Support 'active' setting on Runner Registration API endpoint

lib/api/runner.rb

@@ -11,13 +11,14 @@ module API
         requires :token, type: String, desc: 'Registration token'
         optional :description, type: String, desc: %q(Runner's description)
         optional :info, type: Hash, desc: %q(Runner's metadata)
+        optional :active, type: Boolean, desc: 'Should Runner be active'
         optional :locked, type: Boolean, desc: 'Should Runner be locked for current project'
         optional :run_untagged, type: Boolean, desc: 'Should Runner handle untagged jobs'
         optional :tag_list, type: Array[String], desc: %q(List of Runner's tags)
         optional :maximum_timeout, type: Integer, desc: 'Maximum timeout set when this Runner will handle the job'
       end
       post '/' do
-        attributes = attributes_for_keys([:description, :locked, :run_untagged, :tag_list, :maximum_timeout])
+        attributes = attributes_for_keys([:description, :active, :locked, :run_untagged, :tag_list, :maximum_timeout])
           .merge(get_runner_details_from_request)
         runner =

spec/requests/api/runner_spec.rb

@@ -41,6 +41,7 @@ describe API::Runner, :clean_gitlab_redis_shared_state do
           expect(json_response['id']).to eq(runner.id)
           expect(json_response['token']).to eq(runner.token)
           expect(runner.run_untagged).to be true
+          expect(runner.active).to be true
           expect(runner.token).not_to eq(registration_token)
           expect(runner).to be_instance_type
         end
@@ -129,6 +130,28 @@ describe API::Runner, :clean_gitlab_redis_shared_state do
         end
       end
+      context 'when option for activating a Runner is provided' do
+        context 'when active is set to true' do
+          it 'creates runner' do
+            post api('/runners'), token: registration_token,
+                                  active: true
+
+            expect(response).to have_gitlab_http_status 201
+            expect(Ci::Runner.first.active).to be true
+          end
+        end
+
+        context 'when active is set to false' do
+          it 'creates runner' do
+            post api('/runners'), token: registration_token,
+                                  active: false
+
+            expect(response).to have_gitlab_http_status 201
+            expect(Ci::Runner.first.active).to be false
+          end
+        end
+      end
+
       context 'when maximum job timeout is specified' do
         it 'creates runner' do
           post api('/runners'), token: registration_token,