Swap FK dast_profiles_pipelines to ci_pipelines for LFK

Swaps FK for dast_profiles_pipelines.ci_pipeline_id to ci_pipelines

Changelog: changed

db/post_migrate/20220119193130_remove_ci_pipelines_dast_profiles_pipelines_ci_pipeline_id_fk.rb

+# frozen_string_literal: true
+
+class RemoveCiPipelinesDastProfilesPipelinesCiPipelineIdFk < Gitlab::Database::Migration[1.0]
+  disable_ddl_transaction!
+
+  def up
+    with_lock_retries do
+      execute('LOCK ci_pipelines, dast_profiles_pipelines IN ACCESS EXCLUSIVE MODE')
+
+      remove_foreign_key_if_exists(:dast_profiles_pipelines, :ci_pipelines, name: "fk_a60cad829d")
+    end
+  end
+
+  def down
+    add_concurrent_foreign_key(:dast_profiles_pipelines, :ci_pipelines, name: "fk_a60cad829d", column: :ci_pipeline_id, target_column: :id, on_delete: :cascade)
+  end
+end

db/schema_migrations/20220119193130

+c991eda1b3a972a7da9bdbd5e1f9957394c52246b78d793b4b35fdec9daf6acd
\ No newline at end of file

db/structure.sql

@@ -29663,9 +29663,6 @@ ALTER TABLE ONLY users
 ALTER TABLE ONLY lfs_objects_projects
     ADD CONSTRAINT fk_a56e02279c FOREIGN KEY (lfs_object_id) REFERENCES lfs_objects(id) ON DELETE RESTRICT NOT VALID;
 
-ALTER TABLE ONLY dast_profiles_pipelines
-    ADD CONSTRAINT fk_a60cad829d FOREIGN KEY (ci_pipeline_id) REFERENCES ci_pipelines(id) ON DELETE CASCADE;
-
 ALTER TABLE ONLY merge_requests
     ADD CONSTRAINT fk_a6963e8447 FOREIGN KEY (target_project_id) REFERENCES projects(id) ON DELETE CASCADE;
 

ee/spec/models/dast/profiles_pipeline_spec.rb

@@ -9,4 +9,11 @@ RSpec.describe Dast::ProfilesPipeline, type: :model do
     it { is_expected.to belong_to(:ci_pipeline).class_name('Ci::Pipeline').required }
     it { is_expected.to belong_to(:dast_profile).class_name('Dast::Profile').required }
   end
+
+  context 'loose foreign key on dast_profiles_pipelines.ci_pipeline_id' do
+    it_behaves_like 'cleanup by a loose foreign key' do
+      let!(:parent) { create(:ci_pipeline) }
+      let!(:model) { create(:dast_profiles_pipeline, ci_pipeline: parent) }
+    end
+  end
 end

spec/lib/gitlab/database/no_cross_db_foreign_keys_spec.rb

@@ -41,7 +41,6 @@ RSpec.describe 'cross-database foreign keys' do
       ci_triggers.project_id
       ci_unit_tests.project_id
       ci_variables.project_id
-      dast_profiles_pipelines.ci_pipeline_id
       dast_site_profiles_pipelines.ci_pipeline_id
       external_pull_requests.project_id
       vulnerability_feedback.pipeline_id