Fix n plus one issue ci build dast profile

What does this MR do and why?

As described in #346325 (closed), there are two N+1 issues when multiple builds with the dast_configuration keyword are present in the YAML file.

Example:

stages:
  - dast
dast:
  stage: dast
  dast_configuration:
    site_profile: dast_site_profile_name
    scanner_profile: dast_scanner_profile_name
  script:
    - exit 0
dast2:
  stage: dast
  dast_configuration:
    site_profile: another_dast_site_profile_name
    scanner_profile: another_dast_scanner_profile_name
  script:
    - exit 0

In order to fix these N+1 issues this Merge Request:

• Creates a service that takes several builds and profiles and associates them inside a single database insert.
• Extends the profiles finder to batch load profiles.

Before

SELECT "dast_site_profiles".* FROM "dast_site_profiles" WHERE "dast_site_profiles"."project_id" = 2 AND "dast_site_profiles"."name" = 'Portable Receiver 172ca0e6 - 1' ORDER BY "dast_site_profiles"."id" ASC LIMIT 1 /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/

SELECT "dast_sites".* FROM "dast_sites" WHERE "dast_sites"."id" = 3 /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/

SELECT "dast_scanner_profiles".* FROM "dast_scanner_profiles" WHERE "dast_scanner_profiles"."project_id" = 2 AND "dast_scanner_profiles"."name" = 'GPS Bridge 7848fd8e - 1' ORDER BY "dast_scanner_profiles"."id" ASC LIMIT 1 /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/

INSERT INTO "dast_site_profiles_builds" ("dast_site_profile_id", "ci_build_id") VALUES (3, 7) /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/

INSERT INTO "dast_scanner_profiles_builds" ("dast_scanner_profile_id", "ci_build_id") VALUES (3, 7) /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/


SELECT "dast_site_profiles".* FROM "dast_site_profiles" WHERE "dast_site_profiles"."project_id" = 2 AND "dast_site_profiles"."name" = 'Power Bridge a5ed6674 - 2' ORDER BY "dast_site_profiles"."id" ASC LIMIT 1 /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/

SELECT "dast_sites".* FROM "dast_sites" WHERE "dast_sites"."id" = 4 /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/

SELECT "dast_scanner_profiles".* FROM "dast_scanner_profiles" WHERE "dast_scanner_profiles"."project_id" = 2 AND "dast_scanner_profiles"."name" = 'Video System f5efa6ec - 2' ORDER BY "dast_scanner_profiles"."id" ASC LIMIT 1 /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/

INSERT INTO "dast_site_profiles_builds" ("dast_site_profile_id", "ci_build_id") VALUES (4, 8) /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/

INSERT INTO "dast_scanner_profiles_builds" ("dast_scanner_profile_id", "ci_build_id") VALUES (4, 8) /*application:test,correlation_id:1d5d62b143cc80539f1417a2e0b7c529,db_config_name:main*/

After

SELECT "dast_site_profiles".* FROM "dast_site_profiles" WHERE "dast_site_profiles"."project_id" = 1 AND "dast_site_profiles"."name" IN ('Power Bridge c1085309 - 1', 'Electric GPS Compressor f3adb06f - 2') 

SELECT "dast_sites".* FROM "dast_sites" WHERE "dast_sites"."id" IN (2, 1) 

SELECT "dast_scanner_profiles".* FROM "dast_scanner_profiles" WHERE "dast_scanner_profiles"."name" IN ('Auto Case 657d053e - 1', 'Digital Transmitter 3c2c49e0 - 2') 

INSERT INTO "dast_site_profiles_builds" ("ci_build_id","dast_site_profile_id") VALUES (3, 1), (4, 2) ON CONFLICT ("ci_build_id") DO NOTHING RETURNING "dast_site_profile_id","ci_build_id" 

INSERT INTO "dast_scanner_profiles_builds" ("ci_build_id","dast_scanner_profile_id") VALUES (3, 1), (4, 2) ON CONFLICT ("ci_build_id") DO NOTHING RETURNING "dast_scanner_profile_id","ci_build_id" 

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ee/app/services/app_sec/dast/profiles/create_associations_service.rb

@@ -4,23 +4,27 @@ module AppSec
   module Dast
     module Profiles
       class CreateAssociationsService < BaseProjectService
-        def initialize(dast_profiles, builds)
-          @dast_profiles = dast_profiles
+        def initialize(dast_profile, builds)
+          @dast_profile = dast_profile
           @builds = builds
+          @dast_site_profiles_builds = []
+          @dast_scanner_profiles_builds = []
         end
 
-        def associate_dast_profiles_to_builds
-          dast_site_profiles_builds
-          Dast::SiteProfilesBuild.insert_all!(dast_site_profiles_builds)
+        def execute
+          @builds.each do |build|
+            next unless build.is_a?(::Ci::Build)
 
-          dast_scanner_profiles_builds
-          Dast::ScannerProfilesBuild.insert_all!(dast_scanner_profiles_builds)
-        end
+            dast_site_profile = @dast_profile.payload[:dast_site_profile]
+            @dast_site_profiles_builds.append(Dast::SiteProfilesBuild.new(ci_build: build, dast_site_profile: dast_site_profile)) if dast_site_profile
 
-        def dast_site_profiles_builds
-        end
+            dast_scanner_profile = @dast_profile.payload[:dast_scanner_profile]
+            @dast_scanner_profiles_builds.append(Dast::ScannerProfilesBuild.new(ci_build: build, dast_scanner_profile: dast_scanner_profile)) if dast_scanner_profile
+          end
+
+          Dast::SiteProfilesBuild.insert_all!(@dast_site_profiles_builds)
 
-        def dast_scanner_profiles_builds
+          Dast::ScannerProfilesBuild.insert_all!(@dast_scanner_profiles_builds)
         end
       end
     end