43 lines
1.9 KiB
Python
43 lines
1.9 KiB
Python
 
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#!/usr/bin/env python3
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# Minimaler Alertmanager-Webhook -> Matrix-Raum (gitops#32). Gleiche Machart wie
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# maintenance-notify (Issue #24 im gitops-Repo): purer Stdlib-HTTP-Server, Bot-Token
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# aus der Umgebung, Nachricht per Client-Server-API. Kein Framework, kein State.
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import json, os, urllib.request, uuid
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from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
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HOMESERVER = os.environ["MATRIX_HOMESERVER"]
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ROOM_ID = os.environ["MATRIX_ROOM_ID"]
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TOKEN = os.environ["MATRIX_TOKEN"]
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def send_matrix(text):
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url = f"{HOMESERVER}/_matrix/client/v3/rooms/{urllib.parse.quote(ROOM_ID)}/send/m.room.message/{uuid.uuid4()}"
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body = json.dumps({"msgtype": "m.text", "body": text}).encode()
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req = urllib.request.Request(url, data=body, method="PUT", headers={
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"Authorization": f"Bearer {TOKEN}", "Content-Type": "application/json"})
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urllib.request.urlopen(req, timeout=10).read()
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class Handler(BaseHTTPRequestHandler):
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def do_POST(self):
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if self.path != "/alert":
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self.send_response(404); self.end_headers(); return
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data = json.loads(self.rfile.read(int(self.headers.get("Content-Length", 0))))
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lines = []
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for a in data.get("alerts", []):
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icon = "\U0001F534" if a.get("status") == "firing" else "✅"
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name = a.get("labels", {}).get("alertname", "?")
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summary = a.get("annotations", {}).get("summary", "")
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lines.append(f"{icon} [{a.get('status')}] {name}: {summary}")
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if lines:
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try:
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send_matrix("\n".join(lines))
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except Exception as e:
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self.log_message("matrix send failed: %s", e)
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self.send_response(502); self.end_headers(); return
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self.send_response(200); self.end_headers()
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def log_message(self, fmt, *args):
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print(fmt % args, flush=True)
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import urllib.parse
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ThreadingHTTPServer(("0.0.0.0", 8080), Handler).serve_forever()
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