Refactor the Sentry plugin to use the proxy backend instead of a cust…

…om backend

.changeset/chatty-pens-bathe.md

@@ -0,0 +1,65 @@
+---
+'@backstage/plugin-sentry': minor
+'@backstage/plugin-sentry-backend': minor
+---
+
+The plugin uses the `proxy-backend` instead of a custom `sentry-backend`.
+It requires a proxy configuration:
+
+`app-config.yaml`:
+
+```yaml
+proxy:
+  '/sentry/api':
+    target: https://sentry.io/api/
+    allowedMethods: ['GET']
+    headers:
+      Authorization:
+        $env: SENTRY_TOKEN # export SENTRY_TOKEN="Bearer <your-sentry-token>"
+```
+
+The `MockApiBackend` is no longer configured by the `NODE_ENV` variable.
+Instead, the mock backend can be used with an api-override:
+
+`packages/app/src/apis.ts`:
+
+```ts
+import { createApiFactory } from '@backstage/core';
+import { MockSentryApi, sentryApiRef } from '@backstage/plugin-sentry';
+
+export const apis = [
+  // ...
+
+  createApiFactory(sentryApiRef, new MockSentryApi()),
+];
+```
+
+If you already use the Sentry backend, you must remove it from the backend:
+
+Delete `packages/backend/src/plugins/sentry.ts`.
+
+```diff
+# packages/backend/package.json
+
+...
+    "@backstage/plugin-scaffolder-backend": "^0.3.2",
+-   "@backstage/plugin-sentry-backend": "^0.1.3",
+    "@backstage/plugin-techdocs-backend": "^0.3.0",
+...
+```
+
+```diff
+// packages/backend/src/index.html
+
+  const apiRouter = Router();
+  apiRouter.use('/catalog', await catalog(catalogEnv));
+  apiRouter.use('/rollbar', await rollbar(rollbarEnv));
+  apiRouter.use('/scaffolder', await scaffolder(scaffolderEnv));
+- apiRouter.use('/sentry', await sentry(sentryEnv));
+  apiRouter.use('/auth', await auth(authEnv));
+  apiRouter.use('/techdocs', await techdocs(techdocsEnv));
+  apiRouter.use('/kubernetes', await kubernetes(kubernetesEnv));
+  apiRouter.use('/proxy', await proxy(proxyEnv));
+  apiRouter.use('/graphql', await graphql(graphqlEnv));
+  apiRouter.use(notFoundHandler());
+```

app-config.yaml

@@ -52,6 +52,13 @@ proxy:
       Authorization:
         $env: BUILDKITE_TOKEN
 
+  '/sentry/api':
+    target: https://sentry.io/api/
+    allowedMethods: ['GET']
+    headers:
+      Authorization:
+        $env: SENTRY_TOKEN
+
 organization:
   name: My Company
 

packages/backend/package.json

@@ -29,7 +29,6 @@
     "@backstage/plugin-proxy-backend": "^0.2.2",
     "@backstage/plugin-rollbar-backend": "^0.1.4",
     "@backstage/plugin-scaffolder-backend": "^0.3.3",
-    "@backstage/plugin-sentry-backend": "^0.1.3",
     "@backstage/plugin-techdocs-backend": "^0.3.1",
     "@gitbeaker/node": "^25.2.0",
     "@octokit/rest": "^18.0.0",

packages/backend/src/index.ts

@@ -25,13 +25,13 @@
 import Router from 'express-promise-router';
 import {
   createServiceBuilder,
-  loadBackendConfig,
   getRootLogger,
-  useHotMemoize,
+  loadBackendConfig,
   notFoundHandler,
   SingleConnectionDatabaseManager,
   SingleHostDiscovery,
   UrlReaders,
+  useHotMemoize,
 } from '@backstage/backend-common';
 import { Config } from '@backstage/config';
 import healthcheck from './plugins/healthcheck';
@@ -40,7 +40,6 @@ import catalog from './plugins/catalog';
 import kubernetes from './plugins/kubernetes';
 import rollbar from './plugins/rollbar';
 import scaffolder from './plugins/scaffolder';
-import sentry from './plugins/sentry';
 import proxy from './plugins/proxy';
 import techdocs from './plugins/techdocs';
 import graphql from './plugins/graphql';
@@ -76,7 +75,6 @@ async function main() {
   const authEnv = useHotMemoize(module, () => createEnv('auth'));
   const proxyEnv = useHotMemoize(module, () => createEnv('proxy'));
   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'));
@@ -86,7 +84,6 @@ async function main() {
   apiRouter.use('/catalog', await catalog(catalogEnv));
   apiRouter.use('/rollbar', await rollbar(rollbarEnv));
   apiRouter.use('/scaffolder', await scaffolder(scaffolderEnv));
-  apiRouter.use('/sentry', await sentry(sentryEnv));
   apiRouter.use('/auth', await auth(authEnv));
   apiRouter.use('/techdocs', await techdocs(techdocsEnv));
   apiRouter.use('/kubernetes', await kubernetes(kubernetesEnv));

plugins/sentry-backend/README.md

@@ -1,3 +1,5 @@
 # sentry-backend
 
-Simple plugin forwarding requests to [Sentry](https://sentry.io) API.
+> DEPRECATED
+
+Please use the [proxy-backend](../proxy-backend) instead. See [CHANGELOG.md](./CHANGELOG.md).

plugins/sentry-backend/src/index.ts

@@ -14,4 +14,13 @@
  * limitations under the License.
  */
 
-export * from './service/router';
+import { Router } from 'express';
+import { Logger } from 'winston';
+
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+export const createRouter = async (_: Logger): Promise<Router> => Router();
+
+throw new Error(
+  'The sentry-backend has been deprecated and replaced by the proxy-backend. See the ' +
+    'changelog on how to migrate to the proxy backend: https://github.com/backstage/backstage/blob/master/plugins/sentry/CHANGELOG.md.',
+);