Kubernetes plugins boilerplate (#2559)

* Kubernetes plugins boilerplate

* pr feedback; check for k8s annotation

packages/backend/package.json

@@ -26,6 +26,7 @@
     "@backstage/plugin-catalog-backend": "^0.1.1-alpha.22",
     "@backstage/plugin-graphql-backend": "^0.1.1-alpha.22",
     "@backstage/plugin-identity-backend": "^0.1.1-alpha.22",
+    "@backstage/plugin-kubernetes-backend": "^0.1.1-alpha.22",
     "@backstage/plugin-proxy-backend": "^0.1.1-alpha.22",
     "@backstage/plugin-rollbar-backend": "^0.1.1-alpha.22",
     "@backstage/plugin-scaffolder-backend": "^0.1.1-alpha.22",

packages/backend/src/index.ts

@@ -34,6 +34,7 @@ import healthcheck from './plugins/healthcheck';
 import auth from './plugins/auth';
 import catalog from './plugins/catalog';
 import identity from './plugins/identity';
+import kubernetes from './plugins/kubernetes';
 import rollbar from './plugins/rollbar';
 import scaffolder from './plugins/scaffolder';
 import sentry from './plugins/sentry';
@@ -73,6 +74,7 @@ async function main() {
   const rollbarEnv = useHotMemoize(module, () => createEnv('rollbar'));
   const sentryEnv = useHotMemoize(module, () => createEnv('sentry'));
   const techdocsEnv = useHotMemoize(module, () => createEnv('techdocs'));
+  const kubernetesEnv = useHotMemoize(module, () => createEnv('kubernetes'));
   const graphqlEnv = useHotMemoize(module, () => createEnv('graphql'));
   const appEnv = useHotMemoize(module, () => createEnv('app'));
 
@@ -86,6 +88,7 @@ async function main() {
     .addRouter('/auth', await auth(authEnv))
     .addRouter('/identity', await identity(identityEnv))
     .addRouter('/techdocs', await techdocs(techdocsEnv))
+    .addRouter('/kubernetes', await kubernetes(kubernetesEnv))
     .addRouter('/proxy', await proxy(proxyEnv, '/proxy'))
     .addRouter('/graphql', await graphql(graphqlEnv))
     .addRouter('', await app(appEnv));

packages/backend/src/plugins/kubernetes.ts

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2020 Spotify AB
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { createRouter } from '@backstage/plugin-kubernetes-backend';
+import { PluginEnvironment } from '../types';
+
+export default async function createPlugin({ logger }: PluginEnvironment) {
+  return await createRouter({ logger });
+}