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# -*- coding: utf-8 -*- |
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# |
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# This file is part of Glances. |
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# |
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# Copyright (C) 2019 Nicolargo <[email protected]> |
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# |
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# Glances is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU Lesser General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# Glances is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU Lesser General Public License for more details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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"""RESTful interface class.""" |
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import sys |
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from glances.compat import listkeys |
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from glances.logger import logger |
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from glances.exports.glances_export import GlancesExport |
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from requests import post |
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class Export(GlancesExport): |
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"""This class manages the RESTful export module. |
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Be aware that stats will be exported in one big POST request""" |
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def __init__(self, config=None, args=None): |
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"""Init the RESTful export IF.""" |
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super(Export, self).__init__(config=config, args=args) |
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# Mandatories configuration keys (additional to host and port) |
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self.protocol = None |
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self.path = None |
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# Load the RESTful section in the configuration file |
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self.export_enable = self.load_conf('restful', |
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mandatories=['host', 'port', 'protocol', 'path']) |
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if not self.export_enable: |
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sys.exit(2) |
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# Init the stats buffer |
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# It's a dict of stats |
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self.buffer = {} |
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# Init the Statsd client |
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self.client = self.init() |
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def init(self): |
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"""Init the connection to the RESTful server.""" |
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if not self.export_enable: |
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return None |
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# Build the RESTful URL where the stats will be posted |
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url = '{}://{}:{}{}'.format(self.protocol, |
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self.host, |
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self.port, |
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self.path) |
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logger.info( |
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"Stats will be exported to the RESTful endpoint {}".format(url)) |
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return url |
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def export(self, name, columns, points): |
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"""Export the stats to the Statsd server.""" |
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if name == self.plugins_to_export()[0] and self.buffer != {}: |
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# One complete loop have been done |
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logger.debug("Export stats ({}) to RESTful endpoint ({})".format(listkeys(self.buffer), |
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self.client)) |
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# Export stats |
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post(self.client, json=self.buffer, allow_redirects=True) |
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# Reset buffer |
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self.buffer = {} |
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# Add current stat to the buffer |
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self.buffer[name] = dict(zip(columns, points)) |
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