67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 Mirantis 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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import imp
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import os
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from cloudbaseinit.openstack.common import log as logging
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LOG = logging.getLogger("cloudbaseinit")
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def get_plugin(parent_set):
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return PartHandlerScriptHandler(parent_set)
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def load_from_file(filepath, function):
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class_inst = None
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mod_name, file_ext = os.path.splitext(os.path.split(filepath)[-1])
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if file_ext.lower() == '.py':
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py_mod = imp.load_source(mod_name, filepath)
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elif file_ext.lower() == '.pyc':
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py_mod = imp.load_compiled(mod_name, filepath)
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if hasattr(py_mod, function):
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return getattr(__import__(mod_name), function)
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class PartHandlerScriptHandler:
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def __init__(self, parent_set):
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LOG.info("Part-handler script part handler is loaded.")
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self.type = "text/part-handler"
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self.name = "Part-handler userdata plugin"
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self.parent_set = parent_set
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def process(self, part):
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handler_path = (self.parent_set.path + "/part-handler/" +
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part.get_filename())
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with open(handler_path, "wb") as f:
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f.write(part.get_payload())
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list_types = load_from_file(handler_path, "list_types")
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handle_part = load_from_file(handler_path, "handle_part")
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if list_types is not None and handle_part is not None:
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parts = list_types()
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for part in parts:
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LOG.info("Installing new custom handler for type: %s", part)
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self.parent_set.custom_handlers[part] = handle_part
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self.parent_set.has_custom_handlers = True
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