docs(kiali): update development doc for alpha backend(#1720)

docs(kiali): update development doc for alpha backend

plugins/kiali/DEVELOPMENT.md

@@ -44,48 +44,13 @@
    );
    ```
 
-3. Create a file called `kiali.ts` inside `packages/backend/src/plugins/` and add the following:
-
-   ```ts title="packages/backend/src/plugins/kiali.tsx"
-   /* highlight-add-start */
-   import { Router } from 'express';
-
-   // ..
-   import { createRouter } from '@janus-idp/backstage-plugin-kiali-backend';
-
-   import { PluginEnvironment } from '../types';
-
-   export default async function createPlugin(
-     env: PluginEnvironment,
-   ): Promise<Router> {
-     return await createRouter({
-       logger: env.logger,
-       config: env.config,
-     });
-   }
-   // ..
-   /* highlight-add-end */
-   ```
-
-4. import the plugin to `packages/backend/src/index.ts`. There are three lines of code you'll need to add, and they should be added near similar code in your existing Backstage backend.
+3. import the plugin to `packages/backend/src/index.ts`.
 
    ```typescript title="packages/backend/src/index.ts"
-   // ..
-   /* highlight-add-next-line */
-   import kiali from './plugins/kiali';
-
-   async function main() {
-     // ...
-     /* highlight-add-next-line */
-     const kialiEnv = useHotMemoize(module, () => createEnv('kiali'));
-     // ...
-     /* highlight-add-next-line */
-     apiRouter.use('/kiali', await kiali(kialiEnv));
-     // ...
-   }
+   backend.add(import('@janus-idp/backstage-plugin-kiali-backend/alpha'));
    ```
 
-5. Configure you `app-config.local.yaml` with kiali configuration
+4. Configure you `app-config.local.yaml` with kiali configuration
 
    ```yaml
    catalog:
@@ -107,7 +72,7 @@
          # highlight-add-end
    ```
 
-6. Add catalog
+5. Add catalog
 
    Add to locations in `app-config.local.yaml`
 
@@ -118,6 +83,16 @@
        target: ../../plugins/kiali/catalog-demo.yaml
    ```
 
+6. Disable backend authentication for development (If required)
+
+   Add the auth config to backend in `app-config.local.yaml`
+
+   ```yaml
+   backend:
+     auth:
+       dangerouslyDisableDefaultAuthPolicy: true
+   ```
+
 7. Run `yarn start:backstage` from the project root.
 8. After create a new component, the Kiali tab should be enabled: