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