Merge branch 'master' into 38395-mr-widget-ci38395-mr-widget-ci

* master: (120 commits)
  Remove comments in JSON.
  Add changelog
  Adds typescript support in webpack. With Mike G.
  Add note on registry restrictions on GitLab.com
  fix karma config file
  Remove truncate mixin
  Update mr_widget_options_spec.js
  Change cursor to pointer on hover
  Simplify design for no tags, branches
  Cleanup tests
  Improve GitLab Import rake task to work with Hashed Storage and Subgroups
  Upgrade vendored templates
  Remove EE-specific group paths
  Check redirecting with a querystring
  Update failure message when finding new routes in `PathRegex`
  Free up some group reserved words
  Free up `avatar`, `group_members` and `milestones` as paths
  Free up `labels` as a group name
  Add helper methods to redirect legacy paths
  Fix db/schema.rb
  ...

1 files changed, 22 insertions, 0 deletions

diff --git a/app/services/clusters/applications/schedule_installation_service.rb b/app/services/clusters/applications/schedule_installation_service.rb
new file mode 100644
index 00000000000..eb8caa68ef7
--- /dev/null
+++ b/app/services/clusters/applications/schedule_installation_service.rb
@@ -0,0 +1,22 @@
+module Clusters
+  module Applications
+    class ScheduleInstallationService < ::BaseService
+      def execute
+        application_class.find_or_create_by!(cluster: cluster).try do |application|
+          application.make_scheduled!
+          ClusterInstallAppWorker.perform_async(application.name, application.id)
+        end
+      end
+
+      private
+
+      def application_class
+        params[:application_class]
+      end
+
+      def cluster
+        params[:cluster]
+      end
+    end
+  end
+end