8f1048f840
This commit refactors the OCI images support:
* added import_container_image and export_container_image methods
to oci_tools classes. 'umoci' and 'buildah' consume different
formats thus the inital skopeo call to import a container is tool
dependent.
* use oci-archive transport for packing the OCI images, this causes
docker and oci operations to just diverge on transport type.
* add_tag method no longer needed in oci_tools/base, skopeo is used
for that matter.
* container/docker.py class is no longer needed. The difference
between docker and OCI images is just on packing format which is just
a parameter in skopeo. It does not deserve a dedicated class
* system/root_import/docker.py class no longer needed. The difference
between OCI and Docker class was just the transport type for the
skopeo call. It does not deserve a dedicated class
87 lines
2.6 KiB
Python
87 lines
2.6 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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* :attr:`custom_args`
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Dictonary to set specialized class specific configuration values
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"""
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def __init__(self, root_dir, image_uri, custom_args=None):
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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(custom_args)
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def post_init(self, custom_args):
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"""
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Initialization of the specialized import class
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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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