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
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
# frozen_string_literal: true
module Ci
# Takes in input a Ci::Bridge job and creates a downstream pipeline
# (either multi-project or child pipeline) according to the Ci::Bridge
# specifications.
class CreateDownstreamPipelineService < ::BaseService
include Gitlab::Utils::StrongMemoize
DuplicateDownstreamPipelineError = Class.new(StandardError)
MAX_DESCENDANTS_DEPTH = 2
def execute(bridge)
@bridge = bridge
if bridge.has_downstream_pipeline?
Gitlab::ErrorTracking.track_exception(
DuplicateDownstreamPipelineError.new,
bridge_id: @bridge.id, project_id: @bridge.project_id
)
return error('Already has a downstream pipeline')
end
pipeline_params = @bridge.downstream_pipeline_params
target_ref = pipeline_params.dig(:target_revision, :ref)
return error('Pre-conditions not met') unless ensure_preconditions!(target_ref)
service = ::Ci::CreatePipelineService.new(
pipeline_params.fetch(:project),
current_user,
pipeline_params.fetch(:target_revision))
downstream_pipeline = service
.execute(pipeline_params.fetch(:source), **pipeline_params[:execute_params])
.payload
downstream_pipeline.tap do |pipeline|
update_bridge_status!(@bridge, pipeline)
end
end
private
def update_bridge_status!(bridge, pipeline)
Gitlab::OptimisticLocking.retry_lock(bridge, name: 'create_downstream_pipeline_update_bridge_status') do |subject|
if pipeline.created_successfully?
# If bridge uses `strategy:depend` we leave it running
# and update the status when the downstream pipeline completes.
subject.success! unless subject.dependent?
else
subject.options[:downstream_errors] = pipeline.errors.full_messages
subject.drop!(:downstream_pipeline_creation_failed)
end
end
rescue StateMachines::InvalidTransition => e
Gitlab::ErrorTracking.track_exception(
Ci::Bridge::InvalidTransitionError.new(e.message),
bridge_id: bridge.id,
downstream_pipeline_id: pipeline.id)
end
def ensure_preconditions!(target_ref)
unless downstream_project_accessible?
@bridge.drop!(:downstream_bridge_project_not_found)
return false
end
# TODO: Remove this condition if favour of model validation
# https://gitlab.com/gitlab-org/gitlab/issues/38338
if downstream_project == project && !@bridge.triggers_child_pipeline?
@bridge.drop!(:invalid_bridge_trigger)
return false
end
# TODO: Remove this condition if favour of model validation
# https://gitlab.com/gitlab-org/gitlab/issues/38338
if has_max_descendants_depth?
@bridge.drop!(:reached_max_descendant_pipelines_depth)
return false
end
unless can_create_downstream_pipeline?(target_ref)
@bridge.drop!(:insufficient_bridge_permissions)
return false
end
if has_cyclic_dependency?
@bridge.drop!(:pipeline_loop_detected)
return false
end
true
end
def downstream_project_accessible?
downstream_project.present? &&
can?(current_user, :read_project, downstream_project)
end
def can_create_downstream_pipeline?(target_ref)
can?(current_user, :update_pipeline, project) &&
can?(current_user, :create_pipeline, downstream_project) &&
can_update_branch?(target_ref)
end
def can_update_branch?(target_ref)
::Gitlab::UserAccess.new(current_user, container: downstream_project).can_update_branch?(target_ref)
end
def downstream_project
strong_memoize(:downstream_project) do
@bridge.downstream_project
end
end
def has_cyclic_dependency?
return false if @bridge.triggers_child_pipeline?
if Feature.enabled?(:ci_drop_cyclical_triggered_pipelines, @bridge.project, default_enabled: :yaml)
pipeline_checksums = @bridge.pipeline.self_and_upstreams.filter_map do |pipeline|
config_checksum(pipeline) unless pipeline.child?
end
pipeline_checksums.uniq.length != pipeline_checksums.length
end
end
def has_max_descendants_depth?
return false unless @bridge.triggers_child_pipeline?
ancestors_of_new_child = @bridge.pipeline.self_and_ancestors
ancestors_of_new_child.count > MAX_DESCENDANTS_DEPTH
end
def config_checksum(pipeline)
[pipeline.project_id, pipeline.ref].hash
end
end
end
|
