support group runners in existing API endpoints

lib/api/entities.rb

@@ -242,13 +242,18 @@ module API
       expose :requested_at
     end
 
-    class Group < Grape::Entity
-      expose :id, :name, :path, :description, :visibility
+    class BasicGroupDetails < Grape::Entity
+      expose :id
+      expose :web_url
+      expose :name
+    end
+
+    class Group < BasicGroupDetails
+      expose :path, :description, :visibility
       expose :lfs_enabled?, as: :lfs_enabled
       expose :avatar_url do |group, options|
         group.avatar_url(only_path: false)
       end
-      expose :web_url
       expose :request_access_enabled
       expose :full_name, :full_path
 
@@ -965,6 +970,13 @@ module API
           options[:current_user].authorized_projects.where(id: runner.projects)
         end
       end
+      expose :groups, with: Entities::BasicGroupDetails do |runner, options|
+        if options[:current_user].admin?
+          runner.groups
+        else
+          options[:current_user].authorized_groups.where(id: runner.groups)
+        end
+      end
     end
 
     class RunnerRegistrationDetails < Grape::Entity

lib/api/runner.rb

@@ -25,8 +25,11 @@ module API
             # Create shared runner. Requires admin access
             Ci::Runner.create(attributes.merge(is_shared: true))
           elsif project = Project.find_by(runners_token: params[:token])
-            # Create a specific runner for project.
+            # Create a specific runner for the project
             project.runners.create(attributes)
+          elsif group = Group.find_by(runners_token: params[:token])
+            # Create a specific runner for the group
+            group.runners.create(attributes)
           end
 
         break forbidden! unless runner

lib/api/runners.rb

@@ -199,6 +199,7 @@ module API
 
         forbidden!("Runner is shared") if runner.is_shared?
         forbidden!("Runner associated with more than one project") if runner.projects.count > 1
+        forbidden!("Runner associated with more that one group") if runner.groups.count > 1
         forbidden!("No access granted") unless user_can_access_runner?(runner)
       end
 

lib/api/v3/runners.rb

@@ -54,6 +54,7 @@ module API
 
           forbidden!("Runner is shared") if runner.is_shared?
           forbidden!("Runner associated with more than one project") if runner.projects.count > 1
+          forbidden!("Runner associated with more that one group") if runner.groups.count > 1
           forbidden!("No access granted") unless user_can_access_runner?(runner)
         end
 

spec/requests/api/runner_spec.rb

@@ -45,7 +45,7 @@ describe API::Runner do
         context 'when project token is used' do
           let(:project) { create(:project) }
 
-          it 'creates runner' do
+          it 'creates project runner' do
             post api('/runners'), token: project.runners_token
 
             expect(response).to have_gitlab_http_status 201
@@ -54,6 +54,19 @@ describe API::Runner do
             expect(Ci::Runner.first.token).not_to eq(project.runners_token)
           end
         end
+
+        context 'when group token is used' do
+          let(:group) { create(:group) }
+
+          it 'creates a group runner' do
+            post api('/runners'), token: group.runners_token
+
+            expect(response).to have_http_status 201
+            expect(group.runners.size).to eq(1)
+            expect(Ci::Runner.first.token).not_to eq(registration_token)
+            expect(Ci::Runner.first.token).not_to eq(group.runners_token)
+          end
+        end
       end
 
       context 'when runner description is provided' do

spec/requests/api/v3/runners_spec.rb

@@ -8,10 +8,16 @@ describe API::V3::Runners do
   let(:project) { create(:project, creator_id: user.id) }
   let(:project2) { create(:project, creator_id: user.id) }
 
+  let(:group) { create(:group).tap { |group| group.add_owner(user) } }
+  let(:group2) { create(:group).tap { |group| group.add_owner(user) } }
+
+  let!(:group_runner) { create(:ci_runner, description: 'Group runner', groups: [group]) }
+  let!(:two_groups_runner) { create(:ci_runner, description: 'Two groups runner', groups: [group, group2]) }
+
   let!(:shared_runner) { create(:ci_runner, :shared) }
   let!(:unused_specific_runner) { create(:ci_runner) }
 
-  let!(:specific_runner) do
+  let!(:project_runner) do
     create(:ci_runner).tap do |runner|
       create(:ci_runner_project, runner: runner, project: project)
     end
@@ -51,9 +57,17 @@ describe API::V3::Runners do
           end.to change { Ci::Runner.specific.count }.by(-1)
         end
 
-        it 'deletes used runner' do
+        it 'deletes used project runner' do
           expect do
-            delete v3_api("/runners/#{specific_runner.id}", admin)
+            delete v3_api("/runners/#{project_runner.id}", admin)
+
+            expect(response).to have_http_status(200)
+          end.to change { Ci::Runner.specific.count }.by(-1)
+        end
+
+        it 'deletes used group runner' do
+          expect do
+            delete v3_api("/runners/#{group_runner.id}", admin)
 
             expect(response).to have_gitlab_http_status(200)
           end.to change { Ci::Runner.specific.count }.by(-1)
@@ -77,18 +91,31 @@ describe API::V3::Runners do
 
       context 'when runner is not shared' do
         it 'does not delete runner without access to it' do
-          delete v3_api("/runners/#{specific_runner.id}", user2)
+          delete v3_api("/runners/#{project_runner.id}", user2)
           expect(response).to have_gitlab_http_status(403)
         end
 
-        it 'does not delete runner with more than one associated project' do
+        it 'does not delete project runner with more than one associated project' do
           delete v3_api("/runners/#{two_projects_runner.id}", user)
           expect(response).to have_gitlab_http_status(403)
         end
 
-        it 'deletes runner for one owned project' do
+        it 'deletes project runner for one owned project' do
+          expect do
+            delete v3_api("/runners/#{group_runner.id}", user)
+
+            expect(response).to have_http_status(200)
+          end.to change { Ci::Runner.specific.count }.by(-1)
+        end
+
+        it 'does not delete group runner with more than one associated project' do
+          delete v3_api("/runners/#{two_groups_runner.id}", user)
+          expect(response).to have_http_status(403)
+        end
+
+        it 'deletes group runner for one owned project' do
           expect do
-            delete v3_api("/runners/#{specific_runner.id}", user)
+            delete v3_api("/runners/#{project_runner.id}", user)
 
             expect(response).to have_gitlab_http_status(200)
           end.to change { Ci::Runner.specific.count }.by(-1)
@@ -97,8 +124,14 @@ describe API::V3::Runners do
     end
 
     context 'unauthorized user' do
-      it 'does not delete runner' do
-        delete v3_api("/runners/#{specific_runner.id}")
+      it 'does not delete project runner' do
+        delete v3_api("/runners/#{project_runner.id}")
+
+        expect(response).to have_http_status(401)
+      end
+
+      it 'does not delete group runner' do
+        delete v3_api("/runners/#{group_runner.id}")
 
         expect(response).to have_gitlab_http_status(401)
       end
@@ -120,7 +153,7 @@ describe API::V3::Runners do
       context 'when runner have one associated projects' do
         it "does not disable project's runner" do
           expect do
-            delete v3_api("/projects/#{project.id}/runners/#{specific_runner.id}", user)
+            delete v3_api("/projects/#{project.id}/runners/#{project_runner.id}", user)
           end.to change { project.runners.count }.by(0)
           expect(response).to have_gitlab_http_status(403)
         end
@@ -135,7 +168,7 @@ describe API::V3::Runners do
 
     context 'authorized user without permissions' do
       it "does not disable project's runner" do
-        delete v3_api("/projects/#{project.id}/runners/#{specific_runner.id}", user2)
+        delete v3_api("/projects/#{project.id}/runners/#{project_runner.id}", user2)
 
         expect(response).to have_gitlab_http_status(403)
       end
@@ -143,7 +176,7 @@ describe API::V3::Runners do
 
     context 'unauthorized user' do
       it "does not disable project's runner" do
-        delete v3_api("/projects/#{project.id}/runners/#{specific_runner.id}")
+        delete v3_api("/projects/#{project.id}/runners/#{project_runner.id}")
 
         expect(response).to have_gitlab_http_status(401)
       end