blob: 942df177bea89e1f2d98354ee5ae42544dad1873 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
# frozen_string_literal: true
module Projects
module ContainerRepository
module ThirdParty
class DeleteTagsService
include BaseServiceUtility
def initialize(container_repository, tag_names)
@container_repository = container_repository
@tag_names = tag_names
end
# Replace a tag on the registry with a dummy tag.
# This is a hack as the registry doesn't support deleting individual
# tags. This code effectively pushes a dummy image and assigns the tag to it.
# This way when the tag is deleted only the dummy image is affected.
# This is used to preserve compatibility with third-party registries that
# don't support fast delete.
# See https://gitlab.com/gitlab-org/gitlab/issues/15737 for a discussion
def execute
return success(deleted: []) if @tag_names.empty?
# generates the blobs for the dummy image
dummy_manifest = @container_repository.client.generate_empty_manifest(@container_repository.path)
return error('could not generate manifest') if dummy_manifest.nil?
deleted_tags = replace_tag_manifests(dummy_manifest)
# Deletes the dummy image
# All created tag digests are the same since they all have the same dummy image.
# a single delete is sufficient to remove all tags with it
if deleted_tags.any? && @container_repository.delete_tag_by_digest(deleted_tags.each_value.first)
success(deleted: deleted_tags.keys)
else
error("could not delete tags: #{@tag_names.join(', ')}".truncate(1000))
end
end
private
# update the manifests of the tags with the new dummy image
def replace_tag_manifests(dummy_manifest)
deleted_tags = @tag_names.map do |name|
digest = @container_repository.client.put_tag(@container_repository.path, name, dummy_manifest)
next unless digest
[name, digest]
end.compact.to_h
# make sure the digests are the same (it should always be)
digests = deleted_tags.values.uniq
# rubocop: disable CodeReuse/ActiveRecord
Gitlab::ErrorTracking.track_and_raise_for_dev_exception(ArgumentError.new('multiple tag digests')) if digests.many?
deleted_tags
end
end
end
end
end
|
