = "Échec d'envoi vers le pair {$peerIp} (HTTP {$httpCode}) : {$err}";
-            $this->updateSyncStatus('error', $errorMsg);
-            throw new RuntimeException($errorMsg);
+        foreach ($candidateUrls as $targetUrl) {
+            $ch = curl_init($targetUrl);
+            curl_setopt($ch, CURLOPT_POST, true);
+            curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonPayload);
+            curl_setopt($ch, CURLOPT_HTTPHEADER, [
+                'Content-Type: application/json',
+                'X-Nexus-Cluster-Signature: ' . $signature,
+            ]);
+            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
+            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
+            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 4);
+            curl_setopt($ch, CURLOPT_TIMEOUT, 30);
+
+            $response = curl_exec($ch);
+            $httpCode = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);
+            $err = curl_error($ch);
+            curl_close($ch);
+
+            if ($httpCode === 200 && !empty($response)) {
+                $resJson = json_decode((string)$response, true);
+                if (!empty($resJson['success'])) {
+                    $success = true;
+                    break;
+                }
+                $lastError = "Rejet par le pair ({$targetUrl}) : " . ($resJson['message'] ?? $resJson['error'] ?? 'Erreur inconnue');
+            } else {
+                $lastError = "Échec d'envoi vers {$targetUrl} (HTTP {$httpCode})" . ($err ? " : {$err}" : "");
+            }
         }
 
-        $resJson = json_decode((string)$response, true);
-        if (empty($resJson['success'])) {
-            $errorMsg = "Le pair a rejeté la réplication : " . ($resJson['error'] ?? 'Erreur inconnue');
-            $this->updateSyncStatus('error', $errorMsg);
-            throw new RuntimeException($errorMsg);
+        if (!$success) {
+            $this->updateSyncStatus('error', $lastError);
+            throw new RuntimeException($lastError);
         }
 
         $this->updateSyncStatus('success', "Synchronisation réussie avec le nœud {$peerIp}");
@@ -463,13 +538,20 @@ class ClusterManager
         $tmpArchive = '/tmp/nexus_cluster_recv_' . time() . '.tar.gz';
         file_put_contents($tmpArchive, $archiveRaw);
 
-        // Sauvegarde d'urgence de la DB actuelle avant écrasement
+        // Sauvegarde d'urgence de la base actuelle avant écrasement
         $dbPath = Database::getDatabasePath();
         if (file_exists($dbPath)) {
             copy($dbPath, $dbPath . '.pre_cluster_sync.bak');
         }
 
-        // Fermeture de la connexion PDO pour libérer les verrous SQLite
+        // Sauvegarder la configuration locale cluster et réseau pour ne pas l'écraser par celle du master
+        $localClusterSettings = $settings;
+        $localSettingsRow = null;
+        try {
+            $localSettingsRow = $this->db->query("SELECT local_net, local_networks_json, admin_https_port FROM settings WHERE id = 1")->fetch(PDO::FETCH_ASSOC);
+        } catch (\Throwable $e) {}
+
+        // Libérer les verrous PDO SQLite
         Database::resetConnection();
 
         // Extraction de l'archive
@@ -479,18 +561,60 @@ class ClusterManager
         }
         @unlink($tmpArchive);
 
-        // Réouverture de la connexion DB et régénération des configs Asterisk
+        // Réouverture de la connexion DB
         $newDb = Database::getConnection();
         $this->db = $newDb;
 
-        // Préserver le rôle local configuré (pour ne pas qu'un master force l'esclave à se croire master)
-        $localRole = $settings['role'] ?? 'backup';
-        $newDb->exec("UPDATE cluster_settings SET role = '{$localRole}', last_sync_at = CURRENT_TIMESTAMP, last_sync_status = 'synced', last_sync_message = 'Base et sons synchronisés depuis le Master' WHERE id = 1");
+        // Restauration de l'identité cluster et réseau propre à CE serveur
+        $updateStmt = $newDb->prepare('
+            UPDATE cluster_settings SET
+                role              = :role,
+                interface         = :iface,
+                peer_ip           = :peer_ip,
+                priority          = :priority,
+                virtual_ip        = :virtual_ip,
+                virtual_netmask   = :virtual_netmask,
+                vrid              = :vrid,
+                last_sync_at      = CURRENT_TIMESTAMP,
+                last_sync_status  = :status,
+                last_sync_message = :msg
+            WHERE id = 1
+        ');
+        $updateStmt->execute([
+            ':role'            => $localClusterSettings['role'] ?? 'backup',
+            ':iface'           => $localClusterSettings['interface'] ?? 'eth0',
+            ':peer_ip'         => $localClusterSettings['peer_ip'] ?? '',
+            ':priority'        => $localClusterSettings['priority'] ?? 90,
+            ':virtual_ip'      => $localClusterSettings['virtual_ip'] ?? '',
+            ':virtual_netmask' => $localClusterSettings['virtual_netmask'] ?? '24',
+            ':vrid'            => $localClusterSettings['vrid'] ?? 51,
+            ':status'          => 'synced',
+            ':msg'             => 'Base et sons synchronisés depuis le Master',
+        ]);
+
+        if ($localSettingsRow) {
+            $newDb->prepare('
+                UPDATE settings SET
+                    local_net           = :net,
+                    local_networks_json = :nets,
+                    admin_https_port    = :port
+                WHERE id = 1
+            ')->execute([
+                ':net'  => $localSettingsRow['local_net'] ?? '192.168.1.0/24',
+                ':nets' => $localSettingsRow['local_networks_json'] ?? '["192.168.1.0/24"]',
+                ':port' => $localSettingsRow['admin_https_port'] ?? 8443,
+            ]);
+        }
 
         // Régénérer les configurations PJSIP et Asterisk
         $generator = new ConfigGenerator($newDb);
         $generator->generateAndApply();
 
+        // Si le cluster est actif, actualiser le service Keepalived
+        if (!empty($localClusterSettings['enabled'])) {
+            $this->applyKeepalivedConfig();
+        }
+
         return [
             'success' => true,
             'message' => 'Base de données et fichiers audio appliqués avec succès.',
@@ -525,4 +649,3 @@ class ClusterManager
         $stmt->execute([':status' => $status, ':msg' => $message]);
     }
 }
-