230 lines
7.8 KiB
Python
230 lines
7.8 KiB
Python
""" Manage the tags of a repository. """
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from flask import request, abort
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from endpoints.api import (resource, nickname, require_repo_read, require_repo_write,
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RepositoryParamResource, log_action, NotFound, validate_json_request,
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path_param, parse_args, query_param, truthy_bool)
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from endpoints.api.image import image_view
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from data import model
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from auth.auth_context import get_authenticated_user
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from util.names import TAG_ERROR, TAG_REGEX
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@resource('/v1/repository/<repopath:repository>/tag/')
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@path_param('repository', 'The full path of the repository. e.g. namespace/name')
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class ListRepositoryTags(RepositoryParamResource):
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""" Resource for listing full repository tag history, alive *and dead*. """
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@require_repo_read
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@parse_args
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@query_param('specificTag', 'Filters the tags to the specific tag.', type=str, default='')
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@query_param('limit', 'Limit to the number of results to return per page. Max 100.', type=int, default=50)
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@query_param('page', 'Page index for the results. Default 1.', type=int, default=1)
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@nickname('listRepoTags')
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def get(self, args, namespace, repository):
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repo = model.repository.get_repository(namespace, repository)
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if not repo:
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raise NotFound()
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def tag_view(tag):
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tag_info = {
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'name': tag.name,
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'docker_image_id': tag.image.docker_image_id,
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'reversion': tag.reversion,
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}
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if tag.lifetime_start_ts > 0:
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tag_info['start_ts'] = tag.lifetime_start_ts
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if tag.lifetime_end_ts > 0:
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tag_info['end_ts'] = tag.lifetime_end_ts
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return tag_info
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specific_tag = args.get('specificTag') or None
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page = max(1, args.get('page', 1))
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limit = min(100, max(1, args.get('limit', 50)))
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# Note: We ask for limit+1 here, so we can check to see if there are
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# additional pages of results.
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tags = model.tag.list_repository_tag_history(repo, page=page, size=limit+1,
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specific_tag=specific_tag)
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tags = list(tags)
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return {
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'tags': [tag_view(tag) for tag in tags[0:limit]],
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'page': page,
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'has_additional': len(tags) >= limit
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}
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@resource('/v1/repository/<repopath:repository>/tag/<tag>')
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@path_param('repository', 'The full path of the repository. e.g. namespace/name')
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@path_param('tag', 'The name of the tag')
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class RepositoryTag(RepositoryParamResource):
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""" Resource for managing repository tags. """
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schemas = {
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'MoveTag': {
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'type': 'object',
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'description': 'Description of to which image a new or existing tag should point',
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'required': [
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'image',
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],
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'properties': {
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'image': {
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'type': 'string',
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'description': 'Image identifier to which the tag should point',
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},
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},
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},
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}
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@require_repo_write
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@nickname('changeTagImage')
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@validate_json_request('MoveTag')
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def put(self, namespace, repository, tag):
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""" Change which image a tag points to or create a new tag."""
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if not TAG_REGEX.match(tag):
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abort(400, TAG_ERROR)
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image_id = request.get_json()['image']
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image = model.image.get_repo_image(namespace, repository, image_id)
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if not image:
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raise NotFound()
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original_image_id = None
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try:
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original_tag_image = model.tag.get_tag_image(namespace, repository, tag)
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if original_tag_image:
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original_image_id = original_tag_image.docker_image_id
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except model.DataModelException:
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# This is a new tag.
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pass
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model.tag.create_or_update_tag(namespace, repository, tag, image_id)
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username = get_authenticated_user().username
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log_action('move_tag' if original_image_id else 'create_tag', namespace,
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{'username': username, 'repo': repository, 'tag': tag,
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'image': image_id, 'original_image': original_image_id},
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repo=model.repository.get_repository(namespace, repository))
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return 'Updated', 201
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@require_repo_write
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@nickname('deleteFullTag')
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def delete(self, namespace, repository, tag):
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""" Delete the specified repository tag. """
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model.tag.delete_tag(namespace, repository, tag)
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username = get_authenticated_user().username
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log_action('delete_tag', namespace,
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{'username': username, 'repo': repository, 'tag': tag},
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repo=model.repository.get_repository(namespace, repository))
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return 'Deleted', 204
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@resource('/v1/repository/<repopath:repository>/tag/<tag>/images')
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@path_param('repository', 'The full path of the repository. e.g. namespace/name')
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@path_param('tag', 'The name of the tag')
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class RepositoryTagImages(RepositoryParamResource):
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""" Resource for listing the images in a specific repository tag. """
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@require_repo_read
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@nickname('listTagImages')
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@parse_args
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@query_param('owned', 'If specified, only images wholely owned by this tag are returned.',
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type=truthy_bool, default=False)
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def get(self, args, namespace, repository, tag):
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""" List the images for the specified repository tag. """
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try:
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tag_image = model.tag.get_tag_image(namespace, repository, tag)
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except model.DataModelException:
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raise NotFound()
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parent_images = model.image.get_parent_images(namespace, repository, tag_image)
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image_map = {}
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image_map[str(tag_image.id)] = tag_image
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for image in parent_images:
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image_map[str(image.id)] = image
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image_map_all = dict(image_map)
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parents = list(parent_images)
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parents.reverse()
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all_images = [tag_image] + parents
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# Filter the images returned to those not found in the ancestry of any of the other tags in
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# the repository.
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if args['owned']:
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all_tags = model.tag.list_repository_tags(namespace, repository)
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for current_tag in all_tags:
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if current_tag.name == tag:
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continue
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# Remove the tag's image ID.
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tag_image_id = str(current_tag.image_id)
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image_map.pop(tag_image_id, None)
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# Remove any ancestors:
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for ancestor_id in current_tag.image.ancestors.split('/'):
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image_map.pop(ancestor_id, None)
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return {
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'images': [image_view(image, image_map_all) for image in all_images
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if not args['owned'] or (str(image.id) in image_map)]
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}
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@resource('/v1/repository/<repopath:repository>/tag/<tag>/revert')
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@path_param('repository', 'The full path of the repository. e.g. namespace/name')
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@path_param('tag', 'The name of the tag')
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class RevertTag(RepositoryParamResource):
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""" Resource for reverting a repository tag back to a previous image. """
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schemas = {
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'RevertTag': {
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'type': 'object',
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'description': 'Reverts a tag to a specific image',
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'required': [
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'image',
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],
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'properties': {
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'image': {
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'type': 'string',
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'description': 'Image identifier to which the tag should point',
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},
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},
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},
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}
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@require_repo_write
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@nickname('revertTag')
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@validate_json_request('RevertTag')
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def post(self, namespace, repository, tag):
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""" Reverts a repository tag back to a previous image in the repository. """
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try:
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tag_image = model.tag.get_tag_image(namespace, repository, tag)
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except model.DataModelException:
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raise NotFound()
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# Revert the tag back to the previous image.
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image_id = request.get_json()['image']
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model.tag.revert_tag(tag_image.repository, tag, image_id)
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# Log the reversion.
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username = get_authenticated_user().username
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log_action('revert_tag', namespace,
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{'username': username, 'repo': repository, 'tag': tag,
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'image': image_id, 'original_image': tag_image.docker_image_id},
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repo=model.repository.get_repository(namespace, repository))
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return {
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'image_id': image_id,
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'original_image_id': tag_image.docker_image_id
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}
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