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#!/usr/bin/python3
# Copyright (C) 2015 Christopher Baines <mail@cbaines.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from prometheus_client.exposition import MetricsHandler
index_page = """
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Prometheus PgBouncer Exporter</title>
</head>
<body>
<h1>PgBouncer exporter for Prometheus</h1>
<p>
This is a simple exporter for PgBouncer that makes several metrics
available to Prometheus.
</p>
<p>
Metrics are exported from the SHOW LISTS, STATS, POOLS and DATABASE comand
output.
</p>
<a href="/metrics">View metrics</a>
</body>
</html>
"""
class RequestHandler(MetricsHandler):
def do_GET(self):
if self.path == "/metrics":
return super().do_GET()
else:
self.send_response(200)
self.end_headers()
self.wfile.write(index_page.encode('UTF-8'))
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