3scale

Synchronize 3scale content into the Backstage catalog.

NPM

3scale Backstage provider

The 3scale Backstage provider plugin synchronizes the 3scale content into the Backstage catalog.

For administrators​

Installation​

Run the following command to install the 3scale Backstage provider plugin:

yarn workspace backend add @janus-idp/backstage-plugin-3scale-backend

Configuration​

3scale Backstage provider allows configuration of one or multiple providers using the app-config.yaml configuration file of Backstage.

Legacy Backend Procedure​

1. Use a threeScaleApiEntity marker to start configuring the app-config.yaml file of Backstage:

   app-config.yaml

   catalog:
     providers:
       threeScaleApiEntity:
         dev:
           baseUrl: https://<TENANT>-admin.3scale.net
           accessToken: <ACCESS_TOKEN>
           schedule: # optional; same options as in TaskScheduleDefinition
             # supports cron, ISO duration, "human duration" as used in code
             frequency: { minutes: 30 }
             # supports ISO duration, "human duration" as used in code
             timeout: { minutes: 3 }
   

2. If installing into the legacy backend, configure the scheduler for the entity provider using one of the following methods:

   • Method 1: If the scheduler is configured inside the app-config.yaml using the schedule config key mentioned previously, add the following code to packages/backend/src/plugins/catalog.ts file:

     packages/backend/src/plugins/catalog.ts

     import { ThreeScaleApiEntityProvider } from '@janus-idp/backstage-plugin-3scale-backend';
     
     export default async function createPlugin(
       env: PluginEnvironment,
     ): Promise<Router> {
       const builder = await CatalogBuilder.create(env);
     
       /* ... other processors and/or providers ... */
       builder.addEntityProvider(
         ThreeScaleApiEntityProvider.fromConfig(env.config, {
           logger: env.logger,
           scheduler: env.scheduler,
         }),
       );
     
       const { processingEngine, router } = await builder.build();
       await processingEngine.start();
       return router;
     }
     

     ---

     NOTE

     If you have made any changes to the schedule in the app-config.yaml file, then restart to apply the changes.

     ---

   • Method 2: Add a schedule directly inside the packages/backend/src/plugins/catalog.ts file as follows:

     packages/backend/src/plugins/catalog.ts

     import { ThreeScaleApiEntityProvider } from '@janus-idp/backstage-plugin-3scale-backend';
     
     export default async function createPlugin(
       env: PluginEnvironment,
     ): Promise<Router> {
       const builder = await CatalogBuilder.create(env);
     
       /* ... other processors and/or providers ... */
       builder.addEntityProvider(
         ThreeScaleApiEntityProvider.fromConfig(env.config, {
           logger: env.logger,
           schedule: env.scheduler.createScheduledTaskRunner({
             frequency: { minutes: 30 },
             timeout: { minutes: 3 },
           }),
         }),
       );
     
       const { processingEngine, router } = await builder.build();
       await processingEngine.start();
       return router;
     }
     

   ---

   NOTE

   If both the schedule (hard-coded schedule) and scheduler (app-config.yaml schedule) option are provided in the packages/backend/src/plugins/catalog.ts, the scheduler option takes precedence. However, if the schedule inside the app-config.yaml file is not configured, then the schedule option is used.

   ---

New Backend Procedure​

1. If installing into the new backend system, make the same configurations to the app=config.yaml as in the Legacy Backend Installation Procedure. Make sure to configure the schedule inside the app-config.yaml file. The default schedule is a frequency of 30 minutes and a timeout of 3 minutes.

2. Add the following code to the packages/backend/src/index.ts file:

   packages/backend/src/index.ts

   const backend = createBackend();
   
   backend.add(import('@janus-idp/backstage-plugin-3scale-backend/alpha'));
   
   backend.start();
   

Troubleshooting​

When you start your Backstage application, you can see some log lines as follows:

[1] 2023-02-13T15:26:09.356Z catalog info Discovered ApiEntity API type=plugin target=ThreeScaleApiEntityProvider:dev
[1] 2023-02-13T15:26:09.423Z catalog info Discovered ApiEntity Red Hat Event (DEV, v1.2.0) type=plugin target=ThreeScaleApiEntityProvider:dev
[1] 2023-02-13T15:26:09.620Z catalog info Discovered ApiEntity Red Hat Event (TEST, v1.1.0) type=plugin target=ThreeScaleApiEntityProvider:dev
[1] 2023-02-13T15:26:09.819Z catalog info Discovered ApiEntity Red Hat Event (PROD, v1.1.0) type=plugin target=ThreeScaleApiEntityProvider:dev
[1] 2023-02-13T15:26:09.819Z catalog info Applying the mutation with 3 entities type=plugin target=ThreeScaleApiEntityProvider:dev