refactor(server): config system (#11081)

packages/backend/server/src/base/metrics/index.ts

@@ -1,54 +1,14 @@
 import './config';
 
-import {
-  Global,
-  Module,
-  OnModuleDestroy,
-  OnModuleInit,
-  Provider,
-} from '@nestjs/common';
-import { ModuleRef } from '@nestjs/core';
-import { NodeSDK } from '@opentelemetry/sdk-node';
+import { Global, Module } from '@nestjs/common';
 
-import { Config } from '../config';
-import {
-  LocalOpentelemetryFactory,
-  OpentelemetryFactory,
-  registerCustomMetrics,
-} from './opentelemetry';
-
-const factorProvider: Provider = {
-  provide: OpentelemetryFactory,
-  useFactory: (config: Config) => {
-    return config.metrics.enabled ? new LocalOpentelemetryFactory() : null;
-  },
-  inject: [Config],
-};
+import { OpentelemetryFactory } from './opentelemetry';
 
 @Global()
 @Module({
-  providers: [factorProvider],
-  exports: [factorProvider],
+  providers: [OpentelemetryFactory],
 })
-export class MetricsModule implements OnModuleInit, OnModuleDestroy {
-  private sdk: NodeSDK | null = null;
-  constructor(private readonly ref: ModuleRef) {}
-
-  onModuleInit() {
-    const factor = this.ref.get(OpentelemetryFactory, { strict: false });
-    if (factor) {
-      this.sdk = factor.create();
-      this.sdk.start();
-      registerCustomMetrics();
-    }
-  }
-
-  async onModuleDestroy() {
-    if (this.sdk) {
-      await this.sdk.shutdown();
-    }
-  }
-}
+export class MetricsModule {}
 
 export * from './metrics';
 export * from './utils';