b957aadc47
The patch includes the following changes:
* add a new folder for cloud-config plugins, in userdataplugins.
It will contain plugins which can be processed by the cloud-config
user data plugin, right now, only write-files is supported.
* move the code related to cloudconfig functionalities in a
executor class. The meaning of this class is plain and simple
and it doesn't clutter the base plugin.
* add a from_yaml classmethod to the newly added cloud config executor.
In this way, we could add support for other formats as well,
the only thing required being adding a new factory method for
these formats.
* the tests aren't relying too much on mock, they are written
with feature-testing in mind.
Change-Id: I8f73e7aaafee74e8023bf7c5e13579982b5f9498
65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
# Copyright 2014 Cloudbase Solutions Srl
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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 functools
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import re
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from cloudbaseinit.openstack.common import log as logging
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from cloudbaseinit.plugins.common import execcmd
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LOG = logging.getLogger(__name__)
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# Avoid 80+ length by using a local variable, which
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# is deleted afterwards.
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_compile = functools.partial(re.compile, flags=re.I)
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FORMATS = (
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(_compile(br'^rem\s+cmd\s'), execcmd.Shell),
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(_compile(br'^#!\s*/usr/bin/env\s+python\s'), execcmd.Python),
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(_compile(br'^#!'), execcmd.Bash),
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(_compile(br'^#(ps1|ps1_sysnative)\s'), execcmd.PowershellSysnative),
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(_compile(br'^#ps1_x86\s'), execcmd.Powershell),
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(_compile(br'</?(script|powershell)>'), execcmd.EC2Config),
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)
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del _compile
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def _get_command(data):
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# Get the command which should process the given data.
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for pattern, command_class in FORMATS:
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if pattern.search(data):
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return command_class.from_data(data)
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def execute_user_data_script(user_data):
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ret_val = 0
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out = err = None
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command = _get_command(user_data)
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if not command:
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LOG.warning('Unsupported user_data format')
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return ret_val
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try:
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out, err, ret_val = command()
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except Exception as exc:
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LOG.warning('An error occurred during user_data execution: \'%s\'',
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exc)
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else:
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LOG.debug('User_data stdout:\n%s', out)
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LOG.debug('User_data stderr:\n%s', err)
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LOG.info('User_data script ended with return code: %d', ret_val)
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return ret_val
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