74 lines
2.4 KiB
Python
74 lines
2.4 KiB
Python
# Copyright 2016 Tesora, Inc.
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# All Rights Reserved.
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#
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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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#
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from datetime import date
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from oslo_log import log as logging
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from trove.common import cfg
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from trove.common.i18n import _
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from trove.common import stream_codecs
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from trove.guestagent.common import operating_system
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from trove.guestagent.module.drivers import module_driver
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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class PingDriver(module_driver.ModuleDriver):
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"""Concrete module to show implementation and functionality. Responds
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like an actual module driver, but does nothing except return the
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value of the message key in the contents file. For example, if the file
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contains 'message=Hello' then the message returned by module-apply will
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be 'Hello.'
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"""
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def get_type(self):
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return 'ping'
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def get_description(self):
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return "Ping Guestagent Module Driver"
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def get_updated(self):
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return date(2016, 3, 4)
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def apply(self, name, datastore, ds_version, data_file):
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success = False
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message = "Message not found in contents file"
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try:
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data = operating_system.read_file(
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data_file, codec=stream_codecs.KeyValueCodec())
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for key, value in data.items():
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if 'message' == key.lower():
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success = True
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message = value
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break
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except Exception:
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# assume we couldn't read the file, because there was some
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# issue with it (for example, it's a binary file). Just log
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# it and drive on.
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LOG.error(_("Could not extract contents from '%s' - possibly "
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"a binary file?") % name)
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return success, message
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def _is_binary(self, data_str):
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bool(data_str.translate(None, self.TEXT_CHARS))
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def remove(self, name, datastore, ds_version, data_file):
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return True, ""
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