c35f9f3b23
This commit adds support for OCI images. Most of the docker related code is reused for OCI classes and Docker classes have been refactored so now they are a splecialization of the OCI classes. It is done this way since KIWI internally only uses OCI format to operate with containers, therefore docker images just differ from OCI images by the way they are packaged or unpackaged.
84 lines
2.4 KiB
Python
84 lines
2.4 KiB
Python
# Copyright (c) 2015 SUSE Linux GmbH. All rights reserved.
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#
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# This file is part of kiwi.
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#
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# kiwi is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# kiwi 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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#
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# You should have received a copy of the GNU General Public License
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# along with kiwi. If not, see <http://www.gnu.org/licenses/>
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#
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import os
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# project
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from kiwi.utils.checksum import Checksum
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from kiwi.logger import log
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from kiwi.exceptions import (
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KiwiRootImportError,
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KiwiUriTypeUnknown
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)
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class RootImportBase(object):
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"""
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Imports the root system from an already packed image.
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* :attr:`root_dir`
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root directory path name
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* :attr:`image_uri`
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Uri object to store source location
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"""
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def __init__(self, root_dir, image_uri):
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self.unknown_uri = None
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self.root_dir = root_dir
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try:
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if image_uri.is_remote():
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raise KiwiRootImportError(
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'Only local imports are supported'
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)
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self.image_file = image_uri.translate()
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if not os.path.exists(self.image_file):
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raise KiwiRootImportError(
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'Could not stat base image file: {0}'.format(
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self.image_file
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)
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)
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except KiwiUriTypeUnknown:
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# Let specialized class handle unknown uri schemes
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log.warning(
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'Unkown URI type for the base image: %s', image_uri.uri
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)
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self.unknown_uri = image_uri.uri
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finally:
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self.post_init(image_uri)
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def post_init(self, image_uri):
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"""
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Post initalization method
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Implementation in specialized root import class
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"""
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pass
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def sync_data(self):
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"""
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Synchronizes the root system of `image_file` into the root_dir
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Implementation in specialized root import class
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"""
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raise NotImplementedError
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def _make_checksum(self, image):
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checksum = Checksum(image)
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checksum.md5(''.join([image, '.md5']))
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