MonitoraggioTenant/watcher.py
2025-07-01 18:05:03 +02:00

101 lines
3.3 KiB
Python

import os
import smtplib
import yaml
import psutil
import threading
import time
from flask import Flask, render_template
from email.mime.text import MIMEText
import subprocess
app = Flask(__name__)
# Load configuration
try:
with open("config.yaml") as f:
config = yaml.safe_load(f)
print("[DEBUG] Loaded config.yaml successfully.")
except Exception as e:
print(f"[ERROR] Failed to load config.yaml: {e}")
exit(1)
results = {}
def get_folder_size(path):
print(f"[DEBUG] Calculating size for: {path}")
try:
out = subprocess.check_output(["du", "-sb", path], timeout=60)
size_bytes = int(out.decode().split()[0])
print(f"[DEBUG] Total size for {path}: {size_bytes / 1e9:.2f} GB")
return size_bytes
except Exception as e:
print(f"[ERROR] Failed to get size for {path}: {e}")
return 0
def send_alert(folder, used, limit):
print(f"[ALERT] Sending email for {folder}: used={used}, limit={limit}")
try:
msg = MIMEText(f"Folder {folder} is over limit: {used / 1e9:.2f} GB used of {limit / 1e9:.2f} GB")
msg['Subject'] = f"[ALERT] Disk usage for {folder}"
msg['From'] = config['email']['from']
msg['To'] = config['email']['to']
with smtplib.SMTP(config['email']['smtp_server'], config['email']['smtp_port']) as s:
s.starttls()
s.login(config['email']['username'], config['email']['password'])
s.send_message(msg)
print(f"[INFO] Email alert sent for {folder}")
except Exception as e:
print(f"[ERROR] Failed to send email alert: {e}")
def check_folders():
print("[INFO] Running folder usage check...")
new_results = {}
for folder, limit_str in config['folders'].items():
if not os.path.exists(folder):
print(f"[WARN] Folder does not exist: {folder}")
continue
try:
limit = int(limit_str.replace("GB", "").strip()) * 1024 ** 3
used = get_folder_size(folder)
exceeded = used > limit
new_results[folder] = {
"used_bytes": used,
"limit_bytes": limit,
"used_gb": used / (1024 ** 3),
"limit_gb": limit / (1024 ** 3),
"exceeded": exceeded
}
if exceeded:
send_alert(folder, used, limit)
except Exception as e:
print(f"[ERROR] Failed to check folder {folder}: {e}")
results.clear()
results.update(new_results)
def schedule_check(interval_sec):
def loop():
while True:
check_folders()
time.sleep(interval_sec)
t = threading.Thread(target=loop, daemon=True)
t.start()
@app.route("/")
def index():
import datetime
return render_template("index.html", results=results, now=datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'))
if __name__ == "__main__":
interval = config.get("schedule", {}).get("seconds", 86400) # default 5 minutes
print(f"[INFO] Starting scheduled checks every {interval} seconds.")
schedule_check(interval)
if config.get("webui", {}).get("enabled", False):
port = config["webui"].get("port", 8080)
print(f"[INFO] Starting Flask Web UI on port {port}")
app.run(host="0.0.0.0", port=port)
else:
print("[INFO] Web UI disabled or missing from config.")