New supervision

- using fastAPI
- offline/online working
- warning if ZABBIX API is too long
- showing settings
- showing last ack message
- showing procedure
- menu split by SU team

utils/background_tasks.py

@@ -0,0 +1,47 @@
+import asyncio
+import socket
+from typing import Dict, Tuple
+
+from schemas import ServerStatuses, ZabbixServer
+from settings import settings
+from utils import write_json_file
+from utils.log import logger
+
+
+def socket_connect(ip: str, port: int) -> int:
+    try:
+        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        sock.settimeout(5)
+        result = sock.connect_ex((ip, port))
+        sock.close()
+        return result
+    except Exception as e:
+        return -1  # or any other suitable error code
+
+
+async def check_server(server: ZabbixServer) -> Tuple[str, bool]:
+    try:
+        result = await asyncio.to_thread(socket_connect, server.ip, server.port)
+        if result == 0:
+            logger.info(f"[INFO] - Port {server.port} OK: {server.ip}")
+            return (server.ip, True)
+        else:
+            logger.info(f"[ERR] - Port {server.port} KO: {server.ip}")
+            return (server.ip, False)
+    except Exception as e:
+        logger.info(f"[ERR] - Connection Failed: {server.ip}, Error: {e}")
+        return (server.ip, False)
+
+
+async def check_servers() -> None:
+    while True:
+        servers: Dict[str, bool] = {}
+        tasks = [check_server(server) for server in settings.ZABBIX_SERVERS_CHECK]
+        results_list = await asyncio.gather(*tasks)
+        for ip, status in results_list:
+            servers[ip] = status
+        server_statuses = ServerStatuses(servers)
+        await write_json_file(
+            f"{settings.DATA_DIR}/{settings.ZABBIX_SERVERS_JSON}", server_statuses.root
+        )
+        await asyncio.sleep(60)