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# Copyright (C) 2013 Yahoo! Inc.
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# Author: Joshua Harlow <harlowja@yahoo-inc.com>
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 3, as
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# published by the Free Software Foundation.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from StringIO import StringIO
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from cloudinit.settings import PER_INSTANCE
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from cloudinit import util
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frequency = PER_INSTANCE
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def _decode(data, encoding=None):
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if not encoding or encoding.lower() in ['raw']:
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elif encoding.lower() in ['base64', 'b64']:
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return base64.b64decode(data)
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elif encoding.lower() in ['gzip', 'gz']:
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return util.decomp_gzip(data, quiet=False)
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raise IOError("Unknown random_seed encoding: %s" % (encoding))
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def handle(name, cfg, cloud, log, _args):
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if not cfg or "random_seed" not in cfg:
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log.debug(("Skipping module named %s, "
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"no 'random_seed' configuration found"), name)
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my_cfg = cfg['random_seed']
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seed_path = my_cfg.get('file', '/dev/urandom')
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seed_buf.write(_decode(my_cfg.get('data', ''),
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encoding=my_cfg.get('encoding')))
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metadata = cloud.datasource.metadata
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if metadata and 'random_seed' in metadata:
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seed_buf.write(metadata['random_seed'])
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seed_data = seed_buf.getvalue()
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log.debug("%s: adding %s bytes of random seed entrophy to %s", name,
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len(seed_data), seed_path)
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util.append_file(seed_path, seed_data)
added
removed
cloudinit/config/cc_seed_random.py
