diff --git a/.gitlab/ci/rules.gitlab-ci.yml b/.gitlab/ci/rules.gitlab-ci.yml
index 5c9be5b1e9f..4788359e6fa 100644
--- a/.gitlab/ci/rules.gitlab-ci.yml
+++ b/.gitlab/ci/rules.gitlab-ci.yml
@@ -4,8 +4,9 @@
 .if-not-canonical-namespace: &if-not-canonical-namespace
   if: '$CI_PROJECT_NAMESPACE !~ /^gitlab(-org)?($|\/)/'
 
-.if-not-ee: &if-not-ee
-  if: '$CI_PROJECT_NAME !~ /^gitlab(-ee)?$/'
+.exists-ee: &exists-ee
+  exists:
+    - ee/**/*
 
 .if-not-foss: &if-not-foss
   if: '$CI_PROJECT_NAME != "gitlab-foss" && $CI_PROJECT_NAME != "gitlab-ce" && $CI_PROJECT_NAME != "gitlabhq"'
@@ -311,13 +312,14 @@
 ######################
 .build-images:rules:build-qa-image:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-and-security-merge-request
+      <<: *exists-ee
       changes: *ci-build-images-patterns
     - <<: *if-dot-com-gitlab-org-and-security-merge-request
+      <<: *exists-ee
       changes: *code-qa-patterns
     - <<: *if-dot-com-gitlab-org-schedule
+      <<: *exists-ee
 
 .build-images:rules:build-assets-image:
   rules:
@@ -363,9 +365,8 @@
 
 .dev-fixtures:rules:ee-only:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-default-refs
+      <<: *exists-ee
       changes: *code-backstage-patterns
       when: on_success
 
@@ -391,9 +392,8 @@
 
 .graphql:rules:graphql-verify:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-default-refs
+      <<: *exists-ee
       changes: *code-backstage-qa-patterns
       when: on_success
 
@@ -414,9 +414,8 @@
 
 .frontend:rules:compile-test-assets-as-if-foss:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request  # Always run for MRs since `compile-test-assets as-if-foss` is either needed by `rspec foss-impact` or the `rspec * as-if-foss` jobs.
+      <<: *exists-ee
       changes: *code-backstage-qa-patterns
 
 .frontend:rules:default-frontend-jobs:
@@ -426,39 +425,37 @@
 
 .frontend:rules:default-frontend-jobs-ee:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-default-refs
+      <<: *exists-ee
       changes: *code-backstage-patterns
 
 .frontend:rules:default-frontend-jobs-as-if-foss:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *ci-patterns
 
 .frontend:rules:eslint-as-if-foss:
   rules:
-    - <<: *if-not-ee
-      when: never
-    - <<: *if-merge-request-title-as-if-foss
-      when: never
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *frontend-patterns
 
 .frontend:rules:ee-mr-and-default-branch-only:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
       when: always
     - <<: *if-default-branch-refs
+      <<: *exists-ee
       changes: *code-backstage-patterns
 
 .frontend:rules:qa-frontend-node:
@@ -499,9 +496,8 @@
 ###############
 .pages:rules:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-default-branch-schedule-2-hourly
+      <<: *exists-ee
 
 ############
 # QA rules #
@@ -514,30 +510,34 @@
 
 .qa:rules:as-if-foss:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *code-qa-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *ci-patterns
 
 .qa:rules:package-and-qa:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-and-security-merge-request
+      <<: *exists-ee
       changes: *ci-qa-patterns
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-and-security-merge-request
+      <<: *exists-ee
       changes: *qa-patterns
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-and-security-merge-request
+      <<: *exists-ee
       changes: *code-patterns
       when: manual
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-schedule
+      <<: *exists-ee
       allow_failure: true
 
 ###############
@@ -649,15 +649,13 @@
 
 .rails:rules:ee-only-migration:
   rules:
-    - <<: *if-not-ee
-      when: never
-    - changes: *db-patterns
+    - <<: *exists-ee
+      changes: *db-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:ee-only-migration:minimal:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-rspec-minimal-disabled
       when: never
     - <<: *if-merge-request-title-run-all-rspec
@@ -666,19 +664,18 @@
       changes: *ci-patterns
       when: never
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *db-patterns
 
 .rails:rules:ee-only-unit:
   rules:
-    - <<: *if-not-ee
-      when: never
-    - changes: *backend-patterns
+    - <<: *exists-ee
+      changes: *backend-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:ee-only-unit:minimal:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-rspec-minimal-disabled
       when: never
     - <<: *if-merge-request-title-run-all-rspec
@@ -687,19 +684,18 @@
       changes: *ci-patterns
       when: never
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *backend-patterns
 
 .rails:rules:ee-only-integration:
   rules:
-    - <<: *if-not-ee
-      when: never
-    - changes: *backend-patterns
+    - <<: *exists-ee
+      changes: *backend-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:ee-only-integration:minimal:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-rspec-minimal-disabled
       when: never
     - <<: *if-merge-request-title-run-all-rspec
@@ -708,19 +704,18 @@
       changes: *ci-patterns
       when: never
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *backend-patterns
 
 .rails:rules:ee-only-system:
   rules:
-    - <<: *if-not-ee
-      when: never
-    - changes: *code-backstage-patterns
+    - <<: *exists-ee
+      changes: *code-backstage-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:ee-only-system:minimal:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-rspec-minimal-disabled
       when: never
     - <<: *if-merge-request-title-run-all-rspec
@@ -729,129 +724,143 @@
       changes: *ci-patterns
       when: never
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
 
 .rails:rules:as-if-foss-migration:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *db-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
       changes: *db-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *ci-patterns
 
 .rails:rules:as-if-foss-migration:minimal:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-rspec-minimal-disabled
       when: never
     - <<: *if-merge-request
       changes: *ci-patterns
       when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *db-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
       changes: *db-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:as-if-foss-unit:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *backend-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
       changes: *backend-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *ci-patterns
 
 .rails:rules:as-if-foss-unit:minimal:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-rspec-minimal-disabled
       when: never
     - <<: *if-merge-request
       changes: *ci-patterns
       when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *backend-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
       changes: *backend-patterns
-    - <<: *if-merge-request-title-run-all-rspec
 
 .rails:rules:as-if-foss-integration:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *backend-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
       changes: *backend-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *ci-patterns
 
 .rails:rules:as-if-foss-integration:minimal:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-rspec-minimal-disabled
       when: never
     - <<: *if-merge-request
       changes: *ci-patterns
       when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *backend-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
       changes: *backend-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:as-if-foss-system:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
       changes: *code-backstage-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *ci-patterns
 
 .rails:rules:as-if-foss-system:minimal:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-rspec-minimal-disabled
       when: never
     - <<: *if-merge-request
       changes: *ci-patterns
       when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
       changes: *code-backstage-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:ee-and-foss-db-library-code:
   rules:
-    - changes: *db-library-patterns
+    - <<: *exists-ee
+      changes: *db-library-patterns
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:ee-mr-and-default-branch-only:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
     - <<: *if-default-branch-refs
+      <<: *exists-ee
       changes: *code-backstage-patterns
 
 .rails:rules:detect-tests:
@@ -861,13 +870,13 @@
 
 .rails:rules:rspec-foss-impact:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-title-as-if-foss
       when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
 
 .rails:rules:rspec fail-fast:
@@ -876,11 +885,11 @@
       when: never
     - <<: *if-rspec-fail-fast-skipped
       when: never
-    - <<: *if-not-ee
-      when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
 
 .rails:rules:fail-pipeline-early:
@@ -889,40 +898,41 @@
       when: never
     - <<: *if-rspec-fail-fast-skipped
       when: never
-    - <<: *if-not-ee
-      when: never
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
       when: on_failure
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
       when: on_failure
 
 .rails:rules:deprecations:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-default-branch-schedule-nightly
+      <<: *exists-ee
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:rspec-coverage:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *code-backstage-patterns
       when: always
     - <<: *if-default-branch-schedule-2-hourly
+      <<: *exists-ee
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
       when: always
 
 .rails:rules:rspec-feature-flags:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-default-branch-schedule-2-hourly
+      <<: *exists-ee
       allow_failure: true
     - <<: *if-merge-request-title-run-all-rspec
+      <<: *exists-ee
 
 .rails:rules:default-branch-schedule-nightly--code-backstage:
   rules:
@@ -932,10 +942,10 @@
 
 .rails:rules:default-branch-schedule-nightly--code-backstage-ee-only:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-default-branch-schedule-nightly
+      <<: *exists-ee
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: [".gitlab/ci/rails.gitlab-ci.yml"]
 
 #########################
@@ -948,13 +958,14 @@
 
 .static-analysis:rules:as-if-foss:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-merge-request-title-as-if-foss
+      <<: *exists-ee
       changes: *code-backstage-qa-patterns
     - <<: *if-security-merge-request
+      <<: *exists-ee
       changes: *code-backstage-qa-patterns
     - <<: *if-merge-request
+      <<: *exists-ee
       changes: *ci-patterns
 
 #######################
@@ -1060,108 +1071,116 @@
 ################
 .review:rules:review-build-cng:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *ci-review-patterns
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *frontend-patterns
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-patterns
       when: manual
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *qa-patterns
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-schedule
+      <<: *exists-ee
 
 .review:rules:review-deploy:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *ci-review-patterns
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *frontend-patterns
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-patterns
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *qa-patterns
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-schedule
+      <<: *exists-ee
       allow_failure: true
 
 .review:rules:review-performance:
   rules:
     - if: '$DAST_RUN == "true"'  # Skip this job when DAST is run
       when: never
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *ci-review-patterns
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *frontend-patterns
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-qa-patterns
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-schedule
+      <<: *exists-ee
       allow_failure: true
 
 .review:rules:review-stop-failed-deployment:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-qa-patterns
 
 .review:rules:review-qa-smoke:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *ci-review-patterns
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *frontend-patterns
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-qa-patterns
       allow_failure: true
 
 .review:rules:review-qa-all:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-patterns
       when: manual
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *qa-patterns
       allow_failure: true
 
 .review:rules:review-cleanup:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-qa-patterns
       when: manual
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-schedule
+      <<: *exists-ee
       allow_failure: true
 
 .review:rules:review-stop:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-dot-com-gitlab-org-merge-request
+      <<: *exists-ee
       changes: *code-qa-patterns
       when: manual
       allow_failure: true
     - <<: *if-dot-com-gitlab-org-schedule
+      <<: *exists-ee
       allow_failure: true
 
 .review:rules:danger:
@@ -1204,9 +1223,8 @@
 
 .setup:rules:verify-tests-yml:
   rules:
-    - <<: *if-not-ee
-      when: never
     - <<: *if-default-refs
+      <<: *exists-ee
       changes: *code-backstage-patterns
       when: on_success
 
@@ -1221,12 +1239,12 @@
 
 .test-metadata:rules:update-tests-metadata:
   rules:
-    - <<: *if-not-ee
-      when: never
-    - changes:
+    - <<: *exists-ee
+      changes:
         - ".gitlab/ci/test-metadata.gitlab-ci.yml"
         - "scripts/rspec_helpers.sh"
     - <<: *if-dot-com-ee-schedule
+      <<: *exists-ee
 
 ###################
 # workhorse rules #
diff --git a/.rubocop_manual_todo.yml b/.rubocop_manual_todo.yml
index 6904aea4f09..f410daa09e2 100644
--- a/.rubocop_manual_todo.yml
+++ b/.rubocop_manual_todo.yml
@@ -13,7 +13,6 @@
 # WIP See https://gitlab.com/gitlab-org/gitlab/-/issues/322903
 Graphql/Descriptions:
   Exclude:
-    - 'app/graphql/types/snippets/blob_action_enum.rb'
     - 'ee/app/graphql/ee/types/list_limit_metric_enum.rb'
     - 'ee/app/graphql/types/epic_state_enum.rb'
     - 'ee/app/graphql/types/health_status_enum.rb'
@@ -1655,21 +1654,17 @@ Gitlab/NamespacedClass:
     - 'app/models/project_repository_storage_move.rb'
     - 'app/models/project_services/alerts_service.rb'
     - 'app/models/project_services/alerts_service_data.rb'
-    - 'app/models/project_services/bugzilla_service.rb'
     - 'app/models/project_services/buildkite_service.rb'
     - 'app/models/project_services/chat_notification_service.rb'
     - 'app/models/project_services/ci_service.rb'
-    - 'app/models/project_services/custom_issue_tracker_service.rb'
     - 'app/models/project_services/discord_service.rb'
     - 'app/models/project_services/drone_ci_service.rb'
-    - 'app/models/project_services/ewm_service.rb'
     - 'app/models/project_services/external_wiki_service.rb'
     - 'app/models/project_services/flowdock_service.rb'
     - 'app/models/project_services/hangouts_chat_service.rb'
     - 'app/models/project_services/hipchat_service.rb'
     - 'app/models/project_services/irker_service.rb'
     - 'app/models/project_services/issue_tracker_data.rb'
-    - 'app/models/project_services/issue_tracker_service.rb'
     - 'app/models/project_services/jenkins_service.rb'
     - 'app/models/project_services/jira_service.rb'
     - 'app/models/project_services/jira_tracker_data.rb'
@@ -1679,21 +1674,18 @@ Gitlab/NamespacedClass:
     - 'app/models/project_services/mock_ci_service.rb'
     - 'app/models/project_services/mock_monitoring_service.rb'
     - 'app/models/project_services/monitoring_service.rb'
-    - 'app/models/project_services/open_project_service.rb'
     - 'app/models/project_services/open_project_tracker_data.rb'
     - 'app/models/project_services/packagist_service.rb'
     - 'app/models/project_services/pipelines_email_service.rb'
     - 'app/models/project_services/pivotaltracker_service.rb'
     - 'app/models/project_services/prometheus_service.rb'
     - 'app/models/project_services/pushover_service.rb'
-    - 'app/models/project_services/redmine_service.rb'
     - 'app/models/project_services/slack_service.rb'
     - 'app/models/project_services/slack_slash_commands_service.rb'
     - 'app/models/project_services/slash_commands_service.rb'
     - 'app/models/project_services/teamcity_service.rb'
     - 'app/models/project_services/unify_circuit_service.rb'
     - 'app/models/project_services/webex_teams_service.rb'
-    - 'app/models/project_services/youtrack_service.rb'
     - 'app/models/project_setting.rb'
     - 'app/models/project_snippet.rb'
     - 'app/models/project_statistics.rb'
diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 26b12f26943..39b1518558d 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -152,7 +152,7 @@ Lint/MissingCopEnableDirective:
 Lint/MixedRegexpCaptureTypes:
   Exclude:
     - 'app/models/alert_management/alert.rb'
-    - 'app/models/project_services/ewm_service.rb'
+    - 'app/models/integrations/ewm.rb'
     - 'app/uploaders/file_uploader.rb'
     - 'ee/lib/gitlab/code_owners/reference_extractor.rb'
     - 'lib/gitlab/ci/pipeline/expression/lexeme/string.rb'
diff --git a/app/assets/javascripts/admin/users/components/users_table.vue b/app/assets/javascripts/admin/users/components/users_table.vue
index 2fd96e38f8e..07eeb50fb1f 100644
--- a/app/assets/javascripts/admin/users/components/users_table.vue
+++ b/app/assets/javascripts/admin/users/components/users_table.vue
@@ -112,7 +112,7 @@ export default {
       :empty-text="s__('AdminUsers|No users found')"
       show-empty
       stacked="md"
-      data-qa-selector="user_row_content"
+      :tbody-tr-attr="{ 'data-qa-selector': 'user_row_content' }"
     >
       <template #cell(name)="{ item: user }">
         <user-avatar :user="user" :admin-user-path="paths.adminUser" />
diff --git a/app/graphql/types/snippets/blob_action_enum.rb b/app/graphql/types/snippets/blob_action_enum.rb
index e3f89920f16..0defd521acb 100644
--- a/app/graphql/types/snippets/blob_action_enum.rb
+++ b/app/graphql/types/snippets/blob_action_enum.rb
@@ -6,10 +6,10 @@ module Types
       graphql_name 'SnippetBlobActionEnum'
       description 'Type of a snippet blob input action'
 
-      value 'create', value: :create
-      value 'update', value: :update
-      value 'delete', value: :delete
-      value 'move', value: :move
+      value 'create', description: 'Create a snippet blob.', value: :create
+      value 'update', description: 'Update a snippet blob.', value: :update
+      value 'delete', description: 'Delete a snippet blob.', value: :delete
+      value 'move', description: 'Move a snippet blob.', value: :move
     end
   end
 end
diff --git a/app/models/concerns/mentionable/reference_regexes.rb b/app/models/concerns/mentionable/reference_regexes.rb
index e33b6db0103..cb8baec3113 100644
--- a/app/models/concerns/mentionable/reference_regexes.rb
+++ b/app/models/concerns/mentionable/reference_regexes.rb
@@ -29,7 +29,7 @@ module Mentionable
 
     def self.external_pattern
       strong_memoize(:external_pattern) do
-        issue_pattern = IssueTrackerService.reference_pattern
+        issue_pattern = Integrations::IssueTracker.reference_pattern
         link_patterns = URI::DEFAULT_PARSER.make_regexp(%w(http https))
         reference_pattern(link_patterns, issue_pattern)
       end
diff --git a/app/models/integrations/bugzilla.rb b/app/models/integrations/bugzilla.rb
new file mode 100644
index 00000000000..cc6b9cf4cbd
--- /dev/null
+++ b/app/models/integrations/bugzilla.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+module Integrations
+  class Bugzilla < IssueTracker
+    include ActionView::Helpers::UrlHelper
+
+    validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
+
+    def title
+      'Bugzilla'
+    end
+
+    def description
+      s_("IssueTracker|Use Bugzilla as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/bugzilla'), target: '_blank', rel: 'noopener noreferrer'
+      s_("IssueTracker|Use Bugzilla as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'bugzilla'
+    end
+  end
+end
diff --git a/app/models/integrations/custom_issue_tracker.rb b/app/models/integrations/custom_issue_tracker.rb
new file mode 100644
index 00000000000..9443e111cc7
--- /dev/null
+++ b/app/models/integrations/custom_issue_tracker.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Integrations
+  class CustomIssueTracker < IssueTracker
+    include ActionView::Helpers::UrlHelper
+    validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
+
+    def title
+      s_('IssueTracker|Custom issue tracker')
+    end
+
+    def description
+      s_("IssueTracker|Use a custom issue tracker as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/custom_issue_tracker'), target: '_blank', rel: 'noopener noreferrer'
+      s_('IssueTracker|Use a custom issue tracker that is not in the integration list. %{docs_link}').html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'custom_issue_tracker'
+    end
+  end
+end
diff --git a/app/models/integrations/ewm.rb b/app/models/integrations/ewm.rb
new file mode 100644
index 00000000000..2a5a9ca8683
--- /dev/null
+++ b/app/models/integrations/ewm.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+module Integrations
+  class Ewm < IssueTracker
+    include ActionView::Helpers::UrlHelper
+
+    validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
+
+    def self.reference_pattern(only_long: true)
+      @reference_pattern ||= %r{(?<issue>\b(bug|task|work item|workitem|rtcwi|defect)\b\s+\d+)}i
+    end
+
+    def title
+      'EWM'
+    end
+
+    def description
+      s_("IssueTracker|Use IBM Engineering Workflow Management as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/ewm'), target: '_blank', rel: 'noopener noreferrer'
+      s_("IssueTracker|Use IBM Engineering Workflow Management as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'ewm'
+    end
+
+    def can_test?
+      false
+    end
+
+    def issue_url(iid)
+      issues_url.gsub(':id', iid.to_s.split(' ')[-1])
+    end
+  end
+end
diff --git a/app/models/integrations/issue_tracker.rb b/app/models/integrations/issue_tracker.rb
new file mode 100644
index 00000000000..f63dfa6aace
--- /dev/null
+++ b/app/models/integrations/issue_tracker.rb
@@ -0,0 +1,154 @@
+# frozen_string_literal: true
+
+module Integrations
+  class IssueTracker < Integration
+    validate :one_issue_tracker, if: :activated?, on: :manual_change
+
+    # TODO: we can probably just delegate as part of
+    # https://gitlab.com/gitlab-org/gitlab/issues/29404
+    data_field :project_url, :issues_url, :new_issue_url
+
+    default_value_for :category, 'issue_tracker'
+
+    before_validation :handle_properties
+    before_validation :set_default_data, on: :create
+
+    # Pattern used to extract links from comments
+    # Override this method on services that uses different patterns
+    # This pattern does not support cross-project references
+    # The other code assumes that this pattern is a superset of all
+    # overridden patterns. See ReferenceRegexes.external_pattern
+    def self.reference_pattern(only_long: false)
+      if only_long
+        /(\b[A-Z][A-Z0-9_]*-)#{Gitlab::Regex.issue}/
+      else
+        /(\b[A-Z][A-Z0-9_]*-|#{Issue.reference_prefix})#{Gitlab::Regex.issue}/
+      end
+    end
+
+    def handle_properties
+      # this has been moved from initialize_properties and should be improved
+      # as part of https://gitlab.com/gitlab-org/gitlab/issues/29404
+      return unless properties
+
+      @legacy_properties_data = properties.dup
+      data_values = properties.slice!('title', 'description')
+      data_values.reject! { |key| data_fields.changed.include?(key) }
+      data_values.slice!(*data_fields.attributes.keys)
+      data_fields.assign_attributes(data_values) if data_values.present?
+
+      self.properties = {}
+    end
+
+    def legacy_properties_data
+      @legacy_properties_data ||= {}
+    end
+
+    def supports_data_fields?
+      true
+    end
+
+    def data_fields
+      issue_tracker_data || self.build_issue_tracker_data
+    end
+
+    def default?
+      default
+    end
+
+    def issue_url(iid)
+      issues_url.gsub(':id', iid.to_s)
+    end
+
+    def issue_tracker_path
+      project_url
+    end
+
+    def new_issue_path
+      new_issue_url
+    end
+
+    def issue_path(iid)
+      issue_url(iid)
+    end
+
+    def fields
+      [
+        { type: 'text', name: 'project_url', title: _('Project URL'), help: s_('IssueTracker|The URL to the project in the external issue tracker.'), required: true },
+        { type: 'text', name: 'issues_url', title: s_('IssueTracker|Issue URL'), help: s_('IssueTracker|The URL to view an issue in the external issue tracker. Must contain %{colon_id}.') % { colon_id: '<code>:id</code>'.html_safe }, required: true },
+        { type: 'text', name: 'new_issue_url', title: s_('IssueTracker|New issue URL'), help: s_('IssueTracker|The URL to create an issue in the external issue tracker.'), required: true }
+      ]
+    end
+
+    def initialize_properties
+      {}
+    end
+
+    # Initialize with default properties values
+    def set_default_data
+      return unless issues_tracker.present?
+
+      # we don't want to override if we have set something
+      return if project_url || issues_url || new_issue_url
+
+      data_fields.project_url = issues_tracker['project_url']
+      data_fields.issues_url = issues_tracker['issues_url']
+      data_fields.new_issue_url = issues_tracker['new_issue_url']
+    end
+
+    def self.supported_events
+      %w(push)
+    end
+
+    def execute(data)
+      return unless supported_events.include?(data[:object_kind])
+
+      message = "#{self.type} was unable to reach #{self.project_url}. Check the url and try again."
+      result = false
+
+      begin
+        response = Gitlab::HTTP.head(self.project_url, verify: true)
+
+        if response
+          message = "#{self.type} received response #{response.code} when attempting to connect to #{self.project_url}"
+          result = true
+        end
+      rescue Gitlab::HTTP::Error, Timeout::Error, SocketError, Errno::ECONNRESET, Errno::ECONNREFUSED, OpenSSL::SSL::SSLError => error
+        message = "#{self.type} had an error when trying to connect to #{self.project_url}: #{error.message}"
+      end
+      log_info(message)
+      result
+    end
+
+    def support_close_issue?
+      false
+    end
+
+    def support_cross_reference?
+      false
+    end
+
+    private
+
+    def enabled_in_gitlab_config
+      Gitlab.config.issues_tracker &&
+        Gitlab.config.issues_tracker.values.any? &&
+        issues_tracker
+    end
+
+    def issues_tracker
+      Gitlab.config.issues_tracker[to_param]
+    end
+
+    def one_issue_tracker
+      return if template? || instance?
+      return if project.blank?
+
+      if project.integrations.external_issue_trackers.where.not(id: id).any?
+        errors.add(:base, _('Another issue tracker is already in use. Only one issue tracker service can be active at a time'))
+      end
+    end
+  end
+end
+
+Integrations::IssueTracker.prepend_mod_with('Integrations::IssueTracker')
diff --git a/app/models/integrations/open_project.rb b/app/models/integrations/open_project.rb
new file mode 100644
index 00000000000..78bbcd6d876
--- /dev/null
+++ b/app/models/integrations/open_project.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+module Integrations
+  class OpenProject < IssueTracker
+    validates :url, public_url: true, presence: true, if: :activated?
+    validates :api_url, public_url: true, allow_blank: true, if: :activated?
+    validates :token, presence: true, if: :activated?
+    validates :project_identifier_code, presence: true, if: :activated?
+
+    data_field :url, :api_url, :token, :closed_status_id, :project_identifier_code
+
+    def data_fields
+      open_project_tracker_data || self.build_open_project_tracker_data
+    end
+
+    def self.to_param
+      'open_project'
+    end
+  end
+end
diff --git a/app/models/integrations/redmine.rb b/app/models/integrations/redmine.rb
new file mode 100644
index 00000000000..98daccf3d5e
--- /dev/null
+++ b/app/models/integrations/redmine.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Integrations
+  class Redmine < IssueTracker
+    include ActionView::Helpers::UrlHelper
+    validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
+
+    def title
+      'Redmine'
+    end
+
+    def description
+      s_("IssueTracker|Use Redmine as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/redmine'), target: '_blank', rel: 'noopener noreferrer'
+      s_('IssueTracker|Use Redmine as the issue tracker. %{docs_link}').html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'redmine'
+    end
+  end
+end
diff --git a/app/models/integrations/youtrack.rb b/app/models/integrations/youtrack.rb
new file mode 100644
index 00000000000..14cc573dfae
--- /dev/null
+++ b/app/models/integrations/youtrack.rb
@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+module Integrations
+  class Youtrack < IssueTracker
+    include ActionView::Helpers::UrlHelper
+
+    validates :project_url, :issues_url, presence: true, public_url: true, if: :activated?
+
+    # {PROJECT-KEY}-{NUMBER} Examples: YT-1, PRJ-1, gl-030
+    def self.reference_pattern(only_long: false)
+      if only_long
+        /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)/
+      else
+        /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)|(#{Issue.reference_prefix}#{Gitlab::Regex.issue})/
+      end
+    end
+
+    def title
+      'YouTrack'
+    end
+
+    def description
+      s_("IssueTracker|Use YouTrack as this project's issue tracker.")
+    end
+
+    def help
+      docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/youtrack'), target: '_blank', rel: 'noopener noreferrer'
+      s_("IssueTracker|Use YouTrack as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
+    end
+
+    def self.to_param
+      'youtrack'
+    end
+
+    def fields
+      [
+        { type: 'text', name: 'project_url', title: _('Project URL'), help: s_('IssueTracker|The URL to the project in YouTrack.'), required: true },
+        { type: 'text', name: 'issues_url', title: s_('ProjectService|Issue URL'), help: s_('IssueTracker|The URL to view an issue in the YouTrack project. Must contain %{colon_id}.') % { colon_id: '<code>:id</code>'.html_safe }, required: true }
+      ]
+    end
+  end
+end
diff --git a/app/models/label.rb b/app/models/label.rb
index a46d6bc5c0f..ae8a706232a 100644
--- a/app/models/label.rb
+++ b/app/models/label.rb
@@ -9,6 +9,9 @@ class Label < ApplicationRecord
   include Sortable
   include FromUnion
   include Presentable
+  include IgnorableColumns
+
+  ignore_column :remove_on_close, remove_with: '14.1', remove_after: '2021-06-22'
 
   cache_markdown_field :description, pipeline: :single_line
 
diff --git a/app/models/project.rb b/app/models/project.rb
index 37f89653ceb..dc6e341d427 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -186,13 +186,17 @@ class Project < ApplicationRecord
   has_one :asana_service, class_name: 'Integrations::Asana'
   has_one :assembla_service, class_name: 'Integrations::Assembla'
   has_one :bamboo_service, class_name: 'Integrations::Bamboo'
+  has_one :bugzilla_service, class_name: 'Integrations::Bugzilla'
   has_one :campfire_service, class_name: 'Integrations::Campfire'
   has_one :confluence_service, class_name: 'Integrations::Confluence'
+  has_one :custom_issue_tracker_service, class_name: 'Integrations::CustomIssueTracker'
   has_one :datadog_service, class_name: 'Integrations::Datadog'
   has_one :emails_on_push_service, class_name: 'Integrations::EmailsOnPush'
+  has_one :ewm_service, class_name: 'Integrations::Ewm'
+  has_one :redmine_service, class_name: 'Integrations::Redmine'
+  has_one :youtrack_service, class_name: 'Integrations::Youtrack'
   has_one :discord_service
   has_one :drone_ci_service
-  has_one :ewm_service
   has_one :pipelines_email_service
   has_one :irker_service
   has_one :pivotaltracker_service
@@ -206,10 +210,6 @@ class Project < ApplicationRecord
   has_one :pushover_service
   has_one :jenkins_service
   has_one :jira_service
-  has_one :redmine_service
-  has_one :youtrack_service
-  has_one :custom_issue_tracker_service
-  has_one :bugzilla_service
   has_one :external_wiki_service
   has_one :prometheus_service, inverse_of: :project
   has_one :mock_ci_service
diff --git a/app/models/project_services/bugzilla_service.rb b/app/models/project_services/bugzilla_service.rb
deleted file mode 100644
index d1c56d2a4d5..00000000000
--- a/app/models/project_services/bugzilla_service.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# frozen_string_literal: true
-
-class BugzillaService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-
-  validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
-
-  def title
-    'Bugzilla'
-  end
-
-  def description
-    s_("IssueTracker|Use Bugzilla as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/bugzilla'), target: '_blank', rel: 'noopener noreferrer'
-    s_("IssueTracker|Use Bugzilla as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'bugzilla'
-  end
-end
diff --git a/app/models/project_services/custom_issue_tracker_service.rb b/app/models/project_services/custom_issue_tracker_service.rb
deleted file mode 100644
index 6f99d104904..00000000000
--- a/app/models/project_services/custom_issue_tracker_service.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# frozen_string_literal: true
-
-class CustomIssueTrackerService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-  validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
-
-  def title
-    s_('IssueTracker|Custom issue tracker')
-  end
-
-  def description
-    s_("IssueTracker|Use a custom issue tracker as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/custom_issue_tracker'), target: '_blank', rel: 'noopener noreferrer'
-    s_('IssueTracker|Use a custom issue tracker that is not in the integration list. %{docs_link}').html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'custom_issue_tracker'
-  end
-end
diff --git a/app/models/project_services/ewm_service.rb b/app/models/project_services/ewm_service.rb
deleted file mode 100644
index 90fcbb10d2b..00000000000
--- a/app/models/project_services/ewm_service.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-# frozen_string_literal: true
-
-class EwmService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-
-  validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
-
-  def self.reference_pattern(only_long: true)
-    @reference_pattern ||= %r{(?<issue>\b(bug|task|work item|workitem|rtcwi|defect)\b\s+\d+)}i
-  end
-
-  def title
-    'EWM'
-  end
-
-  def description
-    s_("IssueTracker|Use IBM Engineering Workflow Management as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/ewm'), target: '_blank', rel: 'noopener noreferrer'
-    s_("IssueTracker|Use IBM Engineering Workflow Management as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'ewm'
-  end
-
-  def can_test?
-    false
-  end
-
-  def issue_url(iid)
-    issues_url.gsub(':id', iid.to_s.split(' ')[-1])
-  end
-end
diff --git a/app/models/project_services/issue_tracker_service.rb b/app/models/project_services/issue_tracker_service.rb
deleted file mode 100644
index 099e3c336dd..00000000000
--- a/app/models/project_services/issue_tracker_service.rb
+++ /dev/null
@@ -1,152 +0,0 @@
-# frozen_string_literal: true
-
-class IssueTrackerService < Integration
-  validate :one_issue_tracker, if: :activated?, on: :manual_change
-
-  # TODO: we can probably just delegate as part of
-  # https://gitlab.com/gitlab-org/gitlab/issues/29404
-  data_field :project_url, :issues_url, :new_issue_url
-
-  default_value_for :category, 'issue_tracker'
-
-  before_validation :handle_properties
-  before_validation :set_default_data, on: :create
-
-  # Pattern used to extract links from comments
-  # Override this method on services that uses different patterns
-  # This pattern does not support cross-project references
-  # The other code assumes that this pattern is a superset of all
-  # overridden patterns. See ReferenceRegexes.external_pattern
-  def self.reference_pattern(only_long: false)
-    if only_long
-      /(\b[A-Z][A-Z0-9_]*-)#{Gitlab::Regex.issue}/
-    else
-      /(\b[A-Z][A-Z0-9_]*-|#{Issue.reference_prefix})#{Gitlab::Regex.issue}/
-    end
-  end
-
-  def handle_properties
-    # this has been moved from initialize_properties and should be improved
-    # as part of https://gitlab.com/gitlab-org/gitlab/issues/29404
-    return unless properties
-
-    @legacy_properties_data = properties.dup
-    data_values = properties.slice!('title', 'description')
-    data_values.reject! { |key| data_fields.changed.include?(key) }
-    data_values.slice!(*data_fields.attributes.keys)
-    data_fields.assign_attributes(data_values) if data_values.present?
-
-    self.properties = {}
-  end
-
-  def legacy_properties_data
-    @legacy_properties_data ||= {}
-  end
-
-  def supports_data_fields?
-    true
-  end
-
-  def data_fields
-    issue_tracker_data || self.build_issue_tracker_data
-  end
-
-  def default?
-    default
-  end
-
-  def issue_url(iid)
-    issues_url.gsub(':id', iid.to_s)
-  end
-
-  def issue_tracker_path
-    project_url
-  end
-
-  def new_issue_path
-    new_issue_url
-  end
-
-  def issue_path(iid)
-    issue_url(iid)
-  end
-
-  def fields
-    [
-      { type: 'text', name: 'project_url', title: _('Project URL'), help: s_('IssueTracker|The URL to the project in the external issue tracker.'), required: true },
-      { type: 'text', name: 'issues_url', title: s_('IssueTracker|Issue URL'), help: s_('IssueTracker|The URL to view an issue in the external issue tracker. Must contain %{colon_id}.') % { colon_id: '<code>:id</code>'.html_safe }, required: true },
-      { type: 'text', name: 'new_issue_url', title: s_('IssueTracker|New issue URL'), help: s_('IssueTracker|The URL to create an issue in the external issue tracker.'), required: true }
-    ]
-  end
-
-  def initialize_properties
-    {}
-  end
-
-  # Initialize with default properties values
-  def set_default_data
-    return unless issues_tracker.present?
-
-    # we don't want to override if we have set something
-    return if project_url || issues_url || new_issue_url
-
-    data_fields.project_url = issues_tracker['project_url']
-    data_fields.issues_url = issues_tracker['issues_url']
-    data_fields.new_issue_url = issues_tracker['new_issue_url']
-  end
-
-  def self.supported_events
-    %w(push)
-  end
-
-  def execute(data)
-    return unless supported_events.include?(data[:object_kind])
-
-    message = "#{self.type} was unable to reach #{self.project_url}. Check the url and try again."
-    result = false
-
-    begin
-      response = Gitlab::HTTP.head(self.project_url, verify: true)
-
-      if response
-        message = "#{self.type} received response #{response.code} when attempting to connect to #{self.project_url}"
-        result = true
-      end
-    rescue Gitlab::HTTP::Error, Timeout::Error, SocketError, Errno::ECONNRESET, Errno::ECONNREFUSED, OpenSSL::SSL::SSLError => error
-      message = "#{self.type} had an error when trying to connect to #{self.project_url}: #{error.message}"
-    end
-    log_info(message)
-    result
-  end
-
-  def support_close_issue?
-    false
-  end
-
-  def support_cross_reference?
-    false
-  end
-
-  private
-
-  def enabled_in_gitlab_config
-    Gitlab.config.issues_tracker &&
-      Gitlab.config.issues_tracker.values.any? &&
-      issues_tracker
-  end
-
-  def issues_tracker
-    Gitlab.config.issues_tracker[to_param]
-  end
-
-  def one_issue_tracker
-    return if template? || instance?
-    return if project.blank?
-
-    if project.integrations.external_issue_trackers.where.not(id: id).any?
-      errors.add(:base, _('Another issue tracker is already in use. Only one issue tracker service can be active at a time'))
-    end
-  end
-end
-
-IssueTrackerService.prepend_mod_with('IssueTrackerService')
diff --git a/app/models/project_services/jira_service.rb b/app/models/project_services/jira_service.rb
index 5cd6e79eb1d..ca193ab48da 100644
--- a/app/models/project_services/jira_service.rb
+++ b/app/models/project_services/jira_service.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Accessible as Project#external_issue_tracker
-class JiraService < IssueTrackerService
+class JiraService < Integrations::IssueTracker
   extend ::Gitlab::Utils::Override
   include Gitlab::Routing
   include ApplicationHelper
diff --git a/app/models/project_services/open_project_service.rb b/app/models/project_services/open_project_service.rb
deleted file mode 100644
index a24fbc1611d..00000000000
--- a/app/models/project_services/open_project_service.rb
+++ /dev/null
@@ -1,18 +0,0 @@
-# frozen_string_literal: true
-
-class OpenProjectService < IssueTrackerService
-  validates :url, public_url: true, presence: true, if: :activated?
-  validates :api_url, public_url: true, allow_blank: true, if: :activated?
-  validates :token, presence: true, if: :activated?
-  validates :project_identifier_code, presence: true, if: :activated?
-
-  data_field :url, :api_url, :token, :closed_status_id, :project_identifier_code
-
-  def data_fields
-    open_project_tracker_data || self.build_open_project_tracker_data
-  end
-
-  def self.to_param
-    'open_project'
-  end
-end
diff --git a/app/models/project_services/redmine_service.rb b/app/models/project_services/redmine_service.rb
deleted file mode 100644
index 7a0f500209c..00000000000
--- a/app/models/project_services/redmine_service.rb
+++ /dev/null
@@ -1,23 +0,0 @@
-# frozen_string_literal: true
-
-class RedmineService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-  validates :project_url, :issues_url, :new_issue_url, presence: true, public_url: true, if: :activated?
-
-  def title
-    'Redmine'
-  end
-
-  def description
-    s_("IssueTracker|Use Redmine as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/redmine'), target: '_blank', rel: 'noopener noreferrer'
-    s_('IssueTracker|Use Redmine as the issue tracker. %{docs_link}').html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'redmine'
-  end
-end
diff --git a/app/models/project_services/youtrack_service.rb b/app/models/project_services/youtrack_service.rb
deleted file mode 100644
index 9760a22a872..00000000000
--- a/app/models/project_services/youtrack_service.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-# frozen_string_literal: true
-
-class YoutrackService < IssueTrackerService
-  include ActionView::Helpers::UrlHelper
-
-  validates :project_url, :issues_url, presence: true, public_url: true, if: :activated?
-
-  # {PROJECT-KEY}-{NUMBER} Examples: YT-1, PRJ-1, gl-030
-  def self.reference_pattern(only_long: false)
-    if only_long
-      /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)/
-    else
-      /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)|(#{Issue.reference_prefix}#{Gitlab::Regex.issue})/
-    end
-  end
-
-  def title
-    'YouTrack'
-  end
-
-  def description
-    s_("IssueTracker|Use YouTrack as this project's issue tracker.")
-  end
-
-  def help
-    docs_link = link_to _('Learn more.'), Rails.application.routes.url_helpers.help_page_url('user/project/integrations/youtrack'), target: '_blank', rel: 'noopener noreferrer'
-    s_("IssueTracker|Use YouTrack as this project's issue tracker. %{docs_link}").html_safe % { docs_link: docs_link.html_safe }
-  end
-
-  def self.to_param
-    'youtrack'
-  end
-
-  def fields
-    [
-      { type: 'text', name: 'project_url', title: _('Project URL'), help: s_('IssueTracker|The URL to the project in YouTrack.'), required: true },
-      { type: 'text', name: 'issues_url', title: s_('ProjectService|Issue URL'), help: s_('IssueTracker|The URL to view an issue in the YouTrack project. Must contain %{colon_id}.') % { colon_id: '<code>:id</code>'.html_safe }, required: true }
-    ]
-  end
-end
diff --git a/changelogs/unreleased/327736-add-options-events-arguments-to-metric-yaml-defintion-for-filtering-data-in.yml b/changelogs/unreleased/327736-add-options-events-arguments-to-metric-yaml-defintion-for-filtering-data-in.yml
new file mode 100644
index 00000000000..c541425a620
--- /dev/null
+++ b/changelogs/unreleased/327736-add-options-events-arguments-to-metric-yaml-defintion-for-filtering-data-in.yml
@@ -0,0 +1,5 @@
+---
+title: Add options events to Redis HLL metrics for filtering data
+merge_request: 61685
+author:
+type: other
diff --git a/config/metrics/counts_28d/20210216180745_action_monthly_active_users_design_management.yml b/config/metrics/counts_28d/20210216180745_action_monthly_active_users_design_management.yml
index e4af1478c64..15bf70a3adf 100644
--- a/config/metrics/counts_28d/20210216180745_action_monthly_active_users_design_management.yml
+++ b/config/metrics/counts_28d/20210216180745_action_monthly_active_users_design_management.yml
@@ -1,16 +1,18 @@
 ---
 key_path: usage_activity_by_stage_monthly.create.action_monthly_active_users_design_management
-description:
+description: Monthly active users for design management
 product_section: dev
-product_stage: create
-product_group: group::knowledge
+product_stage: plan
+product_group: group::product planning
 product_category: design_management
 value_type: number
 status: data_available
 time_frame: 28d
-data_source:
+data_source: redis_hll
 distribution:
 - ce
+- ee
 tier:
 - free
-skip_validation: true
+- premium
+- ultimate
diff --git a/config/metrics/counts_28d/20210216181508_i_quickactions_approve_monthly.yml b/config/metrics/counts_28d/20210216181508_i_quickactions_approve_monthly.yml
index e828cefc644..77ae29b729a 100644
--- a/config/metrics/counts_28d/20210216181508_i_quickactions_approve_monthly.yml
+++ b/config/metrics/counts_28d/20210216181508_i_quickactions_approve_monthly.yml
@@ -9,7 +9,10 @@ value_type: number
 status: data_available
 time_frame: 28d
 data_source: redis_hll
-instrumentation_class: CountUsersUsingApproveQuickActionMetric
+instrumentation_class: RedisHLLMetric
+options:
+  events:
+    - i_quickactions_approve
 distribution:
 - ce
 - ee
diff --git a/config/metrics/counts_7d/20210216181506_i_quickactions_approve_weekly.yml b/config/metrics/counts_7d/20210216181506_i_quickactions_approve_weekly.yml
index 362404036a5..a8dbfcf2555 100644
--- a/config/metrics/counts_7d/20210216181506_i_quickactions_approve_weekly.yml
+++ b/config/metrics/counts_7d/20210216181506_i_quickactions_approve_weekly.yml
@@ -9,7 +9,10 @@ value_type: number
 status: data_available
 time_frame: 7d
 data_source: redis_hll
-instrumentation_class: CountUsersUsingApproveQuickActionMetric
+instrumentation_class: RedisHLLMetric
+options:
+  events:
+    - i_quickactions_approve
 distribution:
 - ce
 - ee
diff --git a/config/metrics/counts_all/20210216180740_design_management_designs_create.yml b/config/metrics/counts_all/20210216180740_design_management_designs_create.yml
index 1968f26c08e..bd631db3e6c 100644
--- a/config/metrics/counts_all/20210216180740_design_management_designs_create.yml
+++ b/config/metrics/counts_all/20210216180740_design_management_designs_create.yml
@@ -1,16 +1,18 @@
 ---
 key_path: counts.design_management_designs_create
-description:
+description: Number of designs that were created
 product_section: dev
-product_stage: create
-product_group: group::knowledge
+product_stage: plan
+product_group: group::product planning
 product_category: design_management
 value_type: number
 status: data_available
 time_frame: all
-data_source: database
+data_source: redis
 distribution:
 - ce
+- ee
 tier:
 - free
-skip_validation: true
+- premium
+- ultimate
diff --git a/config/metrics/counts_all/20210216180741_design_management_designs_update.yml b/config/metrics/counts_all/20210216180741_design_management_designs_update.yml
index 087afae23ad..1a11c45f22a 100644
--- a/config/metrics/counts_all/20210216180741_design_management_designs_update.yml
+++ b/config/metrics/counts_all/20210216180741_design_management_designs_update.yml
@@ -1,16 +1,18 @@
 ---
 key_path: counts.design_management_designs_update
-description:
+description: Number of updates to designs
 product_section: dev
-product_stage: create
-product_group: group::knowledge
+product_stage: plan
+product_group: group::product planning
 product_category: design_management
 value_type: number
 status: data_available
 time_frame: all
-data_source: database
+data_source: redis
 distribution:
 - ce
+- ee
 tier:
 - free
-skip_validation: true
+- premium
+- ultimate
diff --git a/config/metrics/counts_all/20210216180743_design_management_designs_delete.yml b/config/metrics/counts_all/20210216180743_design_management_designs_delete.yml
index 874e5a60243..0cbdac33f1e 100644
--- a/config/metrics/counts_all/20210216180743_design_management_designs_delete.yml
+++ b/config/metrics/counts_all/20210216180743_design_management_designs_delete.yml
@@ -1,16 +1,18 @@
 ---
 key_path: counts.design_management_designs_delete
-description:
+description: Number of designs that were deleted
 product_section: dev
-product_stage: create
-product_group: group::knowledge
+product_stage: plan
+product_group: group::product planning
 product_category: design_management
 value_type: number
 status: data_available
 time_frame: all
-data_source: database
+data_source: redis
 distribution:
 - ce
+- ee
 tier:
 - free
-skip_validation: true
+- premium
+- ultimate
diff --git a/config/metrics/schema.json b/config/metrics/schema.json
index e9a4a16ecd3..31ee74ac303 100644
--- a/config/metrics/schema.json
+++ b/config/metrics/schema.json
@@ -43,7 +43,7 @@
     "introduced_by_url": {
       "type": ["string", "null"]
     },
-    "extra": {
+    "options": {
       "type": "object"
     },
     "time_frame": {
@@ -56,7 +56,7 @@
     },
     "instrumentation_class": {
       "type": "string",
-      "pattern": "^(([A-Z][a-z]+)+::)*(([A-Z][a-z]+)+)$"
+      "pattern": "^(([A-Z][a-z]+)+::)*(([A-Z]+[a-z]+)+)$"
     },
     "distribution": {
       "type": "array",
diff --git a/doc/api/graphql/reference/index.md b/doc/api/graphql/reference/index.md
index b86c4ac9352..d238db2e4bd 100644
--- a/doc/api/graphql/reference/index.md
+++ b/doc/api/graphql/reference/index.md
@@ -14602,10 +14602,10 @@ Type of a snippet blob input action.
 
 | Value | Description |
 | ----- | ----------- |
-| <a id="snippetblobactionenumcreate"></a>`create` |  |
-| <a id="snippetblobactionenumdelete"></a>`delete` |  |
-| <a id="snippetblobactionenummove"></a>`move` |  |
-| <a id="snippetblobactionenumupdate"></a>`update` |  |
+| <a id="snippetblobactionenumcreate"></a>`create` | Create a snippet blob. |
+| <a id="snippetblobactionenumdelete"></a>`delete` | Delete a snippet blob. |
+| <a id="snippetblobactionenummove"></a>`move` | Move a snippet blob. |
+| <a id="snippetblobactionenumupdate"></a>`update` | Update a snippet blob. |
 
 ### `Sort`
 
diff --git a/doc/development/pipelines.md b/doc/development/pipelines.md
index 24f35bdab57..c6b79aee973 100644
--- a/doc/development/pipelines.md
+++ b/doc/development/pipelines.md
@@ -758,7 +758,6 @@ and included in `rules` definitions via [YAML anchors](../ci/yaml/README.md#anch
 | `if:` conditions | Description | Notes |
 |------------------|-------------|-------|
 | `if-not-canonical-namespace`                                 | Matches if the project isn't in the canonical (`gitlab-org/`) or security (`gitlab-org/security`) namespace. | Use to create a job for forks (by using `when: on_success|manual`), or **not** create a job for forks (by using `when: never`). |
-| `if-not-ee`                                                  | Matches if the project isn't EE (i.e. project name isn't `gitlab` or `gitlab-ee`). | Use to create a job only in the FOSS project (by using `when: on_success|manual`), or **not** create a job if the project is EE (by using `when: never`). |
 | `if-not-foss`                                                | Matches if the project isn't FOSS (i.e. project name isn't `gitlab-foss`, `gitlab-ce`, or `gitlabhq`). | Use to create a job only in the EE project (by using `when: on_success|manual`), or **not** create a job if the project is FOSS (by using `when: never`). |
 | `if-default-refs`                                            | Matches if the pipeline is for `master`, `main`, `/^[\d-]+-stable(-ee)?$/` (stable branches), `/^\d+-\d+-auto-deploy-\d+$/` (auto-deploy branches), `/^security\//` (security branches), merge requests, and tags. | Note that jobs aren't created for branches with this default configuration. |
 | `if-master-refs`                                             | Matches if the current branch is `master` or `main`. | |
@@ -788,6 +787,16 @@ and included in `rules` definitions via [YAML anchors](../ci/yaml/README.md#anch
 
 <!-- vale gitlab.Substitutions = YES -->
 
+#### `exists:` conditions
+
+<!-- vale gitlab.Substitutions = NO -->
+
+| `exists:` conditions | Description | Notes |
+|----------------------|-------------|-------|
+| `exists-ee`          | Matches if the project is EE (i.e. project contains `ee/` directory). | Use to create a job only in the EE project. |
+
+<!-- vale gitlab.Substitutions = YES -->
+
 #### `changes:` patterns
 
 | `changes:` patterns          | Description                                                              |
diff --git a/doc/development/usage_ping/dictionary.md b/doc/development/usage_ping/dictionary.md
index 2f0b46c4c4d..250945ac47f 100644
--- a/doc/development/usage_ping/dictionary.md
+++ b/doc/development/usage_ping/dictionary.md
@@ -1020,39 +1020,39 @@ Tiers: `free`, `premium`, `ultimate`
 
 ### `counts.design_management_designs_create`
 
-Missing description
+Number of designs that were created
 
 [YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_all/20210216180740_design_management_designs_create.yml)
 
-Group: `group::knowledge`
+Group: `group::product planning`
 
 Status: `data_available`
 
-Tiers: `free`
+Tiers: `free`, `premium`, `ultimate`
 
 ### `counts.design_management_designs_delete`
 
-Missing description
+Number of designs that were deleted
 
 [YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_all/20210216180743_design_management_designs_delete.yml)
 
-Group: `group::knowledge`
+Group: `group::product planning`
 
 Status: `data_available`
 
-Tiers: `free`
+Tiers: `free`, `premium`, `ultimate`
 
 ### `counts.design_management_designs_update`
 
-Missing description
+Number of updates to designs
 
 [YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_all/20210216180741_design_management_designs_update.yml)
 
-Group: `group::knowledge`
+Group: `group::product planning`
 
 Status: `data_available`
 
-Tiers: `free`
+Tiers: `free`, `premium`, `ultimate`
 
 ### `counts.environments`
 
@@ -2182,6 +2182,18 @@ Status: `implemented`
 
 Tiers: `free`, `premium`, `ultimate`
 
+### `counts.in_product_marketing_email_experience_0_sent`
+
+Total sent emails of the experience track's first email
+
+[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_all/20210518081225_in_product_marketing_email_experience_0_sent.yml)
+
+Group: `group::activation`
+
+Status: `implemented`
+
+Tiers: `free`, `premium`, `ultimate`
+
 ### `counts.in_product_marketing_email_team_0_cta_clicked`
 
 Total clicks on the team track's first email
@@ -2398,18 +2410,6 @@ Status: `implemented`
 
 Tiers: `free`, `premium`, `ultimate`
 
-### `counts.in_product_marketing_email_experience_0_sent`
-
-Total sent emails of the experience track's first email
-
-[YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_all/20210518081225_in_product_marketing_email_experience_0_sent.yml)
-
-Group: `group::activation`
-
-Status: `implemented`
-
-Tiers: `free`, `premium`, `ultimate`
-
 ### `counts.in_review_folder`
 
 Missing description
@@ -11994,7 +11994,7 @@ Count of unique users to receive a notification while on-call
 
 Group: `group::monitor`
 
-Status: `implemented`
+Status: `data_available`
 
 Tiers: `premium`, `ultimate`
 
@@ -12006,7 +12006,7 @@ Count of unique users to receive a notification while on-call
 
 Group: `group::monitor`
 
-Status: `implemented`
+Status: `data_available`
 
 Tiers: `premium`, `ultimate`
 
@@ -17680,15 +17680,15 @@ Tiers: `free`, `premium`, `ultimate`
 
 ### `usage_activity_by_stage_monthly.create.action_monthly_active_users_design_management`
 
-Missing description
+Monthly active users for design management
 
 [YAML definition](https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/metrics/counts_28d/20210216180745_action_monthly_active_users_design_management.yml)
 
-Group: `group::knowledge`
+Group: `group::product planning`
 
 Status: `data_available`
 
-Tiers: `free`
+Tiers: `free`, `premium`, `ultimate`
 
 ### `usage_activity_by_stage_monthly.create.action_monthly_active_users_git_write`
 
diff --git a/doc/development/usage_ping/metrics_dictionary.md b/doc/development/usage_ping/metrics_dictionary.md
index 40beee3c408..9fd09714e65 100644
--- a/doc/development/usage_ping/metrics_dictionary.md
+++ b/doc/development/usage_ping/metrics_dictionary.md
@@ -43,7 +43,7 @@ Each metric is defined in a separate YAML file consisting of a number of fields:
 | `milestone`         | no       | The milestone when the metric is introduced. |
 | `milestone_removed` | no       | The milestone when the metric is removed. |
 | `introduced_by_url` | no       | The URL to the Merge Request that introduced the metric. |
-| `extra`             | no       | `object`: extra information needed to calculate the metric value. |
+| `options`           | no       | `object`: options information needed to calculate the metric value. |
 | `skip_validation`   | no       | This should **not** be set. [Used for imported metrics until we review, update and make them valid](https://gitlab.com/groups/gitlab-org/-/epics/5425). |
 
 ### Metric statuses
diff --git a/doc/development/usage_ping/metrics_instrumentation.md b/doc/development/usage_ping/metrics_instrumentation.md
index 2cb24fab6cc..e9f6be29454 100644
--- a/doc/development/usage_ping/metrics_instrumentation.md
+++ b/doc/development/usage_ping/metrics_instrumentation.md
@@ -26,7 +26,7 @@ A metric definition has the [`instrumentation_class`](metrics_dictionary.md) fie
 
 The defined instrumentation class should have one of the existing metric classes: `DatabaseMetric`, `RedisHLLMetric`, or `GenericMetric`.
 
-Using the instrumentation classes ensures that metrics can fail safe individually, without breaking the entire 
+Using the instrumentation classes ensures that metrics can fail safe individually, without breaking the entire
  process of Usage Ping generation.
 
 We have built a domain-specific language (DSL) to define the metrics instrumentation.
@@ -53,20 +53,17 @@ end
 
 ## Redis HyperLogLog metrics
 
-[Example of a merge request that adds a `RedisHLL` metric](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/60089/diffs).
+[Example of a merge request that adds a `RedisHLL` metric](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61685).
 
-```ruby
-module Gitlab
-  module Usage
-    module Metrics
-      module Instrumentations
-        class CountUsersUsingApproveQuickActionMetric < RedisHLLMetric
-          event_names :i_quickactions_approve
-        end
-      end
-    end
-  end
-end
+Count unique values for `i_quickactions_approve` event.
+
+```yaml
+time_frame: 28d
+data_source: redis_hll
+instrumentation_class: 'Gitlab::Usage::Metrics::Instrumentations::RedisHLLMetric'
+options:
+  events:
+    - i_quickactions_approve
 ```
 
 ## Generic metrics
diff --git a/lib/api/helpers/services_helpers.rb b/lib/api/helpers/services_helpers.rb
index d123db8e3df..2998af34960 100644
--- a/lib/api/helpers/services_helpers.rb
+++ b/lib/api/helpers/services_helpers.rb
@@ -777,16 +777,18 @@ module API
           ::Integrations::Asana,
           ::Integrations::Assembla,
           ::Integrations::Bamboo,
+          ::Integrations::Bugzilla,
           ::Integrations::Campfire,
           ::Integrations::Confluence,
+          ::Integrations::CustomIssueTracker,
           ::Integrations::Datadog,
           ::Integrations::EmailsOnPush,
-          ::BugzillaService,
+          ::Integrations::Ewm,
+          ::Integrations::Redmine,
+          ::Integrations::Youtrack,
           ::BuildkiteService,
-          ::CustomIssueTrackerService,
           ::DiscordService,
           ::DroneCiService,
-          ::EwmService,
           ::ExternalWikiService,
           ::FlowdockService,
           ::HangoutsChatService,
@@ -800,8 +802,6 @@ module API
           ::PivotaltrackerService,
           ::PrometheusService,
           ::PushoverService,
-          ::RedmineService,
-          ::YoutrackService,
           ::SlackService,
           ::MattermostService,
           ::MicrosoftTeamsService,
diff --git a/lib/gitlab/exclusive_lease_helpers.rb b/lib/gitlab/exclusive_lease_helpers.rb
index da5b0afad38..7cf0232fbf2 100644
--- a/lib/gitlab/exclusive_lease_helpers.rb
+++ b/lib/gitlab/exclusive_lease_helpers.rb
@@ -25,7 +25,7 @@ module Gitlab
     #                                a proc that computes the sleep time given the number of preceding attempts
     #                               (from 1 to retries - 1)
     #
-    # Note: It's basically discouraged to use this method in a unicorn thread,
+    # Note: It's basically discouraged to use this method in a webserver thread,
     #       because this ties up all thread related resources until all `retries` are consumed.
     #       This could potentially eat up all connection pools.
     def in_lock(key, ttl: 1.minute, retries: 10, sleep_sec: 0.01.seconds)
diff --git a/lib/gitlab/integrations/sti_type.rb b/lib/gitlab/integrations/sti_type.rb
index e6ea98e6d66..0bc4cc48c05 100644
--- a/lib/gitlab/integrations/sti_type.rb
+++ b/lib/gitlab/integrations/sti_type.rb
@@ -4,7 +4,8 @@ module Gitlab
   module Integrations
     class StiType < ActiveRecord::Type::String
       NAMESPACED_INTEGRATIONS = Set.new(%w(
-        Asana Assembla Bamboo Campfire Confluence Datadog EmailsOnPush
+        Asana Assembla Bamboo Bugzilla Campfire Confluence CustomIssueTracker Datadog
+        EmailsOnPush Ewm IssueTracker Redmine Youtrack
       )).freeze
 
       def cast(value)
diff --git a/lib/gitlab/usage/metrics/instrumentations/base_metric.rb b/lib/gitlab/usage/metrics/instrumentations/base_metric.rb
index 29b44f2bd0a..88e520abce8 100644
--- a/lib/gitlab/usage/metrics/instrumentations/base_metric.rb
+++ b/lib/gitlab/usage/metrics/instrumentations/base_metric.rb
@@ -8,9 +8,11 @@ module Gitlab
           include Gitlab::Utils::UsageData
 
           attr_reader :time_frame
+          attr_reader :options
 
-          def initialize(time_frame:)
+          def initialize(time_frame:, options: {})
             @time_frame = time_frame
+            @options = options
           end
         end
       end
diff --git a/lib/gitlab/usage/metrics/instrumentations/count_users_using_approve_quick_action_metric.rb b/lib/gitlab/usage/metrics/instrumentations/count_users_using_approve_quick_action_metric.rb
deleted file mode 100644
index 9c92f2e9595..00000000000
--- a/lib/gitlab/usage/metrics/instrumentations/count_users_using_approve_quick_action_metric.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-# frozen_string_literal: true
-
-module Gitlab
-  module Usage
-    module Metrics
-      module Instrumentations
-        class CountUsersUsingApproveQuickActionMetric < RedisHLLMetric
-          event_names :i_quickactions_approve
-        end
-      end
-    end
-  end
-end
diff --git a/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric.rb b/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric.rb
index 140d56f0d42..e6d892f217b 100644
--- a/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric.rb
+++ b/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric.rb
@@ -7,20 +7,24 @@ module Gitlab
         class RedisHLLMetric < BaseMetric
           # Usage example
           #
-          # class CountUsersVisitingAnalyticsValuestreamMetric < RedisHLLMetric
-          #   event_names :g_analytics_valuestream
+          # In metric YAML defintion
+          # instrumentation_class: RedisHLLMetric
+          #   events:
+          #     - g_analytics_valuestream
           # end
-          class << self
-            def event_names(events = nil)
-              @metric_events = events
-            end
+          def initialize(time_frame:, options: {})
+            super
 
-            attr_reader :metric_events
+            raise ArgumentError, "options events are required" unless metric_events.present?
+          end
+
+          def metric_events
+            options[:events]
           end
 
           def value
             redis_usage_data do
-              event_params = time_constraints.merge(event_names: self.class.metric_events)
+              event_params = time_constraints.merge(event_names: metric_events)
 
               Gitlab::UsageDataCounters::HLLRedisCounter.unique_events(**event_params)
             end
@@ -35,7 +39,7 @@ module Gitlab
             when '7d'
               { start_date: 7.days.ago.to_date, end_date: Date.current }
             else
-              raise "Unknown time frame: #{time_frame} for TimeConstraint"
+              raise "Unknown time frame: #{time_frame} for RedisHLLMetric"
             end
           end
         end
diff --git a/lib/gitlab/usage_data_metrics.rb b/lib/gitlab/usage_data_metrics.rb
index e181da01229..dde5dde19e0 100644
--- a/lib/gitlab/usage_data_metrics.rb
+++ b/lib/gitlab/usage_data_metrics.rb
@@ -7,9 +7,12 @@ module Gitlab
       def uncached_data
         ::Gitlab::Usage::MetricDefinition.all.map do |definition|
           instrumentation_class = definition.attributes[:instrumentation_class]
+          options = definition.attributes[:options]
 
           if instrumentation_class.present?
-            metric_value = "Gitlab::Usage::Metrics::Instrumentations::#{instrumentation_class}".constantize.new(time_frame: definition.attributes[:time_frame]).value
+            metric_value = "Gitlab::Usage::Metrics::Instrumentations::#{instrumentation_class}".constantize.new(
+              time_frame: definition.attributes[:time_frame],
+              options: options).value
 
             metric_payload(definition.key_path, metric_value)
           else
diff --git a/qa/qa/flow/user.rb b/qa/qa/flow/user.rb
index acc77cb9830..c0bd475adb7 100644
--- a/qa/qa/flow/user.rb
+++ b/qa/qa/flow/user.rb
@@ -9,13 +9,13 @@ module QA
         Capybara.current_session
       end
 
-      def confirm_user(username)
+      def confirm_user(user)
         Flow::Login.while_signed_in_as_admin do
           Page::Main::Menu.perform(&:go_to_admin_area)
           Page::Admin::Menu.perform(&:go_to_users_overview)
           Page::Admin::Overview::Users::Index.perform do |index|
-            index.search_user(username)
-            index.click_user(username)
+            index.search_user(user.email)
+            index.click_user(user.name)
           end
 
           Page::Admin::Overview::Users::Show.perform(&:confirm_user)
diff --git a/qa/qa/page/admin/overview/users/index.rb b/qa/qa/page/admin/overview/users/index.rb
index f8c79b4f72c..8a2c2303ff7 100644
--- a/qa/qa/page/admin/overview/users/index.rb
+++ b/qa/qa/page/admin/overview/users/index.rb
@@ -11,7 +11,7 @@ module QA
               element :pending_approval_tab
             end
 
-            view 'app/views/admin/users/_user.html.haml' do
+            view 'app/assets/javascripts/admin/users/components/users_table.vue' do
               element :user_row_content
             end
 
diff --git a/spec/controllers/admin/services_controller_spec.rb b/spec/controllers/admin/services_controller_spec.rb
index d5ec9907b48..995282ca4bb 100644
--- a/spec/controllers/admin/services_controller_spec.rb
+++ b/spec/controllers/admin/services_controller_spec.rb
@@ -44,7 +44,7 @@ RSpec.describe Admin::ServicesController do
   describe "#update" do
     let(:project) { create(:project) }
     let!(:service_template) do
-      RedmineService.create!(
+      Integrations::Redmine.create!(
         project: nil,
         active: false,
         template: true,
diff --git a/spec/factories/integrations.rb b/spec/factories/integrations.rb
index 6bd6deb262a..8c3fc31b2ef 100644
--- a/spec/factories/integrations.rb
+++ b/spec/factories/integrations.rb
@@ -6,7 +6,7 @@ FactoryBot.define do
     type { 'Integration' }
   end
 
-  factory :custom_issue_tracker_service, class: 'CustomIssueTrackerService' do
+  factory :custom_issue_tracker_service, class: 'Integrations::CustomIssueTracker' do
     project
     active { true }
     issue_tracker
@@ -85,25 +85,25 @@ FactoryBot.define do
     confluence_url { 'https://example.atlassian.net/wiki' }
   end
 
-  factory :bugzilla_service do
+  factory :bugzilla_service, class: 'Integrations::Bugzilla' do
     project
     active { true }
     issue_tracker
   end
 
-  factory :redmine_service do
+  factory :redmine_service, class: 'Integrations::Redmine' do
     project
     active { true }
     issue_tracker
   end
 
-  factory :youtrack_service do
+  factory :youtrack_service, class: 'Integrations::Youtrack' do
     project
     active { true }
     issue_tracker
   end
 
-  factory :ewm_service do
+  factory :ewm_service, class: 'Integrations::Ewm' do
     project
     active { true }
     issue_tracker
@@ -134,7 +134,7 @@ FactoryBot.define do
     external_wiki_url { 'http://external-wiki-url.com' }
   end
 
-  factory :open_project_service do
+  factory :open_project_service, class: 'Integrations::OpenProject' do
     project
     active { true }
 
@@ -182,13 +182,13 @@ FactoryBot.define do
     create_data { false }
 
     after(:build) do
-      IssueTrackerService.skip_callback(:validation, :before, :handle_properties)
+      Integrations::IssueTracker.skip_callback(:validation, :before, :handle_properties)
     end
 
     to_create { |instance| instance.save!(validate: false) }
 
     after(:create) do
-      IssueTrackerService.set_callback(:validation, :before, :handle_properties)
+      Integrations::IssueTracker.set_callback(:validation, :before, :handle_properties)
     end
   end
 
diff --git a/spec/lib/gitlab/gitaly_client_spec.rb b/spec/lib/gitlab/gitaly_client_spec.rb
index a8d42f4bccf..16f75691288 100644
--- a/spec/lib/gitlab/gitaly_client_spec.rb
+++ b/spec/lib/gitlab/gitaly_client_spec.rb
@@ -33,14 +33,6 @@ RSpec.describe Gitlab::GitalyClient do
       it { expect(subject.long_timeout).to eq(6.hours) }
     end
 
-    context 'running in Unicorn' do
-      before do
-        allow(Gitlab::Runtime).to receive(:unicorn?).and_return(true)
-      end
-
-      it { expect(subject.long_timeout).to eq(55) }
-    end
-
     context 'running in Puma' do
       before do
         allow(Gitlab::Runtime).to receive(:puma?).and_return(true)
diff --git a/spec/lib/gitlab/runtime_spec.rb b/spec/lib/gitlab/runtime_spec.rb
index 0fcb7db7d5f..f51c5dd3d20 100644
--- a/spec/lib/gitlab/runtime_spec.rb
+++ b/spec/lib/gitlab/runtime_spec.rb
@@ -99,25 +99,6 @@ RSpec.describe Gitlab::Runtime do
     end
   end
 
-  context "unicorn" do
-    before do
-      stub_const('::Unicorn', Module.new)
-      stub_const('::Unicorn::HttpServer', Class.new)
-      stub_env('ACTION_CABLE_IN_APP', 'false')
-    end
-
-    it_behaves_like "valid runtime", :unicorn, 1
-
-    context "when ActionCable in-app mode is enabled" do
-      before do
-        stub_env('ACTION_CABLE_IN_APP', 'true')
-        stub_env('ACTION_CABLE_WORKER_POOL_SIZE', '3')
-      end
-
-      it_behaves_like "valid runtime", :unicorn, 4
-    end
-  end
-
   context "sidekiq" do
     let(:sidekiq_type) { double('::Sidekiq') }
 
diff --git a/spec/lib/gitlab/usage/metrics/instrumentations/count_users_using_approve_quick_action_metric_spec.rb b/spec/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric_spec.rb
similarity index 62%
rename from spec/lib/gitlab/usage/metrics/instrumentations/count_users_using_approve_quick_action_metric_spec.rb
rename to spec/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric_spec.rb
index 7adba825a13..53452c28c47 100644
--- a/spec/lib/gitlab/usage/metrics/instrumentations/count_users_using_approve_quick_action_metric_spec.rb
+++ b/spec/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe Gitlab::Usage::Metrics::Instrumentations::CountUsersUsingApproveQuickActionMetric, :clean_gitlab_redis_shared_state do
+RSpec.describe Gitlab::Usage::Metrics::Instrumentations::RedisHLLMetric, :clean_gitlab_redis_shared_state do
   before do
     Gitlab::UsageDataCounters::HLLRedisCounter.track_event(:i_quickactions_approve, values: 1, time: 1.week.ago)
     Gitlab::UsageDataCounters::HLLRedisCounter.track_event(:i_quickactions_approve, values: 1, time: 2.weeks.ago)
@@ -10,6 +10,10 @@ RSpec.describe Gitlab::Usage::Metrics::Instrumentations::CountUsersUsingApproveQ
     Gitlab::UsageDataCounters::HLLRedisCounter.track_event(:i_quickactions_approve, values: 2, time: 2.months.ago)
   end
 
-  it_behaves_like 'a correct instrumented metric value', { time_frame: '28d', data_source: 'redis_hll' }, 2
-  it_behaves_like 'a correct instrumented metric value', { time_frame: '7d', data_source: 'redis_hll' }, 1
+  it_behaves_like 'a correct instrumented metric value', { time_frame: '28d', options: { events: ['i_quickactions_approve'] } }, 2
+  it_behaves_like 'a correct instrumented metric value', { time_frame: '7d', options: { events: ['i_quickactions_approve'] } }, 1
+
+  it 'raise exception if vents options is not present' do
+    expect { described_class.new(time_frame: '28d') }.to raise_error(ArgumentError)
+  end
 end
diff --git a/spec/lib/gitlab/usage_data/topology_spec.rb b/spec/lib/gitlab/usage_data/topology_spec.rb
index b8462e0290c..737580e3493 100644
--- a/spec/lib/gitlab/usage_data/topology_spec.rb
+++ b/spec/lib/gitlab/usage_data/topology_spec.rb
@@ -95,7 +95,7 @@ RSpec.describe Gitlab::UsageData::Topology do
                   },
                   {
                     name: 'web',
-                    server: 'unicorn'
+                    server: 'puma'
                   }
                 ]
               }
@@ -724,7 +724,7 @@ RSpec.describe Gitlab::UsageData::Topology do
         },
         # instance 2
         {
-          'metric' => { 'instance' => 'instance2:8080', 'job' => 'gitlab-rails', 'server' => 'unicorn' },
+          'metric' => { 'instance' => 'instance2:8080', 'job' => 'gitlab-rails', 'server' => 'puma' },
           'value' => [1000, '1']
         }
       ])
diff --git a/spec/models/integration_spec.rb b/spec/models/integration_spec.rb
index 77b3778122a..cb3fb7a011c 100644
--- a/spec/models/integration_spec.rb
+++ b/spec/models/integration_spec.rb
@@ -159,7 +159,7 @@ RSpec.describe Integration do
       context 'when instance-level service' do
         Integration.available_services_types.each do |service_type|
           let(:service) do
-            service_type.constantize.new(instance: true)
+            described_class.send(:service_type_to_model, service_type).new(instance: true)
           end
 
           it { is_expected.to be_falsey }
@@ -169,7 +169,7 @@ RSpec.describe Integration do
       context 'when group-level service' do
         Integration.available_services_types.each do |service_type|
           let(:service) do
-            service_type.constantize.new(group_id: group.id)
+            described_class.send(:service_type_to_model, service_type).new(group_id: group.id)
           end
 
           it { is_expected.to be_falsey }
@@ -672,7 +672,7 @@ RSpec.describe Integration do
       expect(described_class.service_name_to_model('asana')).to eq(Integrations::Asana)
       # TODO We can remove this test when all models have been namespaced:
       # https://gitlab.com/gitlab-org/gitlab/-/merge_requests/60968#note_570994955
-      expect(described_class.service_name_to_model('youtrack')).to eq(YoutrackService)
+      expect(described_class.service_name_to_model('webex_teams')).to eq(WebexTeamsService)
     end
 
     it 'raises an error if service name is invalid' do
@@ -802,7 +802,7 @@ RSpec.describe Integration do
 
   describe 'initialize service with no properties' do
     let(:service) do
-      BugzillaService.create!(
+      Integrations::Bugzilla.create!(
         project: project,
         project_url: 'http://gitlab.example.com'
       )
diff --git a/spec/models/project_services/bugzilla_service_spec.rb b/spec/models/integrations/bugzilla_spec.rb
similarity index 96%
rename from spec/models/project_services/bugzilla_service_spec.rb
rename to spec/models/integrations/bugzilla_spec.rb
index 560c7c3ee83..e75fa8dd4d4 100644
--- a/spec/models/project_services/bugzilla_service_spec.rb
+++ b/spec/models/integrations/bugzilla_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe BugzillaService do
+RSpec.describe Integrations::Bugzilla do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }
diff --git a/spec/models/project_services/custom_issue_tracker_service_spec.rb b/spec/models/integrations/custom_issue_tracker_spec.rb
similarity index 95%
rename from spec/models/project_services/custom_issue_tracker_service_spec.rb
rename to spec/models/integrations/custom_issue_tracker_spec.rb
index 881ae60a680..25f2648e738 100644
--- a/spec/models/project_services/custom_issue_tracker_service_spec.rb
+++ b/spec/models/integrations/custom_issue_tracker_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe CustomIssueTrackerService do
+RSpec.describe Integrations::CustomIssueTracker do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }
diff --git a/spec/models/project_services/ewm_service_spec.rb b/spec/models/integrations/ewm_spec.rb
similarity index 98%
rename from spec/models/project_services/ewm_service_spec.rb
rename to spec/models/integrations/ewm_spec.rb
index 311c456569e..38897adb447 100644
--- a/spec/models/project_services/ewm_service_spec.rb
+++ b/spec/models/integrations/ewm_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe EwmService do
+RSpec.describe Integrations::Ewm do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }
diff --git a/spec/models/project_services/issue_tracker_service_spec.rb b/spec/models/integrations/issue_tracker_spec.rb
similarity index 82%
rename from spec/models/project_services/issue_tracker_service_spec.rb
rename to spec/models/integrations/issue_tracker_spec.rb
index 5b12c7330b8..f030d04baa5 100644
--- a/spec/models/project_services/issue_tracker_service_spec.rb
+++ b/spec/models/integrations/issue_tracker_spec.rb
@@ -2,12 +2,12 @@
 
 require 'spec_helper'
 
-RSpec.describe IssueTrackerService do
+RSpec.describe Integrations::IssueTracker do
   describe 'Validations' do
     let(:project) { create :project }
 
     describe 'only one issue tracker per project' do
-      let(:service) { RedmineService.new(project: project, active: true, issue_tracker_data: build(:issue_tracker_data)) }
+      let(:service) { Integrations::Redmine.new(project: project, active: true, issue_tracker_data: build(:issue_tracker_data)) }
 
       before do
         create(:custom_issue_tracker_service, project: project)
diff --git a/spec/models/project_services/open_project_service_spec.rb b/spec/models/integrations/open_project_spec.rb
similarity index 95%
rename from spec/models/project_services/open_project_service_spec.rb
rename to spec/models/integrations/open_project_spec.rb
index 1abaab0ceff..e5b976dc91d 100644
--- a/spec/models/project_services/open_project_service_spec.rb
+++ b/spec/models/integrations/open_project_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe OpenProjectService do
+RSpec.describe Integrations::OpenProject do
   describe 'Validations' do
     context 'when service is active' do
       before do
diff --git a/spec/models/project_services/redmine_service_spec.rb b/spec/models/integrations/redmine_spec.rb
similarity index 97%
rename from spec/models/project_services/redmine_service_spec.rb
rename to spec/models/integrations/redmine_spec.rb
index b9be3940d34..083585d4fed 100644
--- a/spec/models/project_services/redmine_service_spec.rb
+++ b/spec/models/integrations/redmine_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe RedmineService do
+RSpec.describe Integrations::Redmine do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }
diff --git a/spec/models/project_services/youtrack_service_spec.rb b/spec/models/integrations/youtrack_spec.rb
similarity index 96%
rename from spec/models/project_services/youtrack_service_spec.rb
rename to spec/models/integrations/youtrack_spec.rb
index 4339b44e1de..314204f6fb4 100644
--- a/spec/models/project_services/youtrack_service_spec.rb
+++ b/spec/models/integrations/youtrack_spec.rb
@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe YoutrackService do
+RSpec.describe Integrations::Youtrack do
   describe 'Associations' do
     it { is_expected.to belong_to :project }
     it { is_expected.to have_one :service_hook }
diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index 81cbcc8ddbc..e98821a04b6 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -1086,7 +1086,7 @@ RSpec.describe Project, factory_default: :keep do
       project = create(:redmine_project)
 
       expect(project).to receive(:integrations).once.and_call_original
-      2.times { expect(project.external_issue_tracker).to be_a_kind_of(RedmineService) }
+      2.times { expect(project.external_issue_tracker).to be_a_kind_of(Integrations::Redmine) }
     end
   end
 
diff --git a/spec/requests/api/terraform/state_spec.rb b/spec/requests/api/terraform/state_spec.rb
index 2cb3c8e9ab5..27cdd025048 100644
--- a/spec/requests/api/terraform/state_spec.rb
+++ b/spec/requests/api/terraform/state_spec.rb
@@ -156,15 +156,6 @@ RSpec.describe API::Terraform::State do
           expect(response).to have_gitlab_http_status(:ok)
           expect(Gitlab::Json.parse(response.body)).to be_empty
         end
-
-        context 'on Unicorn', :unicorn do
-          it 'updates the state' do
-            expect { request }.to change { Terraform::State.count }.by(0)
-
-            expect(response).to have_gitlab_http_status(:ok)
-            expect(Gitlab::Json.parse(response.body)).to be_empty
-          end
-        end
       end
 
       context 'without body' do
@@ -200,15 +191,6 @@ RSpec.describe API::Terraform::State do
           expect(response).to have_gitlab_http_status(:ok)
           expect(Gitlab::Json.parse(response.body)).to be_empty
         end
-
-        context 'on Unicorn', :unicorn do
-          it 'creates a new state' do
-            expect { request }.to change { Terraform::State.count }.by(1)
-
-            expect(response).to have_gitlab_http_status(:ok)
-            expect(Gitlab::Json.parse(response.body)).to be_empty
-          end
-        end
       end
 
       context 'without body' do
diff --git a/spec/support/gitlab/usage/metrics_instrumentation_shared_examples.rb b/spec/support/gitlab/usage/metrics_instrumentation_shared_examples.rb
index c9ff566e94c..f52b0ca85f0 100644
--- a/spec/support/gitlab/usage/metrics_instrumentation_shared_examples.rb
+++ b/spec/support/gitlab/usage/metrics_instrumentation_shared_examples.rb
@@ -1,13 +1,14 @@
 # frozen_string_literal: true
 
-RSpec.shared_examples 'a correct instrumented metric value' do |options, expected_value|
-  let(:time_frame) { options[:time_frame] }
+RSpec.shared_examples 'a correct instrumented metric value' do |params, expected_value|
+  let(:time_frame) { params[:time_frame] }
+  let(:options) { params[:options] }
 
   before do
     allow(ActiveRecord::Base.connection).to receive(:transaction_open?).and_return(false)
   end
 
   it 'has correct value' do
-    expect(described_class.new(time_frame: time_frame).value).to eq(expected_value)
+    expect(described_class.new(time_frame: time_frame, options: options).value).to eq(expected_value)
   end
 end
diff --git a/spec/support/shared_examples/requests/api/conan_packages_shared_examples.rb b/spec/support/shared_examples/requests/api/conan_packages_shared_examples.rb
index c938c6432fe..20606ae942d 100644
--- a/spec/support/shared_examples/requests/api/conan_packages_shared_examples.rb
+++ b/spec/support/shared_examples/requests/api/conan_packages_shared_examples.rb
@@ -294,16 +294,6 @@ RSpec.shared_examples 'rejects invalid upload_url params' do
   end
 end
 
-RSpec.shared_examples 'successful response when using Unicorn' do
-  context 'on Unicorn', :unicorn do
-    it 'returns successfully' do
-      subject
-
-      expect(response).to have_gitlab_http_status(:ok)
-    end
-  end
-end
-
 RSpec.shared_examples 'recipe snapshot endpoint' do
   subject { get api(url), headers: headers }
 
@@ -372,7 +362,6 @@ RSpec.shared_examples 'recipe upload_urls endpoint' do
 
   it_behaves_like 'rejects invalid recipe'
   it_behaves_like 'rejects invalid upload_url params'
-  it_behaves_like 'successful response when using Unicorn'
 
   it 'returns a set of upload urls for the files requested' do
     subject
@@ -434,7 +423,6 @@ RSpec.shared_examples 'package upload_urls endpoint' do
 
   it_behaves_like 'rejects invalid recipe'
   it_behaves_like 'rejects invalid upload_url params'
-  it_behaves_like 'successful response when using Unicorn'
 
   it 'returns a set of upload urls for the files requested' do
     expected_response = {
diff --git a/spec/support/unicorn.rb b/spec/support/unicorn.rb
deleted file mode 100644
index 0b01fc9e26c..00000000000
--- a/spec/support/unicorn.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-# frozen_string_literal: true
-
-REQUEST_CLASSES = [
-  ::Grape::Request,
-  ::Rack::Request
-].freeze
-
-def request_body_class
-  return ::Unicorn::TeeInput if defined?(::Unicorn)
-
-  Class.new(StringIO) do
-    def string
-      raise NotImplementedError, '#string is only valid under Puma which uses StringIO, use #read instead'
-    end
-  end
-end
-
-RSpec.configure do |config|
-  config.before(:each, :unicorn) do
-    REQUEST_CLASSES.each do |request_class|
-      allow_any_instance_of(request_class)
-        .to receive(:body).and_wrap_original do |m, *args|
-          request_body_class.new(m.call(*args).read)
-        end
-    end
-  end
-end
diff --git a/spec/views/projects/services/_form.haml_spec.rb b/spec/views/projects/services/_form.haml_spec.rb
index 4ca64eb3129..5c48b17848e 100644
--- a/spec/views/projects/services/_form.haml_spec.rb
+++ b/spec/views/projects/services/_form.haml_spec.rb
@@ -23,7 +23,7 @@ RSpec.describe 'projects/services/_form' do
     end
 
     it 'display merge_request_events and commit_events descriptions' do
-      allow(RedmineService).to receive(:supported_events).and_return(%w(commit merge_request))
+      allow(Integrations::Redmine).to receive(:supported_events).and_return(%w(commit merge_request))
 
       render
 
diff --git a/workhorse/doc/operations/configuration.md b/workhorse/doc/operations/configuration.md
index bc53df3acab..a78c2ac5459 100644
--- a/workhorse/doc/operations/configuration.md
+++ b/workhorse/doc/operations/configuration.md
@@ -11,7 +11,7 @@ All new configuration options that get added to Workhorse should go into the con
 
 Options:
   -apiCiLongPollingDuration duration
-      Long polling duration for job requesting for runners (default 50s - enabled) (default 50ns)
+      Long polling duration for job requesting for runners (default 50ns)
   -apiLimit uint
       Number of API requests allowed at single time
   -apiQueueDuration duration
diff --git a/workhorse/main.go b/workhorse/main.go
index 47ab63a875a..cafe07057d3 100644
--- a/workhorse/main.go
+++ b/workhorse/main.go
@@ -102,7 +102,7 @@ func buildConfig(arg0 string, args []string) (*bootConfig, *config.Config, error
 	fset.UintVar(&cfg.APILimit, "apiLimit", 0, "Number of API requests allowed at single time")
 	fset.UintVar(&cfg.APIQueueLimit, "apiQueueLimit", 0, "Number of API requests allowed to be queued")
 	fset.DurationVar(&cfg.APIQueueTimeout, "apiQueueDuration", queueing.DefaultTimeout, "Maximum queueing duration of requests")
-	fset.DurationVar(&cfg.APICILongPollingDuration, "apiCiLongPollingDuration", 50, "Long polling duration for job requesting for runners (default 50s - enabled)")
+	fset.DurationVar(&cfg.APICILongPollingDuration, "apiCiLongPollingDuration", 50, "Long polling duration for job requesting for runners")
 	fset.BoolVar(&cfg.PropagateCorrelationID, "propagateCorrelationID", false, "Reuse existing Correlation-ID from the incoming request header `X-Request-ID` if present")
 
 	if err := fset.Parse(args); err != nil {