Add doc about db being offline to encryption utility
The utility wasn't designed to be run while live stacks are being updated. Change-Id: I89e5152ad32ea22a38da7ae410c47e1e7a8551a9
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@ -122,7 +122,9 @@ def add_command_parsers(subparsers):
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parser.add_argument('crypt_operation',
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nargs='?',
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choices=['encrypt', 'decrypt'],
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help=_('Valid values are encrypt or decrypt.'))
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help=_('Valid values are encrypt or decrypt. The '
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'heat-engine processes must be stopped to use '
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'this.'))
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parser.add_argument('previous_encryption_key',
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nargs='?',
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default=None,
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