Mob/techdocs end to end (#1736)

* Initial techdocs end to end heavily inspired by scaffolder

* added some tests and fixed linting

* fix(techdocs-backend): fix eslint

* fix(techdocs-backend): cleanup commented test

* Removed unused dependency

* fix(techdocs-backend): updated standalone server

* moved type dependency to devDependencies

* fix: updated dependencies and devDependencies.

* Update plugins/techdocs-backend/src/techdocs/stages/generate/types.ts

Co-authored-by: Emma Indal <emma.indahl@gmail.com>

Co-authored-by: Emma Indal <emmai@spotify.com>
Co-authored-by: ellinors <ellinors@spotify.com>
Co-authored-by: Emma Indal <emma.indahl@gmail.com>

packages/backend/src/plugins/techdocs.ts

@@ -14,9 +14,37 @@
  * limitations under the License.
  */
 
-import { createRouter } from '@backstage/plugin-techdocs-backend';
+import {
+  createRouter,
+  DirectoryPreparer,
+  Preparers,
+  Generators,
+  LocalPublish,
+  TechdocsGenerator
+} from '@backstage/plugin-techdocs-backend';
 import { PluginEnvironment } from '../types';
+import Docker from 'dockerode';
 
-export default async function createPlugin({ logger }: PluginEnvironment) {
-  return await createRouter({ logger });
+export default async function createPlugin({ logger, config }: PluginEnvironment) {
+  const generators = new Generators();
+  const techdocsGenerator = new TechdocsGenerator();
+  generators.register('techdocs', techdocsGenerator);
+
+  const directoryPreparer = new DirectoryPreparer();
+  const preparers = new Preparers();
+
+  preparers.register('dir', directoryPreparer);
+
+  const publisher = new LocalPublish();
+
+  const dockerClient = new Docker();
+
+  return await createRouter({
+    preparers,
+    generators,
+    publisher,
+    dockerClient,
+    logger,
+    config,
+  });
 }