Add latest changes from gitlab-org/gitlab@master

52 files changed, 602 insertions, 141 deletions

diff --git a/Gemfile b/Gemfile
index 031389dcc90..6dc00554096 100644
--- a/Gemfile
+++ b/Gemfile
@@ -87,7 +87,7 @@ gem 'grape-entity', '~> 0.7.1'
 gem 'rack-cors', '~> 1.0.6', require: 'rack/cors'
 
 # GraphQL API
-gem 'graphql', '~> 1.9.11'
+gem 'graphql', '~> 1.9.12'
 # NOTE: graphiql-rails v1.5+ doesn't work: https://gitlab.com/gitlab-org/gitlab/issues/31771
 # TODO: remove app/views/graphiql/rails/editors/show.html.erb when https://github.com/rmosolgo/graphiql-rails/pull/71 is released:
 # https://gitlab.com/gitlab-org/gitlab/issues/31747
diff --git a/Gemfile.lock b/Gemfile.lock
index 817648c606f..a3fb732021f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -455,7 +455,7 @@ GEM
     graphiql-rails (1.4.10)
       railties
       sprockets-rails
-    graphql (1.9.11)
+    graphql (1.9.12)
     graphql-docs (1.6.0)
       commonmarker (~> 0.16)
       escape_utils (~> 1.2)
@@ -1252,7 +1252,7 @@ DEPENDENCIES
   grape-path-helpers (~> 1.2)
   grape_logging (~> 1.7)
   graphiql-rails (~> 1.4.10)
-  graphql (~> 1.9.11)
+  graphql (~> 1.9.12)
   graphql-docs (~> 1.6.0)
   grpc (~> 1.24.0)
   gssapi
diff --git a/app/assets/javascripts/notifications_form.js b/app/assets/javascripts/notifications_form.js
index dcd226795a6..fa27994f598 100644
--- a/app/assets/javascripts/notifications_form.js
+++ b/app/assets/javascripts/notifications_form.js
@@ -26,7 +26,7 @@ export default class NotificationsForm {
       .addClass('is-loading')
       .find('.custom-notification-event-loading')
       .removeClass('fa-check')
-      .addClass('fa-spin fa-spinner')
+      .addClass('spinner align-middle')
       .removeClass('is-done');
   }
 
@@ -41,12 +41,12 @@ export default class NotificationsForm {
         if (data.saved) {
           $parent
             .find('.custom-notification-event-loading')
-            .toggleClass('fa-spin fa-spinner fa-check is-done');
+            .toggleClass('spinner fa-check is-done align-middle');
           setTimeout(() => {
             $parent
               .removeClass('is-loading')
               .find('.custom-notification-event-loading')
-              .toggleClass('fa-spin fa-spinner fa-check is-done');
+              .toggleClass('spinner fa-check is-done align-middle');
           }, 2000);
         }
       })
diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index b0502f7a26e..27a394e4ab8 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -818,7 +818,7 @@ module Ci
       depended_jobs = depends_on_builds
 
       # find all jobs that are needed
-      if Feature.enabled?(:ci_dag_support, project, default_enabled: true) && needs.exists?
+      if Feature.enabled?(:ci_dag_support, project, default_enabled: true) && scheduling_type_dag?
         depended_jobs = depended_jobs.where(name: needs.artifacts.select(:name))
       end
 
diff --git a/app/models/ci/processable.rb b/app/models/ci/processable.rb
index 95fb75688a9..6c080582cae 100644
--- a/app/models/ci/processable.rb
+++ b/app/models/ci/processable.rb
@@ -12,6 +12,18 @@ module Ci
 
     scope :preload_needs, -> { preload(:needs) }
 
+    scope :with_needs, -> (names = nil) do
+      needs = Ci::BuildNeed.scoped_build.select(1)
+      needs = needs.where(name: names) if names
+      where('EXISTS (?)', needs).preload(:needs)
+    end
+
+    scope :without_needs, -> (names = nil) do
+      needs = Ci::BuildNeed.scoped_build.select(1)
+      needs = needs.where(name: names) if names
+      where('NOT EXISTS (?)', needs)
+    end
+
     def self.select_with_aggregated_needs(project)
       return all unless Feature.enabled?(:ci_dag_support, project, default_enabled: true)
 
@@ -26,6 +38,18 @@ module Ci
       )
     end
 
+    # Old processables may have scheduling_type as nil,
+    # so we need to ensure the data exists before using it.
+    def self.populate_scheduling_type!
+      needs = Ci::BuildNeed.scoped_build.select(1)
+      where(scheduling_type: nil).update_all(
+        "scheduling_type = CASE WHEN (EXISTS (#{needs.to_sql}))
+         THEN #{scheduling_types[:dag]}
+         ELSE #{scheduling_types[:stage]}
+         END"
+      )
+    end
+
     validates :type, presence: true
     validates :scheduling_type, presence: true, on: :create, if: :validate_scheduling_type?
 
@@ -53,6 +77,11 @@ module Ci
       raise NotImplementedError
     end
 
+    # Overriding scheduling_type enum's method for nil `scheduling_type`s
+    def scheduling_type_dag?
+      super || find_legacy_scheduling_type == :dag
+    end
+
     # scheduling_type column of previous builds/bridges have not been populated,
     # so we calculate this value on runtime when we need it.
     def find_legacy_scheduling_type
diff --git a/app/models/commit_status.rb b/app/models/commit_status.rb
index 5a917588a33..35b727720ba 100644
--- a/app/models/commit_status.rb
+++ b/app/models/commit_status.rb
@@ -62,18 +62,6 @@ class CommitStatus < ApplicationRecord
     preload(project: :namespace)
   end
 
-  scope :with_needs, -> (names = nil) do
-    needs = Ci::BuildNeed.scoped_build.select(1)
-    needs = needs.where(name: names) if names
-    where('EXISTS (?)', needs).preload(:needs)
-  end
-
-  scope :without_needs, -> (names = nil) do
-    needs = Ci::BuildNeed.scoped_build.select(1)
-    needs = needs.where(name: names) if names
-    where('NOT EXISTS (?)', needs)
-  end
-
   scope :match_id_and_lock_version, -> (slice) do
     # it expects that items are an array of attributes to match
     # each hash needs to have `id` and `lock_version`
diff --git a/app/models/project_services/youtrack_service.rb b/app/models/project_services/youtrack_service.rb
index 0416eaa5be0..02d06eeb405 100644
--- a/app/models/project_services/youtrack_service.rb
+++ b/app/models/project_services/youtrack_service.rb
@@ -6,9 +6,9 @@ class YoutrackService < IssueTrackerService
   # {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+)/
+      /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)/
     else
-      /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+)|(#{Issue.reference_prefix}(?<issue>\d+))/
+      /(?<issue>\b[A-Za-z][A-Za-z0-9_]*-\d+\b)|(#{Issue.reference_prefix}(?<issue>\d+))/
     end
   end
 
diff --git a/app/services/ci/create_pipeline_service.rb b/app/services/ci/create_pipeline_service.rb
index 2daf3a51235..52977034b70 100644
--- a/app/services/ci/create_pipeline_service.rb
+++ b/app/services/ci/create_pipeline_service.rb
@@ -61,7 +61,7 @@ module Ci
 
           Ci::ProcessPipelineService
             .new(pipeline)
-            .execute
+            .execute(nil, initial_process: true)
         end
       end
 
diff --git a/app/services/ci/pipeline_processing/atomic_processing_service.rb b/app/services/ci/pipeline_processing/atomic_processing_service.rb
index 1ed295f5950..55846c3cb5c 100644
--- a/app/services/ci/pipeline_processing/atomic_processing_service.rb
+++ b/app/services/ci/pipeline_processing/atomic_processing_service.rb
@@ -93,9 +93,9 @@ module Ci
       end
 
       def processable_status(processable)
-        if needs_names = processable.aggregated_needs_names
+        if Feature.enabled?(:ci_dag_support, project, default_enabled: true) && processable.scheduling_type_dag?
           # Processable uses DAG, get status of all dependent needs
-          @collection.status_for_names(needs_names)
+          @collection.status_for_names(processable.aggregated_needs_names.to_a)
         else
           # Processable uses Stages, get status of prior stage
           @collection.status_for_prior_stage_position(processable.stage_idx.to_i)
diff --git a/app/services/ci/pipeline_processing/legacy_processing_service.rb b/app/services/ci/pipeline_processing/legacy_processing_service.rb
index 400dc9f0abb..278fba20283 100644
--- a/app/services/ci/pipeline_processing/legacy_processing_service.rb
+++ b/app/services/ci/pipeline_processing/legacy_processing_service.rb
@@ -11,12 +11,13 @@ module Ci
         @pipeline = pipeline
       end
 
-      def execute(trigger_build_ids = nil)
-        success = process_stages_without_needs
+      def execute(trigger_build_ids = nil, initial_process: false)
+        success = process_stages_for_stage_scheduling
 
         # we evaluate dependent needs,
         # only when the another job has finished
-        success = process_builds_with_needs(trigger_build_ids) || success
+        success = process_dag_builds_without_needs || success if initial_process
+        success = process_dag_builds_with_needs(trigger_build_ids) || success
 
         @pipeline.update_legacy_status
 
@@ -25,23 +26,31 @@ module Ci
 
       private
 
-      def process_stages_without_needs
-        stage_indexes_of_created_processables_without_needs.flat_map do |index|
-          process_stage_without_needs(index)
+      def process_stages_for_stage_scheduling
+        stage_indexes_of_created_stage_scheduled_processables.flat_map do |index|
+          process_stage_for_stage_scheduling(index)
         end.any?
       end
 
-      def process_stage_without_needs(index)
+      def process_stage_for_stage_scheduling(index)
         current_status = status_for_prior_stages(index)
 
         return unless HasStatus::COMPLETED_STATUSES.include?(current_status)
 
-        created_processables_in_stage_without_needs(index).find_each.select do |build|
+        created_stage_scheduled_processables_in_stage(index).find_each.select do |build|
           process_build(build, current_status)
         end.any?
       end
 
-      def process_builds_with_needs(trigger_build_ids)
+      def process_dag_builds_without_needs
+        return false unless Feature.enabled?(:ci_dag_support, project, default_enabled: true)
+
+        created_processables.scheduling_type_dag.without_needs.each do |build|
+          process_build(build, 'success')
+        end
+      end
+
+      def process_dag_builds_with_needs(trigger_build_ids)
         return false unless trigger_build_ids.present?
         return false unless Feature.enabled?(:ci_dag_support, project, default_enabled: true)
 
@@ -56,14 +65,15 @@ module Ci
 
         # Each found processable is guaranteed here to have completed status
         created_processables
+          .scheduling_type_dag
           .with_needs(trigger_build_names)
           .without_needs(incomplete_build_names)
           .find_each
-          .map(&method(:process_build_with_needs))
+          .map(&method(:process_dag_build_with_needs))
           .any?
       end
 
-      def process_build_with_needs(build)
+      def process_dag_build_with_needs(build)
         current_status = status_for_build_needs(build.needs.map(&:name))
 
         return unless HasStatus::COMPLETED_STATUSES.include?(current_status)
@@ -87,23 +97,23 @@ module Ci
       end
 
       # rubocop: disable CodeReuse/ActiveRecord
-      def stage_indexes_of_created_processables_without_needs
-        created_processables_without_needs.order(:stage_idx)
+      def stage_indexes_of_created_stage_scheduled_processables
+        created_stage_scheduled_processables.order(:stage_idx)
           .pluck(Arel.sql('DISTINCT stage_idx'))
       end
       # rubocop: enable CodeReuse/ActiveRecord
 
-      def created_processables_in_stage_without_needs(index)
-        created_processables_without_needs
+      def created_stage_scheduled_processables_in_stage(index)
+        created_stage_scheduled_processables
           .with_preloads
           .for_stage(index)
       end
 
-      def created_processables_without_needs
+      def created_stage_scheduled_processables
         if Feature.enabled?(:ci_dag_support, project, default_enabled: true)
-          pipeline.processables.created.without_needs
+          created_processables.scheduling_type_stage
         else
-          pipeline.processables.created
+          created_processables
         end
       end
 
diff --git a/app/services/ci/process_pipeline_service.rb b/app/services/ci/process_pipeline_service.rb
index 1ecef256233..d1efa19eb0d 100644
--- a/app/services/ci/process_pipeline_service.rb
+++ b/app/services/ci/process_pipeline_service.rb
@@ -8,8 +8,9 @@ module Ci
       @pipeline = pipeline
     end
 
-    def execute(trigger_build_ids = nil)
+    def execute(trigger_build_ids = nil, initial_process: false)
       update_retried
+      ensure_scheduling_type_for_processables
 
       if Feature.enabled?(:ci_atomic_processing, pipeline.project)
         Ci::PipelineProcessing::AtomicProcessingService
@@ -18,7 +19,7 @@ module Ci
       else
         Ci::PipelineProcessing::LegacyProcessingService
           .new(pipeline)
-          .execute(trigger_build_ids)
+          .execute(trigger_build_ids, initial_process: initial_process)
       end
     end
 
@@ -43,5 +44,17 @@ module Ci
         .update_all(retried: true) if latest_statuses.any?
     end
     # rubocop: enable CodeReuse/ActiveRecord
+
+    # Set scheduling type of processables if they were created before scheduling_type
+    # data was deployed (https://gitlab.com/gitlab-org/gitlab/-/merge_requests/22246).
+    # Given that this service runs multiple times during the pipeline
+    # life cycle we need to ensure we populate the data once.
+    # See more: https://gitlab.com/gitlab-org/gitlab/issues/205426
+    def ensure_scheduling_type_for_processables
+      lease = Gitlab::ExclusiveLease.new("set-scheduling-types:#{pipeline.id}", timeout: 1.hour.to_i)
+      return unless lease.try_obtain
+
+      pipeline.processables.populate_scheduling_type!
+    end
   end
 end
diff --git a/app/services/ci/retry_pipeline_service.rb b/app/services/ci/retry_pipeline_service.rb
index 7d01de9ee68..9bb236ac44c 100644
--- a/app/services/ci/retry_pipeline_service.rb
+++ b/app/services/ci/retry_pipeline_service.rb
@@ -36,7 +36,7 @@ module Ci
 
       Ci::ProcessPipelineService
         .new(pipeline)
-        .execute(completed_build_ids)
+        .execute(completed_build_ids, initial_process: true)
     end
   end
 end
diff --git a/app/views/notify/_failed_builds.html.haml b/app/views/notify/_failed_builds.html.haml
index 7c563bb016c..1711c34a842 100644
--- a/app/views/notify/_failed_builds.html.haml
+++ b/app/views/notify/_failed_builds.html.haml
@@ -27,6 +27,6 @@
             - if build.has_trace?
               %td{ colspan: "2", style: "font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif; padding: 0 0 16px;" }
                 %pre{ style: "font-family: Monaco,'Lucida Console','Courier New',Courier,monospace; background-color: #fafafa; border-radius: 4px; overflow: hidden; white-space: pre-wrap; word-break: break-all; font-size:13px; line-height: 1.4; padding: 16px 8px; color: #333333; margin: 0;" }
-                  = build.trace.html(last_lines: 10).html_safe
+                  = build.trace.html(last_lines: 30).html_safe
             - else
               %td{ colspan: "2" }
diff --git a/app/views/notify/autodevops_disabled_email.text.erb b/app/views/notify/autodevops_disabled_email.text.erb
index bf863952478..91092060e74 100644
--- a/app/views/notify/autodevops_disabled_email.text.erb
+++ b/app/views/notify/autodevops_disabled_email.text.erb
@@ -15,6 +15,6 @@ had <%= failed.size %> failed <%= 'build'.pluralize(failed.size) %>.
   Stage: <%= build.stage %>
   Name: <%= build.name %>
   <% if build.has_trace? -%>
-    Trace: <%= build.trace.raw(last_lines: 10) %>
+    Trace: <%= build.trace.raw(last_lines: 30) %>
   <% end -%>
 <% end -%>
diff --git a/app/views/notify/pipeline_failed_email.text.erb b/app/views/notify/pipeline_failed_email.text.erb
index 9cd479ef1e6..41b26842dbc 100644
--- a/app/views/notify/pipeline_failed_email.text.erb
+++ b/app/views/notify/pipeline_failed_email.text.erb
@@ -35,7 +35,7 @@ had <%= failed.size %> failed <%= 'build'.pluralize(failed.size) %>.
 Stage: <%= build.stage %>
 Name: <%= build.name %>
 <% if build.has_trace? -%>
-Trace: <%= build.trace.raw(last_lines: 10) %>
+Trace: <%= build.trace.raw(last_lines: 30) %>
 <% end -%>
 
 <% end -%>
diff --git a/app/views/shared/notifications/_custom_notifications.html.haml b/app/views/shared/notifications/_custom_notifications.html.haml
index be574155436..0e1e3beeb1c 100644
--- a/app/views/shared/notifications/_custom_notifications.html.haml
+++ b/app/views/shared/notifications/_custom_notifications.html.haml
@@ -30,4 +30,4 @@
                       %label.form-check-label{ for: field_id }
                         %strong
                           = notification_event_name(event)
-                          = icon("spinner spin", class: "custom-notification-event-loading")
+                          .fa.custom-notification-event-loading.spinner
diff --git a/changelogs/unreleased/13679-add-get-endpoint-to-ldap-group-link-api.yml b/changelogs/unreleased/13679-add-get-endpoint-to-ldap-group-link-api.yml
new file mode 100644
index 00000000000..f8e892e7e42
--- /dev/null
+++ b/changelogs/unreleased/13679-add-get-endpoint-to-ldap-group-link-api.yml
@@ -0,0 +1,5 @@
+---
+title: Add GET endpoint to LDAP group link API
+merge_request: 24216
+author:
+type: added
diff --git a/changelogs/unreleased/23068-ability-to-delete-identities-for-user.yml b/changelogs/unreleased/23068-ability-to-delete-identities-for-user.yml
new file mode 100644
index 00000000000..815b8d0cbfa
--- /dev/null
+++ b/changelogs/unreleased/23068-ability-to-delete-identities-for-user.yml
@@ -0,0 +1,5 @@
+---
+title: Add delete identity endpoint on the users API
+merge_request: 24122
+author:
+type: added
diff --git a/changelogs/unreleased/30631-allow-empty-needs-v4.yml b/changelogs/unreleased/30631-allow-empty-needs-v4.yml
new file mode 100644
index 00000000000..682603e7c04
--- /dev/null
+++ b/changelogs/unreleased/30631-allow-empty-needs-v4.yml
@@ -0,0 +1,5 @@
+---
+title: Implement allowing empty needs for jobs in DAG pipelines
+merge_request: 22246
+author:
+type: added
diff --git a/changelogs/unreleased/georgekoltsov-filter-group-attributes.yml b/changelogs/unreleased/georgekoltsov-filter-group-attributes.yml
new file mode 100644
index 00000000000..c5a6b6b98cf
--- /dev/null
+++ b/changelogs/unreleased/georgekoltsov-filter-group-attributes.yml
@@ -0,0 +1,5 @@
+---
+title: Extend the list of excluded_attributes for group on Group Import
+merge_request: 25031
+author:
+type: fixed
diff --git a/changelogs/unreleased/phillab-patch-29.yml b/changelogs/unreleased/phillab-patch-29.yml
new file mode 100644
index 00000000000..a6b1d8a643c
--- /dev/null
+++ b/changelogs/unreleased/phillab-patch-29.yml
@@ -0,0 +1,5 @@
+---
+title: Increase pipeline email notification from 10 to 30 lines
+merge_request: 21728
+author: Philipp Hasper
+type: changed
diff --git a/changelogs/unreleased/youtrack-issue-pattern.yml b/changelogs/unreleased/youtrack-issue-pattern.yml
new file mode 100644
index 00000000000..a6df681ecea
--- /dev/null
+++ b/changelogs/unreleased/youtrack-issue-pattern.yml
@@ -0,0 +1,5 @@
+---
+title: Avoid autolinking YouTrack issue numbers followed by letters
+merge_request: 24770
+author: Konrad Borowski
+type: fixed
diff --git a/danger/roulette/Dangerfile b/danger/roulette/Dangerfile
index f0e5c668cb8..d07d652e601 100644
--- a/danger/roulette/Dangerfile
+++ b/danger/roulette/Dangerfile
@@ -68,11 +68,9 @@ categories = changes.keys - [:unknown]
 # Ensure to spin for database reviewer/maintainer when ~database is applied (e.g. to review SQL queries)
 categories << :database if gitlab.mr_labels.include?('database') && !categories.include?(:database)
 
-# Single codebase MRs are reviewed using a slightly different process, so we
-# disable the review roulette for such MRs.
 # CSS Clean up MRs are reviewed using a slightly different process, so we
 # disable the review roulette for such MRs.
-if changes.any? && !gitlab.mr_labels.include?('single codebase') && !gitlab.mr_labels.include?('CSS cleanup')
+if changes.any? && !gitlab.mr_labels.include?('CSS cleanup')
   # Strip leading and trailing CE/EE markers
   canonical_branch_name =
     roulette.canonical_branch_name(gitlab.mr_json['source_branch'])
diff --git a/danger/single_codebase/Dangerfile b/danger/single_codebase/Dangerfile
deleted file mode 100644
index f371a42e9b1..00000000000
--- a/danger/single_codebase/Dangerfile
+++ /dev/null
@@ -1,63 +0,0 @@
-FRONTEND_MAINTAINERS = %w[filipa iamphill].freeze
-BACKEND_MAINTAINERS = %w[rspeicher rymai yorickpeterse godfat].freeze
-NO_REVIEWER = 'No reviewer available'.freeze
-
-def mention_single_codebase_approvers
-  canonical_branch_name =
-    roulette.canonical_branch_name(gitlab.mr_json['source_branch'])
-
-  random = roulette.new_random(canonical_branch_name)
-
-  frontend_maintainers = helper.new_teammates(FRONTEND_MAINTAINERS)
-  backend_maintainers = helper.new_teammates(BACKEND_MAINTAINERS)
-
-  rows = []
-
-  if gitlab.mr_labels.include?('frontend')
-    frontend_maintainer =
-      roulette.spin_for_person(frontend_maintainers, random: random)
-
-    rows << "| ~frontend | #{frontend_maintainer&.markdown_name || NO_REVIEWER}"
-  end
-
-  if gitlab.mr_labels.include?('backend')
-    backend_maintainer =
-      roulette.spin_for_person(backend_maintainers, random: random)
-
-    rows << "| ~backend | #{backend_maintainer&.markdown_name || NO_REVIEWER}"
-  end
-
-  if rows.empty?
-    backup_maintainer = backend_maintainers.sample
-
-    rows << "| ~frontend / ~backend | #{backup_maintainer.markdown_name}"
-  end
-
-  markdown(<<~MARKDOWN.strip)
-    ## Single codebase changes
-
-    This merge request contains changes related to the work of moving towards a
-    [single codebase](https://gitlab.com/groups/gitlab-org/-/epics/802) for
-    Community Edition and Enterprise Edition. These changes will need to be
-    reviewed and approved by the following engineers:
-
-    | Category | Reviewer
-    |----------|---------
-    #{rows.join("\n")}
-
-    To make sure this happens, please follow these steps:
-
-    1. Add all of the mentioned users to the list of merge request approvals.
-    2. Assign the merge request to the first person in the above list.
-
-    If you are a reviewer, please follow these steps:
-
-    1. Review the merge request. If it is good to go, approve it.
-    2. Once approved, assign to the next person in the above list. If you are
-       the last person in the list, merge the merge request.
-  MARKDOWN
-end
-
-if gitlab.mr_labels.include?('single codebase')
-  mention_single_codebase_approvers
-end
diff --git a/db/migrate/20200114140305_add_fields_to_application_settings_for_merge_requests_approvals.rb b/db/migrate/20200114140305_add_fields_to_application_settings_for_merge_requests_approvals.rb
new file mode 100644
index 00000000000..5e035f91f24
--- /dev/null
+++ b/db/migrate/20200114140305_add_fields_to_application_settings_for_merge_requests_approvals.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+class AddFieldsToApplicationSettingsForMergeRequestsApprovals < ActiveRecord::Migration[5.2]
+  DOWNTIME = false
+
+  def up
+    add_column(:application_settings,
+                :disable_overriding_approvers_per_merge_request,
+                :boolean,
+                default: false,
+                null: false)
+    add_column(:application_settings,
+                :prevent_merge_requests_author_approval,
+                :boolean,
+                default: false,
+                null: false)
+    add_column(:application_settings,
+                :prevent_merge_requests_committers_approval,
+                :boolean,
+                default: false,
+                null: false)
+  end
+
+  def down
+    remove_column(:application_settings, :disable_overriding_approvers_per_merge_request)
+    remove_column(:application_settings, :prevent_merge_requests_author_approval)
+    remove_column(:application_settings, :prevent_merge_requests_committers_approval)
+  end
+end
diff --git a/db/migrate/20200210135504_remove_packages_deprecated_dependencies.rb b/db/migrate/20200210135504_remove_packages_deprecated_dependencies.rb
new file mode 100644
index 00000000000..476b3de659a
--- /dev/null
+++ b/db/migrate/20200210135504_remove_packages_deprecated_dependencies.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class RemovePackagesDeprecatedDependencies < ActiveRecord::Migration[6.0]
+  DOWNTIME = false
+
+  def up
+    execute('DELETE FROM packages_dependency_links WHERE dependency_type = 5')
+  end
+
+  def down
+    # There is nothing to do to reverse this migration
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 178a5c299bc..bce47ba1c72 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -346,6 +346,9 @@ ActiveRecord::Schema.define(version: 2020_02_13_204737) do
     t.integer "elasticsearch_indexed_field_length_limit", default: 0, null: false
     t.integer "elasticsearch_max_bulk_size_mb", limit: 2, default: 10, null: false
     t.integer "elasticsearch_max_bulk_concurrency", limit: 2, default: 10, null: false
+    t.boolean "disable_overriding_approvers_per_merge_request", default: false, null: false
+    t.boolean "prevent_merge_requests_author_approval", default: false, null: false
+    t.boolean "prevent_merge_requests_committers_approval", default: false, null: false
     t.index ["custom_project_templates_group_id"], name: "index_application_settings_on_custom_project_templates_group_id"
     t.index ["file_template_project_id"], name: "index_application_settings_on_file_template_project_id"
     t.index ["instance_administration_project_id"], name: "index_applicationsettings_on_instance_administration_project_id"
diff --git a/doc/api/groups.md b/doc/api/groups.md
index 3d2ac8c1e18..de0b2543645 100644
--- a/doc/api/groups.md
+++ b/doc/api/groups.md
@@ -798,7 +798,7 @@ DELETE /groups/:id/hooks/:hook_id
 
 Group audit events can be accessed via the [Group Audit Events API](audit_events.md#group-audit-events-starter)
 
-## Sync group with LDAP **(CORE ONLY)**
+## Sync group with LDAP **(STARTER)**
 
 Syncs the group with its linked LDAP group. Only available to group owners and administrators.
 
@@ -814,7 +814,23 @@ Parameters:
 
 Please consult the [Group Members](members.md) documentation.
 
-### Add LDAP group link **(CORE ONLY)**
+## LDAP Group Links
+
+List, add, and delete LDAP group links.
+
+### List LDAP group links **(STARTER)**
+
+Lists LDAP group links.
+
+```
+GET /groups/:id/ldap_group_links
+```
+
+Parameters:
+
+- `id` (required) - The ID of a group
+
+### Add LDAP group link **(STARTER)**
 
 Adds an LDAP group link.
 
@@ -829,7 +845,7 @@ Parameters:
 - `group_access` (required) - Minimum access level for members of the LDAP group
 - `provider` (required) - LDAP provider for the LDAP group
 
-### Delete LDAP group link **(CORE ONLY)**
+### Delete LDAP group link **(STARTER)**
 
 Deletes an LDAP group link.
 
diff --git a/doc/api/users.md b/doc/api/users.md
index 2dd07ab8a4e..701929520f4 100644
--- a/doc/api/users.md
+++ b/doc/api/users.md
@@ -437,6 +437,19 @@ Note, at the moment this method does only return a `404` error,
 even in cases where a `409` (Conflict) would be more appropriate,
 e.g. when renaming the email address to some existing one.
 
+## Delete authentication identity from user
+
+Deletes a user's authentication identity using the provider name associated with that identity. Available only for administrators.
+
+```
+DELETE /users/:id/identities/:provider
+```
+
+Parameters:
+
+- `id` (required) - The ID of the user
+- `provider` (required) - External provider name
+
 ## User deletion
 
 Deletes a user. Available only for administrators.
diff --git a/doc/ci/yaml/README.md b/doc/ci/yaml/README.md
index aa2890ed9db..3367fac5137 100644
--- a/doc/ci/yaml/README.md
+++ b/doc/ci/yaml/README.md
@@ -2248,6 +2248,7 @@ and bring back the old behavior.
 
 > - [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/issues/47063) in GitLab 12.2.
 > - In GitLab 12.3, maximum number of jobs in `needs` array raised from five to 50.
+> - [Introduced](https://gitlab.com/gitlab-org/gitlab/issues/30631) in GitLab 12.8, `needs: []` lets jobs start immediately.
 
 The `needs:` keyword enables executing jobs out-of-order, allowing you to implement
 a [directed acyclic graph](../directed_acyclic_graph/index.md) in your `.gitlab-ci.yml`.
@@ -2264,6 +2265,10 @@ linux:build:
 mac:build:
   stage: build
 
+lint:
+  stage: test
+  needs: []
+
 linux:rspec:
   stage: test
   needs: ["linux:build"]
@@ -2284,7 +2289,9 @@ production:
   stage: deploy
 ```
 
-This example creates three paths of execution:
+This example creates four paths of execution:
+
+- Linter: the `lint` job will run immediately without waiting for the `build` stage to complete because it has no needs (`needs: []`).
 
 - Linux path: the `linux:rspec` and `linux:rubocop` jobs will be run as soon
   as the `linux:build` job finishes without waiting for `mac:build` to finish.
@@ -2308,9 +2315,6 @@ This example creates three paths of execution:
   - For self-managed instances, the limit is:
     - 10, if the `ci_dag_limit_needs` feature flag is enabled (default).
     - 50, if the `ci_dag_limit_needs` feature flag is disabled.
-- It is impossible for now to have `needs: []` (empty needs), the job always needs to
-  depend on something, unless this is the job in the first stage. However, support for
-  an empty needs array [is planned](https://gitlab.com/gitlab-org/gitlab/issues/30631).
 - If `needs:` refers to a job that is marked as `parallel:`.
   the current job will depend on all parallel jobs created.
 - `needs:` is similar to `dependencies:` in that it needs to use jobs from prior stages,
diff --git a/doc/user/admin_area/index.md b/doc/user/admin_area/index.md
index 7d710e3b2c1..2e502c1b6fb 100644
--- a/doc/user/admin_area/index.md
+++ b/doc/user/admin_area/index.md
@@ -28,7 +28,7 @@ The Admin Area is made up of the following sections:
 | Abuse Reports                   | Manage [abuse reports](abuse_reports.md) submitted by your users.                                                                                                                                                                                                                        |
 | License **(STARTER ONLY)**      | Upload, display, and remove [licenses](license.md).                                                                                                                                                                                                                                      |
 | Kubernetes                      | Create and manage instance-level [Kubernetes clusters](../instance/clusters/index.md).                                                                                                                                                                                                   |
-| Push Rules **(STARTER)**        | Configure pre-defined Git [push rules](../../push_rules/push_rules.md) for projects.                                                                                                                                                                                                     |
+Push Rules **(STARTER ONLY)**   | Configure pre-defined Git [push rules](../../push_rules/push_rules.md) for projects. Also, configure [merge requests approvers rules](merge_requests_approvals.md). **(PREMIUM ONLY)**                                                                                                                                                                                                   |
 | Geo **(PREMIUM ONLY)**          | Configure and maintain [Geo nodes](geo_nodes.md).                                                                                                                                                                                                                                        |
 | Deploy Keys                     | Create instance-wide [SSH deploy keys](../../ssh/README.md#deploy-keys).                                                                                                                                                                                                                 |
 | Credentials **(ULTIMATE ONLY)** | View [credentials](credentials_inventory.md) that can be used to access your instance.                                                                                                                                                                                                   |
diff --git a/doc/user/admin_area/merge_requests_approvals.md b/doc/user/admin_area/merge_requests_approvals.md
new file mode 100644
index 00000000000..4138dc27066
--- /dev/null
+++ b/doc/user/admin_area/merge_requests_approvals.md
@@ -0,0 +1,33 @@
+---
+type: reference, concepts
+---
+
+# Instance-level merge request approval rules **(PREMIUM ONLY)**
+
+> Introduced in [GitLab Premium](https://gitlab.com/gitlab-org/gitlab/issues/39060) 12.8.
+
+Merge request approvals rules prevent users overriding certain settings on a project
+level. When configured, only administrators can change these settings on a project level
+if they are enabled at an instance level.
+
+To enable merge request approval rules for an instance:
+
+1. Navigate to **{admin}** **Admin Area >** **{push-rules}** **Push Rules** and expand **Merge
+   requests approvals**.
+1. Set the required rule.
+1. Click **Save changes**.
+
+GitLab administrators can later override these settings in a project’s settings.
+
+## Available rules
+
+Merge request approval rules that can be set at an instance level are:
+
+- **Prevent approval of merge requests by merge request author**. Prevents non-admins
+  from allowing merge request authors to merge their own merge requests in individual
+  projects.
+- **Prevent approval of merge requests by merge request committers**. Prevents
+  non-admins from allowing merge request committers to merge merge requests they were
+  committing to in individual projects.
+- **Prevent users from modifying merge request approvers list**. Prevents non-admins
+  from modifying approvers list in project settings and in individual merge requests.
diff --git a/lib/api/users.rb b/lib/api/users.rb
index 4892a1fdd5b..c6dc7c08b11 100644
--- a/lib/api/users.rb
+++ b/lib/api/users.rb
@@ -225,6 +225,27 @@ module API
       end
       # rubocop: enable CodeReuse/ActiveRecord
 
+      desc "Delete a user's identity. Available only for admins" do
+        success Entities::UserWithAdmin
+      end
+      params do
+        requires :id, type: Integer, desc: 'The ID of the user'
+        requires :provider, type: String, desc: 'The external provider'
+      end
+      # rubocop: disable CodeReuse/ActiveRecord
+      delete ":id/identities/:provider" do
+        authenticated_as_admin!
+
+        user = User.find_by(id: params[:id])
+        not_found!('User') unless user
+
+        identity = user.identities.find_by(provider: params[:provider])
+        not_found!('Identity') unless identity
+
+        destroy_conditionally!(identity)
+      end
+      # rubocop: enable CodeReuse/ActiveRecord
+
       desc 'Add an SSH key to a specified user. Available only for admins.' do
         success Entities::SSHKey
       end
diff --git a/lib/gitlab/ci/config/entry/needs.rb b/lib/gitlab/ci/config/entry/needs.rb
index 5301c453ed4..d7ba8624882 100644
--- a/lib/gitlab/ci/config/entry/needs.rb
+++ b/lib/gitlab/ci/config/entry/needs.rb
@@ -11,12 +11,14 @@ module Gitlab
           include ::Gitlab::Config::Entry::Validatable
 
           validations do
-            validates :config, presence: true
-
             validate do
               unless config.is_a?(Hash) || config.is_a?(Array)
                 errors.add(:config, 'can only be a Hash or an Array')
               end
+
+              if config.is_a?(Hash) && config.empty?
+                errors.add(:config, 'can not be an empty Hash')
+              end
             end
 
             validate on: :composed do
diff --git a/lib/gitlab/import_export/group_import_export.yml b/lib/gitlab/import_export/group_import_export.yml
index d7fbbbe0422..7dcfbed8968 100644
--- a/lib/gitlab/import_export/group_import_export.yml
+++ b/lib/gitlab/import_export/group_import_export.yml
@@ -28,8 +28,15 @@ included_attributes:
 excluded_attributes:
   group:
     - :id
+    - :name
+    - :path
+    - :owner_id
+    - :parent_id
+    - :created_at
+    - :updated_at
     - :runners_token
     - :runners_token_encrypted
+    - :saml_discovery_token
 
 methods:
   labels:
diff --git a/lib/gitlab_danger.rb b/lib/gitlab_danger.rb
index 499ae6111d7..e776e2b7ea3 100644
--- a/lib/gitlab_danger.rb
+++ b/lib/gitlab_danger.rb
@@ -18,7 +18,6 @@ class GitlabDanger
     changelog
     specs
     roulette
-    single_codebase
     gitlab_ui_wg
     ce_ee_vue_templates
   ].freeze
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index cfb1e7d8ca2..f8d3c389bf7 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -11917,6 +11917,9 @@ msgstr ""
 msgid "Merge requests"
 msgstr ""
 
+msgid "Merge requests approvals"
+msgstr ""
+
 msgid "Merge requests are a place to propose changes you've made to a project and discuss those changes with others"
 msgstr ""
 
@@ -14161,6 +14164,9 @@ msgstr ""
 msgid "Prevent users from changing their profile name"
 msgstr ""
 
+msgid "Prevent users from modifing merge request approvers list"
+msgstr ""
+
 msgid "Preview"
 msgstr ""
 
@@ -16385,6 +16391,9 @@ msgstr ""
 msgid "Rook"
 msgstr ""
 
+msgid "Rules that define what git pushes are accepted for a project. All newly created projects will use these settings."
+msgstr ""
+
 msgid "Run CI/CD pipelines for external repositories"
 msgstr ""
 
@@ -17427,6 +17436,9 @@ msgstr ""
 msgid "Settings"
 msgstr ""
 
+msgid "Settings to prevent self-approval across all projects in the instance. Only an administrator can modify these settings."
+msgstr ""
+
 msgid "Severity: %{severity}"
 msgstr ""
 
diff --git a/spec/factories/ci/build_need.rb b/spec/factories/ci/build_need.rb
index fa72e696343..aa571ffabb7 100644
--- a/spec/factories/ci/build_need.rb
+++ b/spec/factories/ci/build_need.rb
@@ -2,7 +2,7 @@
 
 FactoryBot.define do
   factory :ci_build_need, class: 'Ci::BuildNeed' do
-    build factory: :ci_build
+    build factory: :ci_build, scheduling_type: :dag
     sequence(:name) { |n| "build_#{n}" }
   end
 end
diff --git a/spec/fixtures/lib/gitlab/import_export/group_exports/complex/group.json b/spec/fixtures/lib/gitlab/import_export/group_exports/complex/group.json
index 7cd91ff225b..504daae8abd 100644
--- a/spec/fixtures/lib/gitlab/import_export/group_exports/complex/group.json
+++ b/spec/fixtures/lib/gitlab/import_export/group_exports/complex/group.json
@@ -1,7 +1,7 @@
 {
   "name": "ymg09t5704clnxnqfgaj2h098gz4r7gyx4wc3fzmlqj1en24zf",
   "path": "ymg09t5704clnxnqfgaj2h098gz4r7gyx4wc3fzmlqj1en24zf",
-  "owner_id": null,
+  "owner_id": 123,
   "created_at": "2019-11-20 17:01:53 UTC",
   "updated_at": "2019-11-20 17:05:44 UTC",
   "description": "Group Description",
@@ -18,7 +18,7 @@
   "ldap_sync_last_successful_update_at": null,
   "ldap_sync_last_sync_at": null,
   "lfs_enabled": null,
-  "parent_id": null,
+  "parent_id": 7,
   "shared_runners_minutes_limit": null,
   "repository_size_limit": null,
   "require_two_factor_authentication": false,
@@ -33,6 +33,8 @@
   "extra_shared_runners_minutes_limit": null,
   "last_ci_minutes_notification_at": null,
   "last_ci_minutes_usage_notification_level": null,
+  "runners_token": "token",
+  "runners_token_encrypted": "encrypted",
   "subgroup_creation_level": 1,
   "emails_disabled": null,
   "max_pages_size": null,
diff --git a/spec/lib/gitlab/import_export/group_tree_restorer_spec.rb b/spec/lib/gitlab/import_export/group_tree_restorer_spec.rb
index 4d52f1fdda3..9aa9471d155 100644
--- a/spec/lib/gitlab/import_export/group_tree_restorer_spec.rb
+++ b/spec/lib/gitlab/import_export/group_tree_restorer_spec.rb
@@ -71,6 +71,44 @@ describe Gitlab::ImportExport::GroupTreeRestorer do
     end
   end
 
+  context 'excluded attributes' do
+    let!(:source_user) { create(:user, id: 123) }
+    let!(:importer_user) { create(:user) }
+    let(:group) { create(:group) }
+    let(:shared) { Gitlab::ImportExport::Shared.new(group) }
+    let(:group_tree_restorer) { described_class.new(user: importer_user, shared: shared, group: group, group_hash: nil) }
+    let(:group_json) { ActiveSupport::JSON.decode(IO.read(File.join(shared.export_path, 'group.json'))) }
+
+    shared_examples 'excluded attributes' do
+      excluded_attributes = %w[
+        id
+        name
+        path
+        owner_id
+        parent_id
+        created_at
+        updated_at
+        runners_token
+        runners_token_encrypted
+        saml_discovery_token
+      ]
+
+      before do
+        group.add_owner(importer_user)
+
+        setup_import_export_config('group_exports/complex')
+      end
+
+      excluded_attributes.each do |excluded_attribute|
+        it 'does not allow override of excluded attributes' do
+          expect(group_json[excluded_attribute]).not_to eq(group.public_send(excluded_attribute))
+        end
+      end
+    end
+
+    include_examples 'excluded attributes'
+  end
+
   context 'group.json file access check' do
     let(:user) { create(:user) }
     let!(:group) { create(:group, name: 'group2', path: 'group2') }
diff --git a/spec/lib/gitlab/import_export/group_tree_saver_spec.rb b/spec/lib/gitlab/import_export/group_tree_saver_spec.rb
index 17538db3c68..d6aea8d1e69 100644
--- a/spec/lib/gitlab/import_export/group_tree_saver_spec.rb
+++ b/spec/lib/gitlab/import_export/group_tree_saver_spec.rb
@@ -157,9 +157,28 @@ describe Gitlab::ImportExport::GroupTreeSaver do
       end
 
       context 'group attributes' do
-        it 'does not contain the runners token' do
-          expect(saved_group_json).not_to include("runners_token" => 'token')
+        shared_examples 'excluded attributes' do
+          excluded_attributes = %w[
+            id
+            name
+            path
+            owner_id
+            parent_id
+            created_at
+            updated_at
+            runners_token
+            runners_token_encrypted
+            saml_discovery_token
+          ]
+
+          excluded_attributes.each do |excluded_attribute|
+            it 'does not contain excluded attribute' do
+              expect(saved_group_json).not_to include(excluded_attribute => group.public_send(excluded_attribute))
+            end
+          end
         end
+
+        include_examples 'excluded attributes'
       end
     end
   end
diff --git a/spec/migrations/remove_packages_deprecated_dependencies_spec.rb b/spec/migrations/remove_packages_deprecated_dependencies_spec.rb
new file mode 100644
index 00000000000..0b7efe371a6
--- /dev/null
+++ b/spec/migrations/remove_packages_deprecated_dependencies_spec.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require Rails.root.join('db', 'migrate', '20200210135504_remove_packages_deprecated_dependencies.rb')
+
+describe RemovePackagesDeprecatedDependencies, :migration do
+  let(:projects) { table(:projects) }
+  let(:packages) { table(:packages_packages) }
+  let(:dependency_links) { table(:packages_dependency_links) }
+  let(:dependencies) { table(:packages_dependencies) }
+
+  before do
+    projects.create!(id: 123, name: 'gitlab', path: 'gitlab-org/gitlab-ce', namespace_id: 1)
+    packages.create!(id: 1, name: 'package', version: '1.0.0', package_type: 4, project_id: 123)
+    5.times do |i|
+      dependencies.create!(id: i, name: "pkg_dependency_#{i}", version_pattern: '~1.0.0')
+      dependency_links.create!(package_id: 1, dependency_id: i, dependency_type: 5)
+    end
+    dependencies.create!(id: 10, name: 'valid_pkg_dependency', version_pattern: '~2.5.0')
+    dependency_links.create!(package_id: 1, dependency_id: 10, dependency_type: 1)
+  end
+
+  it 'removes all dependency links with type 5' do
+    expect(dependency_links.count).to eq 6
+
+    migrate!
+
+    expect(dependency_links.count).to eq 1
+  end
+end
diff --git a/spec/models/ci/build_spec.rb b/spec/models/ci/build_spec.rb
index 65fd9b049d6..4bfb5771bb8 100644
--- a/spec/models/ci/build_spec.rb
+++ b/spec/models/ci/build_spec.rb
@@ -762,8 +762,10 @@ describe Ci::Build do
       let(:needs) { }
 
       let!(:final) do
+        scheduling_type = needs.present? ? :dag : :stage
+
         create(:ci_build,
-          pipeline: pipeline, name: 'final',
+          pipeline: pipeline, name: 'final', scheduling_type: scheduling_type,
           stage_idx: 3, stage: 'deploy', options: {
             dependencies: dependencies
           }
diff --git a/spec/models/ci/processable_spec.rb b/spec/models/ci/processable_spec.rb
index f3d743fc272..1e0544c14c5 100644
--- a/spec/models/ci/processable_spec.rb
+++ b/spec/models/ci/processable_spec.rb
@@ -120,4 +120,29 @@ describe Ci::Processable do
       end
     end
   end
+
+  describe '.populate_scheduling_type!' do
+    let!(:build_without_needs) { create(:ci_build, project: project, pipeline: pipeline) }
+    let!(:build_with_needs) { create(:ci_build, project: project, pipeline: pipeline) }
+    let!(:needs_relation) { create(:ci_build_need, build: build_with_needs) }
+    let!(:another_build) { create(:ci_build, project: project) }
+
+    before do
+      Ci::Processable.update_all(scheduling_type: nil)
+    end
+
+    it 'populates scheduling_type of processables' do
+      expect do
+        pipeline.processables.populate_scheduling_type!
+      end.to change(pipeline.processables.where(scheduling_type: nil), :count).from(2).to(0)
+
+      expect(build_without_needs.reload.scheduling_type).to eq('stage')
+      expect(build_with_needs.reload.scheduling_type).to eq('dag')
+    end
+
+    it 'does not affect processables from other pipelines' do
+      pipeline.processables.populate_scheduling_type!
+      expect(another_build.reload.scheduling_type).to be_nil
+    end
+  end
 end
diff --git a/spec/models/project_services/youtrack_service_spec.rb b/spec/models/project_services/youtrack_service_spec.rb
index dcc40d8f343..0067793f8d8 100644
--- a/spec/models/project_services/youtrack_service_spec.rb
+++ b/spec/models/project_services/youtrack_service_spec.rb
@@ -37,6 +37,10 @@ describe YoutrackService do
     it 'does allow project prefix on the reference' do
       expect(described_class.reference_pattern.match('YT-123')[:issue]).to eq('YT-123')
     end
+
+    it 'does not allow issue number to be followed by a letter' do
+      expect(described_class.reference_pattern.match('YT-123A')).to eq(nil)
+    end
   end
 
   context 'overriding properties' do
diff --git a/spec/requests/api/users_spec.rb b/spec/requests/api/users_spec.rb
index d14baa49341..12ac601c013 100644
--- a/spec/requests/api/users_spec.rb
+++ b/spec/requests/api/users_spec.rb
@@ -949,6 +949,45 @@ describe API::Users do
     end
   end
 
+  describe "DELETE /users/:id/identities/:provider" do
+    let(:test_user) { create(:omniauth_user, provider: 'ldapmain') }
+
+    context 'when unauthenticated' do
+      it 'returns authentication error' do
+        delete api("/users/#{test_user.id}/identities/ldapmain")
+
+        expect(response).to have_gitlab_http_status(:unauthorized)
+      end
+    end
+
+    context 'when authenticated' do
+      it 'deletes identity of given provider' do
+        expect do
+          delete api("/users/#{test_user.id}/identities/ldapmain", admin)
+        end.to change { test_user.identities.count }.by(-1)
+        expect(response).to have_gitlab_http_status(:no_content)
+      end
+
+      it_behaves_like '412 response' do
+        let(:request) { api("/users/#{test_user.id}/identities/ldapmain", admin) }
+      end
+
+      it 'returns 404 error if user not found' do
+        delete api("/users/0/identities/ldapmain", admin)
+
+        expect(response).to have_gitlab_http_status(:not_found)
+        expect(json_response['message']).to eq('404 User Not Found')
+      end
+
+      it 'returns 404 error if identity not found' do
+        delete api("/users/#{test_user.id}/identities/saml", admin)
+
+        expect(response).to have_gitlab_http_status(:not_found)
+        expect(json_response['message']).to eq('404 Identity Not Found')
+      end
+    end
+  end
+
   describe "POST /users/:id/keys" do
     before do
       admin
diff --git a/spec/services/ci/create_pipeline_service/needs_spec.rb b/spec/services/ci/create_pipeline_service/needs_spec.rb
index 757c076f9e6..17b9cf80cc1 100644
--- a/spec/services/ci/create_pipeline_service/needs_spec.rb
+++ b/spec/services/ci/create_pipeline_service/needs_spec.rb
@@ -175,5 +175,67 @@ describe Ci::CreatePipelineService do
           .to eq('jobs:test_a:needs:need artifacts should be a boolean value')
       end
     end
+
+    context 'when needs is empty array' do
+      let(:config) do
+        <<~YAML
+          build_a:
+            stage: build
+            script: ls
+          test_a:
+            stage: test
+            script: ls
+          test_b:
+            stage: test
+            script: ls
+            needs: []
+          deploy_a:
+            stage: deploy
+            script: ls
+            needs: [test_a]
+          deploy_b:
+            stage: deploy
+            script: ls
+            when: manual
+            needs: []
+        YAML
+      end
+
+      it 'creates a pipeline with build_a and test_b pending; deploy_b manual' do
+        processables = pipeline.processables
+
+        build_a = processables.find { |processable| processable.name == 'build_a' }
+        test_a = processables.find { |processable| processable.name == 'test_a' }
+        test_b = processables.find { |processable| processable.name == 'test_b' }
+        deploy_a = processables.find { |processable| processable.name == 'deploy_a' }
+        deploy_b = processables.find { |processable| processable.name == 'deploy_b' }
+
+        expect(pipeline).to be_persisted
+        expect(build_a.status).to eq('pending')
+        expect(test_a.status).to eq('created')
+        expect(test_b.status).to eq('pending')
+        expect(deploy_a.status).to eq('created')
+        expect(deploy_b.status).to eq('manual')
+      end
+    end
+
+    context 'when needs is empty hash' do
+      let(:config) do
+        <<~YAML
+          regular_job:
+            stage: build
+            script: echo 'hello'
+          invalid_dag_job:
+            stage: test
+            script: ls
+            needs: {}
+        YAML
+      end
+
+      it 'raises error' do
+        expect(pipeline.yaml_errors)
+          .to eq('jobs:invalid_dag_job:needs config can not be an empty hash')
+      end
+    end
   end
 end
diff --git a/spec/services/ci/pipeline_processing/atomic_processing_service_spec.rb b/spec/services/ci/pipeline_processing/atomic_processing_service_spec.rb
index 38686b41a22..cbeb45b92ff 100644
--- a/spec/services/ci/pipeline_processing/atomic_processing_service_spec.rb
+++ b/spec/services/ci/pipeline_processing/atomic_processing_service_spec.rb
@@ -9,4 +9,10 @@ describe Ci::PipelineProcessing::AtomicProcessingService do
   end
 
   it_behaves_like 'Pipeline Processing Service'
+
+  private
+
+  def process_pipeline(initial_process: false)
+    described_class.new(pipeline).execute
+  end
 end
diff --git a/spec/services/ci/pipeline_processing/legacy_processing_service_spec.rb b/spec/services/ci/pipeline_processing/legacy_processing_service_spec.rb
index 2da1eb19818..09b462b7600 100644
--- a/spec/services/ci/pipeline_processing/legacy_processing_service_spec.rb
+++ b/spec/services/ci/pipeline_processing/legacy_processing_service_spec.rb
@@ -9,4 +9,10 @@ describe Ci::PipelineProcessing::LegacyProcessingService do
   end
 
   it_behaves_like 'Pipeline Processing Service'
+
+  private
+
+  def process_pipeline(initial_process: false)
+    described_class.new(pipeline).execute(initial_process: initial_process)
+  end
 end
diff --git a/spec/services/ci/pipeline_processing/shared_processing_service.rb b/spec/services/ci/pipeline_processing/shared_processing_service.rb
index cae5ae3f09d..2349dedf370 100644
--- a/spec/services/ci/pipeline_processing/shared_processing_service.rb
+++ b/spec/services/ci/pipeline_processing/shared_processing_service.rb
@@ -710,10 +710,10 @@ shared_examples 'Pipeline Processing Service' do
   context 'when pipeline with needs is created', :sidekiq_inline do
     let!(:linux_build) { create_build('linux:build', stage: 'build', stage_idx: 0) }
     let!(:mac_build) { create_build('mac:build', stage: 'build', stage_idx: 0) }
-    let!(:linux_rspec) { create_build('linux:rspec', stage: 'test', stage_idx: 1) }
-    let!(:linux_rubocop) { create_build('linux:rubocop', stage: 'test', stage_idx: 1) }
-    let!(:mac_rspec) { create_build('mac:rspec', stage: 'test', stage_idx: 1) }
-    let!(:mac_rubocop) { create_build('mac:rubocop', stage: 'test', stage_idx: 1) }
+    let!(:linux_rspec) { create_build('linux:rspec', stage: 'test', stage_idx: 1, scheduling_type: :dag) }
+    let!(:linux_rubocop) { create_build('linux:rubocop', stage: 'test', stage_idx: 1, scheduling_type: :dag) }
+    let!(:mac_rspec) { create_build('mac:rspec', stage: 'test', stage_idx: 1, scheduling_type: :dag) }
+    let!(:mac_rubocop) { create_build('mac:rubocop', stage: 'test', stage_idx: 1, scheduling_type: :dag) }
     let!(:deploy) { create_build('deploy', stage: 'deploy', stage_idx: 2) }
 
     let!(:linux_rspec_on_build) { create(:ci_build_need, build: linux_rspec, name: 'linux:build') }
@@ -795,7 +795,7 @@ shared_examples 'Pipeline Processing Service' do
     end
 
     context 'when one of the jobs is run on a failure' do
-      let!(:linux_notify) { create_build('linux:notify', stage: 'deploy', stage_idx: 2, when: 'on_failure') }
+      let!(:linux_notify) { create_build('linux:notify', stage: 'deploy', stage_idx: 2, when: 'on_failure', scheduling_type: :dag) }
 
       let!(:linux_notify_on_build) { create(:ci_build_need, build: linux_notify, name: 'linux:build') }
 
@@ -837,10 +837,47 @@ shared_examples 'Pipeline Processing Service' do
         end
       end
     end
-  end
 
-  def process_pipeline
-    described_class.new(pipeline).execute
+    context 'when there is a job scheduled with dag but no need (needs: [])' do
+      let!(:deploy_pages) { create_build('deploy_pages', stage: 'deploy', stage_idx: 2, scheduling_type: :dag) }
+
+      it 'runs deploy_pages without waiting prior stages' do
+        # Ci::PipelineProcessing::LegacyProcessingService requires :initial_process parameter
+        expect(process_pipeline(initial_process: true)).to be_truthy
+
+        expect(stages).to eq(%w(pending created pending))
+        expect(builds.pending).to contain_exactly(linux_build, mac_build, deploy_pages)
+
+        linux_build.reset.success!
+        deploy_pages.reset.success!
+
+        expect(stages).to eq(%w(running pending running))
+        expect(builds.success).to contain_exactly(linux_build, deploy_pages)
+        expect(builds.pending).to contain_exactly(mac_build, linux_rspec, linux_rubocop)
+
+        linux_rspec.reset.success!
+        linux_rubocop.reset.success!
+        mac_build.reset.success!
+        mac_rspec.reset.success!
+        mac_rubocop.reset.success!
+
+        expect(stages).to eq(%w(success success running))
+        expect(builds.pending).to contain_exactly(deploy)
+      end
+
+      context 'when ci_dag_support is disabled' do
+        before do
+          stub_feature_flags(ci_dag_support: false)
+        end
+
+        it 'does run deploy_pages at the start' do
+          expect(process_pipeline).to be_truthy
+
+          expect(stages).to eq(%w(pending created created))
+          expect(builds.pending).to contain_exactly(linux_build, mac_build)
+        end
+      end
+    end
   end
 
   def all_builds
diff --git a/spec/services/ci/process_pipeline_service_spec.rb b/spec/services/ci/process_pipeline_service_spec.rb
index 40ae1c4029b..6f5a070d73d 100644
--- a/spec/services/ci/process_pipeline_service_spec.rb
+++ b/spec/services/ci/process_pipeline_service_spec.rb
@@ -33,6 +33,25 @@ describe Ci::ProcessPipelineService do
     end
   end
 
+  context 'with a pipeline which has processables with nil scheduling_type', :clean_gitlab_redis_shared_state do
+    let!(:build1) { create_build('build1') }
+    let!(:build2) { create_build('build2') }
+    let!(:build3) { create_build('build3', scheduling_type: :dag) }
+    let!(:build3_on_build2) { create(:ci_build_need, build: build3, name: 'build2') }
+
+    before do
+      pipeline.processables.update_all(scheduling_type: nil)
+    end
+
+    it 'populates scheduling_type before processing' do
+      process_pipeline
+
+      expect(build1.scheduling_type).to eq('stage')
+      expect(build2.scheduling_type).to eq('stage')
+      expect(build3.scheduling_type).to eq('dag')
+    end
+  end
+
   def process_pipeline
     described_class.new(pipeline).execute
   end
diff --git a/spec/services/ci/retry_pipeline_service_spec.rb b/spec/services/ci/retry_pipeline_service_spec.rb
index e7a241ed335..7db871adc9a 100644
--- a/spec/services/ci/retry_pipeline_service_spec.rb
+++ b/spec/services/ci/retry_pipeline_service_spec.rb
@@ -95,7 +95,7 @@ describe Ci::RetryPipelineService, '#execute' do
       before do
         create_build('build', :success, 0)
         create_build('build2', :success, 0)
-        test_build = create_build('test', :failed, 1)
+        test_build = create_build('test', :failed, 1, scheduling_type: :dag)
         create(:ci_build_need, build: test_build, name: 'build')
         create(:ci_build_need, build: test_build, name: 'build2')
       end
@@ -108,6 +108,21 @@ describe Ci::RetryPipelineService, '#execute' do
         expect(build('test')).to be_pending
         expect(build('test').needs.map(&:name)).to match_array(%w(build build2))
       end
+
+      context 'when there is a failed DAG test without needs' do
+        before do
+          create_build('deploy', :failed, 2, scheduling_type: :dag)
+        end
+
+        it 'retries the test' do
+          service.execute(pipeline)
+
+          expect(build('build')).to be_success
+          expect(build('build2')).to be_success
+          expect(build('test')).to be_pending
+          expect(build('deploy')).to be_pending
+        end
+      end
     end
 
     context 'when the last stage was skipepd' do