61 lines
1.8 KiB
Python
61 lines
1.8 KiB
Python
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#!/usr/bin/env python3
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import os
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from motor.motor_asyncio import AsyncIOMotorClient
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from sanic import Sanic, response, exceptions
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MONGO_URI = os.getenv("MONGO_URI")
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if not MONGO_URI:
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raise ValueError("No MONGO_URI specified")
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PROMETHEUS_BEARER_TOKEN = os.getenv("PROMETHEUS_BEARER_TOKEN")
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if not PROMETHEUS_BEARER_TOKEN:
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raise ValueError("No PROMETHEUS_BEARER_TOKEN specified")
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app = Sanic("exporter")
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@app.listener("before_server_start")
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async def setup_db(app, loop):
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app.ctx.db = AsyncIOMotorClient(MONGO_URI).get_default_database()
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async def wrap(i, prefix="wildduck_"):
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metrics_seen = set()
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async for name, tp, value, labels in i:
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if name not in metrics_seen:
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yield "# TYPE %s %s" % (name, tp)
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metrics_seen.add(name)
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yield "%s%s %d" % (
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prefix + name,
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("{%s}" % ",".join(["%s=\"%s\"" % j for j in labels.items()]) if labels else ""),
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value)
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async def fetch():
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async for u in app.ctx.db.users.find():
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labels = {
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"username": u["username"],
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"email": u["address"],
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}
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if u["lastLogin"]["time"]:
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yield "last_login", "gauge", u["lastLogin"]["time"].timestamp(), labels
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if u["storageUsed"]:
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yield "storage_used", "gauge", u["storageUsed"], labels
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if u["targets"]:
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yield "forwarding_addresses", "gauge", len(u["targets"]), labels
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yield "account_enabled", "gauge", not u["disabled"], labels
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@app.route("/metrics")
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async def view_export(request):
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if request.token != PROMETHEUS_BEARER_TOKEN:
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raise exceptions.Forbidden("Invalid bearer token")
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async def streaming_fn(response):
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async for line in wrap(fetch()):
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await response.write(line + "\n")
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return response.stream(streaming_fn, content_type="text/plain")
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app.run(port=3001)
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