91 lines
3.0 KiB
Python
91 lines
3.0 KiB
Python
#!/usr/bin/python
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# Copyright 2016 Mirantis, 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import collectd
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import requests
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import collectd_base as base
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NAME = 'http_check'
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class HTTPCheckPlugin(base.Base):
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def __init__(self, *args, **kwargs):
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super(HTTPCheckPlugin, self).__init__(*args, **kwargs)
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self.plugin = NAME
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self.session = requests.Session()
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self.session.mount(
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'http://',
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requests.adapters.HTTPAdapter(max_retries=self.max_retries)
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)
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self.session.mount(
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'https://',
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requests.adapters.HTTPAdapter(max_retries=self.max_retries)
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)
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self.urls = {}
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self.expected_codes = {}
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def config_callback(self, config):
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super(HTTPCheckPlugin, self).config_callback(config)
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for node in config.children:
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if node.key == "Url":
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self.urls[node.values[0]] = node.values[1]
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elif node.key == 'ExpectedCode':
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self.expected_codes[node.values[0]] = int(node.values[1])
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def itermetrics(self):
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for name, url in self.urls.items():
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try:
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r = self.session.get(url, timeout=self.timeout)
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except Exception as e:
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self.logger.warning("Got exception for '{}': {}".format(
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url, e)
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)
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yield {'type_instance': name, 'values': self.FAIL}
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else:
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expected_code = self.expected_codes.get(name, 200)
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if r.status_code != expected_code:
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self.logger.warning(
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("{} ({}) responded with code {} "
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"while {} is expected").format(name, url,
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r.status_code,
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expected_code))
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yield {'type_instance': name, 'values': self.FAIL}
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else:
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self.logger.debug(
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"Got response from {}: '{}'".format(url, r.text))
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yield {'type_instance': name, 'values': self.OK}
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plugin = HTTPCheckPlugin(collectd)
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def config_callback(conf):
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plugin.config_callback(conf)
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def notification_callback(notification):
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plugin.notification_callback(notification)
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def read_callback():
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plugin.conditional_read_callback()
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collectd.register_config(config_callback)
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collectd.register_notification(notification_callback)
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collectd.register_read(read_callback, base.INTERVAL)
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