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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/>.
import logging
import configargparse
from os.path import join, dirname, normpath
from http.server import HTTPServer
from prometheus_client.core import REGISTRY
from . import __version__
from .utils import get_connection
from .exposition import create_request_handler
from .collectors import StatsCollector, ListsCollector, PoolsCollector, \
DatabasesCollector
def main():
p = configargparse.ArgParser(
prog="prometheus-pgbouncer-exporter",
default_config_files=[
'/etc/prometheus-pgbouncer-exporter/config',
],
)
p.add(
'--version',
action='store_true',
help="Show the version",
)
p.add(
'-c',
'--config',
is_config_file=True,
help='config file path',
)
p.add(
'--port',
default='6432',
help="Port to connect to pgbouncer",
env_var='PGBOUNCER_PORT',
)
p.add(
'--user',
default='pgbouncer',
help="User to connect to pgbouncer with",
env_var='PGBOUNCER_USER',
)
p.add(
'--database',
action='append',
help="Databases to report metrics for, if this is not specified, all metrics will be reported",
env_var='PGBOUNCER_DATABASES',
)
p.add(
'--licence-location',
default=join(dirname(dirname(normpath(__file__))), 'LICENSE'),
help="The location of the licence, linked to through the web interface",
env_var='LICENCE_LOCATION',
)
options = p.parse_args()
if options.version:
print("prometheus-pgbouncer-exporter %s" % __version__)
return
logging.basicConfig(level=logging.DEBUG)
logging.info(p.format_values())
connection = get_connection(options.user, options.port)
REGISTRY.register(StatsCollector(
connection=connection,
databases=options.database,
))
REGISTRY.register(PoolsCollector(
connection=connection,
databases=options.database,
))
REGISTRY.register(DatabasesCollector(
connection=connection,
databases=options.database,
))
REGISTRY.register(ListsCollector(
connection=connection,
))
host = '0.0.0.0'
port = 9127
httpd = HTTPServer(
(host, port),
create_request_handler(options.licence_location),
)
logging.info("Listing on port %s:%d" % (host, port))
try:
httpd.serve_forever()
except KeyboardInterrupt:
pass
finally:
connection.close()
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