Allow runners to be installed on group clusters

A runner installed on a cluster will now use the
cluster's `cluster_type` as its `runner_type`.

3 files changed, 15 insertions, 11 deletions

diff --git a/app/assets/javascripts/clusters/components/applications.vue b/app/assets/javascripts/clusters/components/applications.vue
index 5b206b82fe0..d54f9ce552c 100644
--- a/app/assets/javascripts/clusters/components/applications.vue
+++ b/app/assets/javascripts/clusters/components/applications.vue
@@ -393,7 +393,6 @@ export default {
         <div slot="description" v-html="prometheusDescription"></div>
       </application-row>
       <application-row
-        v-if="isProjectCluster"
         id="runner"
         :logo-url="gitlabLogo"
         :title="applications.runner.title"
@@ -409,9 +408,9 @@ export default {
       >
         <div slot="description">
           {{
-            s__(`ClusterIntegration|GitLab Runner connects to this
-            project's repository and executes CI/CD jobs,
-            pushing results back and deploying,
+            s__(`ClusterIntegration|GitLab Runner connects to the
+            repository and executes CI/CD jobs,
+            pushing results back and deploying
             applications to production.`)
           }}
         </div>
diff --git a/app/models/clusters/applications/runner.rb b/app/models/clusters/applications/runner.rb
index ef9cc4bd6d6..ec8f5cc40c0 100644
--- a/app/models/clusters/applications/runner.rb
+++ b/app/models/clusters/applications/runner.rb
@@ -13,7 +13,7 @@ module Clusters
       include ::Clusters::Concerns::ApplicationData
 
       belongs_to :runner, class_name: 'Ci::Runner', foreign_key: :runner_id
-      delegate :project, to: :cluster
+      delegate :project, :group, to: :cluster
 
       default_value_for :version, VERSION
 
@@ -55,12 +55,17 @@ module Clusters
       end
 
       def runner_create_params
-        {
+        attributes = {
           name: 'kubernetes-cluster',
-          runner_type: :project_type,
-          tag_list: %w(kubernetes cluster),
-          projects: [project]
+          runner_type: cluster.cluster_type,
+          tag_list: %w[kubernetes cluster]
         }
+
+        if cluster.group_type?
+          attributes.merge(groups: [group])
+        elsif cluster.project_type?
+          attributes.merge(projects: [project])
+        end
       end
 
       def gitlab_url
diff --git a/app/services/clusters/applications/create_service.rb b/app/services/clusters/applications/create_service.rb
index bd7c31bb981..c6f729aaa8a 100644
--- a/app/services/clusters/applications/create_service.rb
+++ b/app/services/clusters/applications/create_service.rb
@@ -13,7 +13,8 @@ module Clusters
         {
           "helm" => -> (cluster) { cluster.application_helm || cluster.build_application_helm },
           "ingress" => -> (cluster) { cluster.application_ingress || cluster.build_application_ingress },
-          "cert_manager" => -> (cluster) { cluster.application_cert_manager || cluster.build_application_cert_manager }
+          "cert_manager" => -> (cluster) { cluster.application_cert_manager || cluster.build_application_cert_manager },
+          "runner" => -> (cluster) { cluster.application_runner || cluster.build_application_runner }
         }.tap do |hash|
           hash.merge!(project_builders) if cluster.project_type?
         end
@@ -24,7 +25,6 @@ module Clusters
       def project_builders
         {
           "prometheus" => -> (cluster) { cluster.application_prometheus || cluster.build_application_prometheus },
-          "runner" => -> (cluster) { cluster.application_runner || cluster.build_application_runner },
           "jupyter" => -> (cluster) { cluster.application_jupyter || cluster.build_application_jupyter },
           "knative" => -> (cluster) { cluster.application_knative || cluster.build_application_knative }
         }