Pouzor
90 lines
3.0 KiB
Python
90 lines
3.0 KiB
Python
"""Per-node status checks: ping, http, https, tcp, ssh, prometheus, health, none."""
|
|
import asyncio
|
|
import logging
|
|
import socket
|
|
import sys
|
|
import time
|
|
from typing import Any
|
|
|
|
import httpx
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
async def check_node(check_method: str, target: str | None, ip: str | None) -> dict[str, Any]:
|
|
"""
|
|
Run the appropriate check and return {status, response_time_ms}.
|
|
status is one of: online, offline, unknown.
|
|
"""
|
|
if check_method == "none":
|
|
return {"status": "online", "response_time_ms": None}
|
|
|
|
host = target or ip
|
|
if not host:
|
|
return {"status": "unknown", "response_time_ms": None}
|
|
|
|
start = time.monotonic()
|
|
try:
|
|
match check_method:
|
|
case "ping":
|
|
ok = await _ping(host)
|
|
case "http":
|
|
url = host if host.startswith("http") else f"http://{host}"
|
|
ok = await _http_get(url)
|
|
case "https":
|
|
url = host if host.startswith("https") else f"https://{host}"
|
|
ok = await _http_get(url, verify=True)
|
|
case "tcp":
|
|
host_part, _, port_str = host.rpartition(":")
|
|
port = int(port_str) if port_str.isdigit() else 80
|
|
ok = await _tcp_connect(host_part or host, port)
|
|
case "ssh":
|
|
ok = await _tcp_connect(host, 22)
|
|
case "prometheus":
|
|
url = host if host.startswith("http") else f"http://{host}/metrics"
|
|
ok = await _http_get(url)
|
|
case "health":
|
|
url = host if host.startswith("http") else f"http://{host}/health"
|
|
ok = await _http_get(url)
|
|
case _:
|
|
ok = await _ping(host)
|
|
|
|
elapsed_ms = int((time.monotonic() - start) * 1000)
|
|
return {"status": "online" if ok else "offline", "response_time_ms": elapsed_ms}
|
|
|
|
except Exception as exc:
|
|
logger.debug("Check failed for %s (%s): %s", host, check_method, exc)
|
|
return {"status": "offline", "response_time_ms": None}
|
|
|
|
|
|
async def _ping(host: str) -> bool:
|
|
if sys.platform == "win32":
|
|
args = ["ping", "-n", "1", "-w", "1000", host]
|
|
else:
|
|
args = ["ping", "-c", "1", "-W", "1", host]
|
|
proc = await asyncio.create_subprocess_exec(
|
|
*args,
|
|
stdout=asyncio.subprocess.DEVNULL,
|
|
stderr=asyncio.subprocess.DEVNULL,
|
|
)
|
|
await proc.wait()
|
|
return proc.returncode == 0
|
|
|
|
|
|
async def _http_get(url: str, verify: bool = False) -> bool:
|
|
async with httpx.AsyncClient(verify=verify, timeout=5) as client:
|
|
resp = await client.get(url, follow_redirects=True)
|
|
return resp.status_code < 500
|
|
|
|
|
|
async def _tcp_connect(host: str, port: int) -> bool:
|
|
try:
|
|
_, writer = await asyncio.wait_for(
|
|
asyncio.open_connection(host, port), timeout=3
|
|
)
|
|
writer.close()
|
|
await writer.wait_closed()
|
|
return True
|
|
except (TimeoutError, OSError, socket.gaierror):
|
|
return False
|