Modif watchdog relevé uniquement par mail
This commit is contained in:
@@ -1,39 +1,31 @@
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#!/home/debian/Gestion_sondes/myenv/bin/python3
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# Surveillance de l'arrivée des relevés (par table/site) + SMS d'alerte / retour à la normale
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from datetime import datetime, timedelta
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from dotenv import load_dotenv
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import os
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import utils_db
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import logging
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from utils_sms import envoyer_sms
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# Dossier Logs
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import mysql.connector # important pour cibler les exceptions MySQL
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import utils_db
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from utils_mail import envoyer_mail
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# -------------------- LOGS --------------------
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LOG_DIR = '/home/debian/Gestion_sondes/Logs'
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os.makedirs(LOG_DIR, exist_ok=True)
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# Fichier de log (nommé par date)
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log_filename = os.path.join(LOG_DIR, datetime.now().strftime("surveillance_%Y-%m-%d.log"))
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(levelname)s - %(message)s',
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handlers=[
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logging.FileHandler(log_filename),
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logging.StreamHandler() # Affiche aussi les logs dans la console
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]
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handlers=[logging.FileHandler(log_filename), logging.StreamHandler()]
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)
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# Charger .env
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# -------------------- ENV --------------------
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load_dotenv('/home/debian/Gestion_sondes/.env')
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# OVH SMS
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APP_KEY = os.getenv('OVH_APPLICATION_KEY')
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APP_SECRET = os.getenv('OVH_APPLICATION_SECRET')
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CONSUMER_KEY = os.getenv('OVH_CONSUMER_KEY')
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SERVICE_NAME = os.getenv('OVH_SMS_SERVICE')
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SMS_RECEIVER = os.getenv('SMS_RECEIVER')
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SMS_SENDER = os.getenv('OVH_SMS_SENDER')
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# -------------------- PARAMETRES --------------------
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tables = ['Saclay', 'Meudon']
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DELAI_MINUTES = 15
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RAPPEL_HEURES = 6
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@@ -41,61 +33,128 @@ RAPPEL_HEURES = 6
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STATE_DIR = '/tmp/surveillance_states'
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os.makedirs(STATE_DIR, exist_ok=True)
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def should_send_alert(site):
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state_file = os.path.join(STATE_DIR, f'{site}.state')
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TABLES_SET = set(tables) # whitelist simple
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def _state_file(site: str) -> str:
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return os.path.join(STATE_DIR, f'{site}.state')
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def should_send_alert(site: str) -> bool:
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"""
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Retourne True si on doit envoyer une alerte maintenant (première fois ou rappel).
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Met à jour le fichier d'état en cas d'envoi.
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"""
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sf = _state_file(site)
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now = datetime.now()
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if not os.path.exists(state_file):
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with open(state_file, 'w') as f:
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f.write(now.isoformat())
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if not os.path.exists(sf):
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# première alerte
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try:
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with open(sf, 'w') as f:
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f.write(now.isoformat())
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except OSError as e:
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logging.warning(f"Impossible d'écrire l'état {sf} : {e} (on alerte quand même).")
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return True
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with open(state_file, 'r') as f:
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last_alert = datetime.fromisoformat(f.read().strip())
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try:
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with open(sf, 'r') as f:
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raw = f.read().strip()
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last_alert = datetime.fromisoformat(raw)
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except (OSError, ValueError) as e:
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# état illisible/corrompu -> on réinitialise et on alerte
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logging.warning(f"Etat corrompu pour {site} ({sf}) : {e}. Réinitialisation.")
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try:
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with open(sf, 'w') as f:
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f.write(now.isoformat())
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except OSError as e2:
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logging.warning(f"Impossible de réécrire l'état {sf} : {e2}")
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return True
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if now - last_alert >= timedelta(hours=RAPPEL_HEURES):
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with open(state_file, 'w') as f:
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f.write(now.isoformat())
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try:
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with open(sf, 'w') as f:
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f.write(now.isoformat())
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except OSError as e:
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logging.warning(f"Impossible de mettre à jour l'état {sf} : {e} (on alerte quand même).")
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return True
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return False
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def clear_state(site):
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state_file = os.path.join(STATE_DIR, f'{site}.state')
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if os.path.exists(state_file):
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os.remove(state_file)
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def clear_state(site: str) -> None:
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sf = _state_file(site)
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try:
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if os.path.exists(sf):
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os.remove(sf)
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except OSError as e:
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logging.warning(f"Impossible de supprimer l'état {sf} : {e}")
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def main():
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cnx = utils_db.connect_to_mysql() # ← appel via db_utils
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cursor = cnx.cursor()
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now = datetime.now()
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limite = now - timedelta(minutes=DELAI_MINUTES)
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problemes = []
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limite = datetime.now() - timedelta(minutes=DELAI_MINUTES)
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for table in tables:
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cursor.execute(f"SELECT MAX(Date) FROM {table}")
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result = cursor.fetchone()
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last_update = result[0]
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# 1) Connexion MySQL (une seule fois)
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try:
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cnx = utils_db.connect_to_mysql()
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cursor = cnx.cursor()
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except mysql.connector.Error as e:
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logging.error(f"MySQL KO : {e}")
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envoyer_mail("⚠️ ALERTE : Base MySQL inaccessible (surveillance impossible).")
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return
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if not last_update or last_update < limite:
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if should_send_alert(table):
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problemes.append(f"{table} (dernier relevé : {last_update})")
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# 2) Surveillance par table (try SQL à l'intérieur de la boucle)
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try:
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for table in tables:
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if table not in TABLES_SET:
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logging.warning(f"Table ignorée (non whitelistée) : {table}")
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continue
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# 2a) Lecture de la dernière date (erreurs SQL gérées finement)
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try:
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cursor.execute(f"SELECT MAX(Date) FROM `{table}`")
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(last_update,) = cursor.fetchone()
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except mysql.connector.Error as e:
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logging.error(f"Erreur SQL sur {table} : {e}")
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# Vous pouvez décider ici si vous voulez un SMS ou seulement un log.
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if should_send_alert(table):
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envoyer_mail(f"⚠️ ALERTE : erreur SQL sur {table} (voir logs).")
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continue
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# 2b) Logique métier (hors try SQL)
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if (last_update is None) or (last_update < limite):
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if should_send_alert(table):
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problemes.append(f"{table} (dernier relevé : {last_update})")
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logging.warning(f"⚠️ {table} en défaut (dernier relevé : {last_update})")
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else:
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logging.info(f"⏳ {table} déjà signalé, rappel dans {RAPPEL_HEURES}h.")
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else:
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logging.info(f"⏳ Problème déjà signalé pour {table}, attente du délai de rappel.")
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else:
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if os.path.exists(os.path.join(STATE_DIR, f'{table}.state')):
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message = f"✅ {table} : relevés à nouveau reçus. Situation normale."
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envoyer_sms(message)
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clear_state(table)
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logging.info(f"📩 SMS de retour à la normale envoyé pour {table}.")
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else:
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logging.info(f"✅ {table} OK (dernier relevé : {last_update})")
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# Retour à la normale uniquement si on était en défaut (state présent)
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if os.path.exists(_state_file(table)):
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message = f"✅ {table} : relevés à nouveau reçus (dernier : {last_update}). Situation normale."
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envoyer_mail(
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f"✅ OK : {table} relevés reçus",
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message
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)
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clear_state(table)
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logging.info(f"📩 Retour à la normale envoyé pour {table}.")
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else:
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logging.info(f"✅ {table} OK (dernier relevé : {last_update})")
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cursor.close()
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cnx.close()
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finally:
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# 3) Nettoyage MySQL
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try:
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cursor.close()
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cnx.close()
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except mysql.connector.Error:
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pass
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# 4) Alerte groupée si besoin
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if problemes:
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message = "⚠️ ALERTE : pas de relevés depuis >15min :\n" + "\n".join(problemes)
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envoyer_sms(message)
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message = f"⚠️ ALERTE : pas de relevés depuis >{DELAI_MINUTES}min :\n" + "\n".join(problemes)
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envoyer_mail(
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f"⚠️ ALERTE : absence de relevés > {DELAI_MINUTES} min",
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message
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)
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else:
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logging.info("👍 Tout est OK, aucun SMS envoyé.")
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logging.info("👍 Tout est OK, aucun Mail envoyé.")
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if __name__ == "__main__":
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main()
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73
app/utils_db.py
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73
app/utils_db.py
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@@ -0,0 +1,73 @@
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import mysql.connector
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from dotenv import load_dotenv
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import os
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load_dotenv()
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def connect_to_mysql():
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return mysql.connector.connect(
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host=os.getenv("DB_HOST"),
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user=os.getenv("DB_USER"),
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password=os.getenv("DB_PASS"),
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database=os.getenv("DB_NAME")
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)
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def get_latest_chaufferie():
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conn = connect_to_mysql()
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cursor = conn.cursor(dictionary=True)
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query = """
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SELECT Sonde, Temperature, Date, Topic
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FROM Sondes.Chaufferie
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WHERE Date >= NOW() - INTERVAL 5 MINUTE
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ORDER BY Date DESC \
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"""
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cursor.execute(query)
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result = cursor.fetchall()
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cursor.close()
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conn.close()
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return result
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def get_history_by_sonde(sonde):
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conn = connect_to_mysql()
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cursor = conn.cursor(dictionary=True)
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query = """
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SELECT Sonde, Temperature, Date
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FROM Sondes.Chaufferie
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WHERE Sonde = %s
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AND Date >= NOW() - INTERVAL 1 DAY \
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"""
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cursor.execute(query, (sonde,))
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result = cursor.fetchall()
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cursor.close()
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conn.close()
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return result
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def lire_alertes_sondes():
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conn = connect_to_mysql()
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cursor = conn.cursor(dictionary=True)
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query = """
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SELECT Id, Sonde, Debut_defaut, Etat
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FROM Sondes.Alertes_Chaufferie
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WHERE Etat != 'Acquitté'
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ORDER BY Debut_defaut DESC \
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"""
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cursor.execute(query)
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result = cursor.fetchall()
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cursor.close()
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conn.close()
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return result
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def acquitter_alerte(id_alerte):
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conn = connect_to_mysql()
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cursor = conn.cursor()
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query = "UPDATE Sondes.Alertes_Chaufferie SET Etat = 'Acquitté' WHERE Id = %s"
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cursor.execute(query, (id_alerte,))
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conn.commit()
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cursor.close()
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conn.close()
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45
app/utils_mail.py
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45
app/utils_mail.py
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@@ -0,0 +1,45 @@
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# /home/debian/Gestion_sondes/utils_mail.py
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import os
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import smtplib
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import logging
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from email.mime.text import MIMEText
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from dotenv import load_dotenv
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load_dotenv('/home/debian/Gestion_sondes/.env')
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SMTP_HOST = os.getenv("SMTP_HOST", "smtp.mail.ovh.net")
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SMTP_PORT = int(os.getenv("SMTP_PORT", "465"))
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SMTP_LOGIN = os.getenv("SMTP_LOGIN") # ex: services@domo91.fr
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SMTP_PASSWORD = os.getenv("SMTP_PASSWORD") # mot de passe OVH
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MAIL_FROM = os.getenv("MAIL_FROM", SMTP_LOGIN)
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MAIL_TO = os.getenv("MAIL_TO") # ex: services@domo91.fr
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def envoyer_mail(sujet: str, contenu: str, destinataires=None) -> None:
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"""
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Envoi email via OVH SMTP SSL 465 (process identique à supervisor_watchdog.py).
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destinataires: str unique ou liste; si None => MAIL_TO depuis .env
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"""
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if destinataires is None:
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if not MAIL_TO:
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raise ValueError("MAIL_TO manquant dans le .env")
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destinataires = [a.strip() for a in MAIL_TO.split(",") if a.strip()]
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elif isinstance(destinataires, str):
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destinataires = [destinataires]
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if not SMTP_LOGIN or not SMTP_PASSWORD:
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raise ValueError("SMTP_LOGIN / SMTP_PASSWORD manquants dans le .env")
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msg = MIMEText(contenu)
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msg["Subject"] = sujet
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msg["From"] = MAIL_FROM
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msg["To"] = ", ".join(destinataires)
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try:
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with smtplib.SMTP_SSL(SMTP_HOST, SMTP_PORT) as server:
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server.login(SMTP_LOGIN, SMTP_PASSWORD)
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server.sendmail(MAIL_FROM, destinataires, msg.as_string())
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logging.info("📧 Mail envoyé: %s -> %s", sujet, destinataires)
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except Exception as e:
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logging.error("Erreur envoi mail: %s", e)
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raise
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