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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) 2021 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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"""Graphite interface class.""" |
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import sys |
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from numbers import Number |
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from glances.compat import range |
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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 graphitesend import GraphiteClient |
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class Export(GlancesExport): |
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"""This class manages the Graphite export module.""" |
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def __init__(self, config=None, args=None): |
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"""Init the Graphite 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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# N/A |
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# Optionals configuration keys |
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self.debug = False |
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self.prefix = None |
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self.system_name = None |
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# Load the configuration file |
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self.export_enable = self.load_conf('graphite', |
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mandatories=['host', |
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'port'], |
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options=['prefix', |
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'system_name']) |
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if not self.export_enable: |
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sys.exit(2) |
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# Default prefix for stats is 'glances' |
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if self.prefix is None: |
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self.prefix = 'glances' |
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# Convert config option type |
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self.port = int(self.port) |
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# Init the Graphite 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 Graphite server.""" |
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client = None |
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if not self.export_enable: |
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return client |
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try: |
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if self.system_name is None: |
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client = GraphiteClient(graphite_server=self.host, |
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graphite_port=self.port, |
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prefix=self.prefix, |
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lowercase_metric_names=True, |
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debug=self.debug) |
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else: |
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client = GraphiteClient(graphite_server=self.host, |
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graphite_port=self.port, |
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prefix=self.prefix, |
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system_name=self.system_name, |
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lowercase_metric_names=True, |
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debug=self.debug) |
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except Exception as e: |
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logger.error("Can not write data to Graphite server: {}:{} ({})".format(self.host, |
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self.port, |
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e)) |
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client = None |
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else: |
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logger.info( |
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"Stats will be exported to Graphite server: {}:{}".format(self.host, |
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self.port)) |
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return client |
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def export(self, name, columns, points): |
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"""Export the stats to the Graphite server.""" |
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if self.client is None: |
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return False |
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before_filtering_dict = dict(zip( |
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[normalize('{}.{}'.format(name, i)) for i in columns], |
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points)) |
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after_filtering_dict = dict( |
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filter(lambda i: isinstance(i[1], Number), |
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before_filtering_dict.items())) |
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try: |
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self.client.send_dict(after_filtering_dict) |
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except Exception as e: |
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logger.error("Can not export stats to Graphite (%s)" % e) |
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return False |
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else: |
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logger.debug("Export {} stats to Graphite".format(name)) |
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return True |
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def normalize(name): |
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"""Normalize name for the Graphite convention""" |
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# Name should not contain space |
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ret = name.replace(' ', '_') |
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return ret |
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nicolargo /
glances
