Swap FK ci_job_token_project_scope_links to projects for LFK

Swaps FK for ci_job_token_project_scope_links.target_project_id to projects

Changelog: changed

db/post_migrate/20220126201752_remove_projects_ci_job_token_project_scope_links_target_project_id_fk.rb

+# frozen_string_literal: true
+
+class RemoveProjectsCiJobTokenProjectScopeLinksTargetProjectIdFk < Gitlab::Database::Migration[1.0]
+  disable_ddl_transaction!
+
+  def up
+    return unless foreign_key_exists?(:ci_job_token_project_scope_links, :projects, name: "fk_rails_6904b38465")
+
+    with_lock_retries do
+      execute('LOCK projects, ci_job_token_project_scope_links IN ACCESS EXCLUSIVE MODE') if transaction_open?
+
+      remove_foreign_key_if_exists(:ci_job_token_project_scope_links, :projects, name: "fk_rails_6904b38465")
+    end
+  end
+
+  def down
+    add_concurrent_foreign_key(:ci_job_token_project_scope_links, :projects, name: "fk_rails_6904b38465", column: :target_project_id, target_column: :id, on_delete: :cascade)
+  end
+end

db/schema_migrations/20220126201752

+7731772dfac065a60c1626707913ddf6ff632bb69dd5ed6534e8d29e4e03c573
\ No newline at end of file

db/structure.sql

@@ -30649,9 +30649,6 @@ ALTER TABLE ONLY resource_iteration_events
 ALTER TABLE ONLY geo_hashed_storage_migrated_events
     ADD CONSTRAINT fk_rails_687ed7d7c5 FOREIGN KEY (project_id) REFERENCES projects(id) ON DELETE CASCADE;
 
-ALTER TABLE ONLY ci_job_token_project_scope_links
-    ADD CONSTRAINT fk_rails_6904b38465 FOREIGN KEY (target_project_id) REFERENCES projects(id) ON DELETE CASCADE;
-
 ALTER TABLE ONLY plan_limits
     ADD CONSTRAINT fk_rails_69f8b6184f FOREIGN KEY (plan_id) REFERENCES plans(id) ON DELETE CASCADE;
 

lib/gitlab/database/gitlab_loose_foreign_keys.yml

@@ -42,6 +42,9 @@ ci_job_token_project_scope_links:
   - table: projects
     column: source_project_id
     on_delete: async_delete
+  - table: projects
+    column: target_project_id
+    on_delete: async_delete
 ci_daily_build_group_report_results:
   - table: namespaces
     column: group_id

spec/lib/gitlab/database/no_cross_db_foreign_keys_spec.rb

@@ -18,7 +18,6 @@ RSpec.describe 'cross-database foreign keys' do
       ci_freeze_periods.project_id
       ci_job_artifacts.project_id
       ci_job_token_project_scope_links.added_by_id
-      ci_job_token_project_scope_links.target_project_id
       ci_pending_builds.namespace_id
       ci_pending_builds.project_id
       ci_pipeline_schedules.owner_id

spec/models/ci/job_token/project_scope_link_spec.rb

@@ -95,4 +95,11 @@ RSpec.describe Ci::JobToken::ProjectScopeLink do
       let!(:model) { create(:ci_job_token_project_scope_link, source_project: parent) }
     end
   end
+
+  context 'loose foreign key on ci_job_token_project_scope_links.target_project_id' do
+    it_behaves_like 'cleanup by a loose foreign key' do
+      let!(:parent) { create(:project) }
+      let!(:model) { create(:ci_job_token_project_scope_link, target_project: parent) }
+    end
+  end
 end