improve log system

debian/set_static_ip.sh

@@ -14,12 +14,37 @@ DEFAULT_GATEWAY="${GATEWAY_ENV:-10.10.0.1}"  # Use GATEWAY_ENV if provided, othe
 DNS_SERVERS="8.8.8.8 8.8.4.4"
 LOG_FILE="/var/log/set_static_ip.log"
 NETPLAN_DIR="/etc/netplan"
+MAX_LOG_SIZE_KB=1024  # 1MB
 
-# --- Functions ---
+# --- Funções Auxiliares ---
 
-# Function to log messages
+# Função de Log (modificada para usar logger)
 log() {
-    echo "$(date '+%Y-%m-%d %H:%M:%S') - $1" | tee -a "$LOG_FILE"
+    local message="$1"
+    local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
+
+    # Escreve no ficheiro de log
+    echo "$timestamp: $message" | tee -a "$LOG_FILE"
+
+    # Envia para o syslog (opcional)
+    logger -t "set_static_ip" "$message"
+}
+
+# Função para limitar o tamanho do log
+limit_log_size() {
+    local log_file="$1"
+    local max_size_kb="$2"
+    local max_size_bytes=$((max_size_kb * 1024))
+
+    if [ -f "$log_file" ]; then
+        local current_size=$(stat -c %s "$log_file" 2>/dev/null || wc -c < "$log_file" 2>/dev/null)
+
+        if [ "$current_size" -gt "$max_size_bytes" ]; then
+            log "Aviso: Ficheiro de log $log_file excedeu $max_size_kb KB. A truncar..."
+            tail -n 500 "$log_file" > "${log_file}.tmp" && mv "${log_file}.tmp" "$log_file"
+            log "Ficheiro de log truncado. As últimas 500 linhas foram mantidas."
+        fi
+    fi
 }
 
 # Function to fix netplan permissions
@@ -231,8 +256,8 @@ configure_static_ip() {
     local interface
     local dns="$DNS_SERVERS"
 
-    # Create log directory if it doesn't exist
-    mkdir -p /var/log
+    mkdir -p "$(dirname "$LOG_FILE")"
+    limit_log_size "$LOG_FILE" "$MAX_LOG_SIZE_KB"  # Verifica o tamanho do log no início
 
     # Get active interface
     if ! interface=$(get_active_interface); then