538aec2e1b
It is possible monasca-setup configuration process informs user about errors related to setting up other services, but system is working correctly. It is expected to change some log level classification for INFO or WARNING depends on type of message. Story: 2004970 Task: 29425 Change-Id: Idb8101fea6e7c5c357d72d77b3b264db4cce8527
94 lines
3.6 KiB
Python
94 lines
3.6 KiB
Python
# (c) Copyright 2015-2016 Hewlett Packard Enterprise Development LP
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# Copyright 2017 Fujitsu LIMITED
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# Copyright 2017 SUSE Linux GmbH
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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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import yaml
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from monasca_setup import agent_config
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from monasca_setup.detection import plugin
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from monasca_setup.detection import utils
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log = logging.getLogger(__name__)
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_POSTFIX_PROC_NAME = 'postfix'
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_POSTFIX_DIRECTORY = """/var/spool/postfix"""
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_POSTFIX_CHECK_COMMAND = ('sudo -l -U {0} find %s/incoming '
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'-type f > /dev/null' % _POSTFIX_DIRECTORY)
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"""Command to verify if user running monasca-agent
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has sudo permission to access postfix directory"""
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class Postfix(plugin.Plugin):
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"""If postfix is running install the default config.
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"""
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ERROR_MSG = 'postfix plugin will not be configured.'
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def _detect(self):
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"""Run detection, set self.available True if the service is detected.
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"""
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try:
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has_process = (utils.find_process_cmdline(_POSTFIX_PROC_NAME)
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is not None)
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agent_user = utils.get_agent_username() if has_process else None
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has_user = agent_user is not None
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has_sudoers = (self._has_sudoers(agent_user)
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if agent_user else False)
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except Exception:
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self.available = False
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detailed_msg = ('Unexpected exception while '
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'running postfix detection.')
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log.exception('%s\n%s' % (detailed_msg, self.ERROR_MSG))
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else:
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self.available = has_process and has_sudoers
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if not self.available:
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if not has_process:
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detailed_msg = ('%s process was not found.'
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% _POSTFIX_PROC_NAME)
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log.info('%s\n%s' % (detailed_msg, self.ERROR_MSG))
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elif not has_user:
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detailed_msg = 'Did not locate agent\'s username.'
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log.error('%s\n%s' % (detailed_msg, self.ERROR_MSG))
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elif not has_sudoers:
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detailed_msg = ('%s cannot access %s directory. '
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'\n Refer to postfix plugin documentation '
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'for more details.'
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% (agent_user, _POSTFIX_DIRECTORY))
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log.warning('%s\n%s' % (detailed_msg, self.ERROR_MSG))
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def build_config(self):
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"""Build the config as a Plugins object and return.
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"""
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# A bit silly to parse the yaml only for it to be converted back but this
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# plugin is the exception not the rule
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with open(os.path.join(self.template_dir, 'conf.d/postfix.yaml.example'),
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'r') as postfix_template:
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default_net_config = yaml.safe_load(postfix_template.read())
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config = agent_config.Plugins()
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config['postfix'] = default_net_config
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return config
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def dependencies_installed(self):
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return True
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@staticmethod
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def _has_sudoers(agent_user):
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test_sudo = os.system(_POSTFIX_CHECK_COMMAND.format(agent_user))
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return test_sudo == 0
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