0941f4e3b0
Help messages mention support for multiple config paths separated by colons. Yet this feature is not implemented. This change implements it. Change-Id: Ieb99cba98c9cf775765eacd4ebadfbccfa815a65
106 lines
4.0 KiB
Python
106 lines
4.0 KiB
Python
# Copyright 2015 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import os
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from grafana_dashboards.cache import Cache
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from grafana_dashboards.grafana import Grafana
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from grafana_dashboards.parser import YamlParser
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LOG = logging.getLogger(__name__)
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class Builder(object):
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def __init__(self, config):
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self.cache = Cache(
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config.get('cache', 'cachedir'),
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config.getboolean('cache', 'enabled'))
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self.grafana = Grafana(
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url=config.get('grafana', 'url'),
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key=config.get('grafana', 'apikey'))
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self.parser = YamlParser()
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def delete(self, path):
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self.load_files(path)
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datasources = self.parser.data.get('datasource', {})
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LOG.info('Number of datasources to be deleted: %d', len(datasources))
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self._delete_datasource(datasources)
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dashboards = self.parser.data.get('dashboard', {})
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LOG.info('Number of dashboards to be deleted: %d', len(dashboards))
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self._delete_dashboard(dashboards)
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def load_files(self, path):
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files_to_process = []
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paths = path.split(':')
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for path in paths:
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if os.path.isdir(path):
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files_to_process.extend([os.path.join(path, f)
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for f in os.listdir(path)
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if (f.endswith('.yaml')
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or f.endswith('.yml'))])
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else:
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files_to_process.append(path)
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for fn in files_to_process:
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self.parser.parse(fn)
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def update(self, path):
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self.load_files(path)
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datasources = self.parser.data.get('datasource', {})
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LOG.info('Number of datasources to be updated: %d', len(datasources))
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self._update_datasource(datasources)
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dashboards = self.parser.data.get('dashboard', {})
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LOG.info('Number of dashboards to be updated: %d', len(dashboards))
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self._update_dashboard(dashboards)
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def _delete_dashboard(self, data):
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for name in data:
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LOG.debug('Deleting grafana dashboard %s', name)
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self.grafana.dashboard.delete(name)
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self.cache.set(name, '')
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def _delete_datasource(self, data):
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for name in data:
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LOG.debug('Deleting grafana datasource %s', name)
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datasource_id = self.grafana.datasource.is_datasource(name)
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if datasource_id:
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self.grafana.datasource.delete(datasource_id)
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self.cache.set(name, '')
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def _update_dashboard(self, data):
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for name in data:
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data, md5 = self.parser.get_dashboard(name)
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if self.cache.has_changed(name, md5):
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self.grafana.dashboard.create(name, data, overwrite=True)
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self.cache.set(name, md5)
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else:
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LOG.debug("'%s' has not changed" % name)
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def _update_datasource(self, data):
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for name in data:
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data, md5 = self.parser.get_datasource(name)
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if self.cache.has_changed(name, md5):
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# Check for existing datasource so we can find the
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# datasource_id.
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datasource_id = self.grafana.datasource.is_datasource(name)
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if datasource_id:
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self.grafana.datasource.update(datasource_id, data)
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else:
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self.grafana.datasource.create(name, data)
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self.cache.set(name, md5)
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else:
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LOG.debug("'%s' has not changed" % name)
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