feat(config): add telemetry and metrics configuration options

- Introduce new environment variables for telemetry and Prometheus metrics in .env.example
- Create example configuration files for Prometheus and Grafana dashboards
- Update main application to utilize new configuration settings for Sentry, audio converter, and proxy
- Enhance channel services to support audio conversion API integration
- Implement middleware for metrics IP whitelisting and basic authentication in routes

src/api/integrations/channel/evolution/evolution.channel.service.ts

@@ -13,7 +13,7 @@ import { chatbotController } from '@api/server.module';
 import { CacheService } from '@api/services/cache.service';
 import { ChannelStartupService } from '@api/services/channel.service';
 import { Events, wa } from '@api/types/wa.types';
-import { Chatwoot, ConfigService, Openai, S3 } from '@config/env.config';
+import { AudioConverter, Chatwoot, ConfigService, Openai, S3 } from '@config/env.config';
 import { BadRequestException, InternalServerErrorException } from '@exceptions';
 import { createJid } from '@utils/createJid';
 import axios from 'axios';
@@ -622,7 +622,8 @@ export class EvolutionStartupService extends ChannelStartupService {
     number = number.replace(/\D/g, '');
     const hash = `${number}-${new Date().getTime()}`;
 
-    if (process.env.API_AUDIO_CONVERTER) {
+    const audioConverterConfig = this.configService.get<AudioConverter>('AUDIO_CONVERTER');
+    if (audioConverterConfig.API_URL) {
       try {
         this.logger.verbose('Using audio converter API');
         const formData = new FormData();
@@ -640,10 +641,10 @@ export class EvolutionStartupService extends ChannelStartupService {
 
         formData.append('format', 'mp4');
 
-        const response = await axios.post(process.env.API_AUDIO_CONVERTER, formData, {
+        const response = await axios.post(audioConverterConfig.API_URL, formData, {
           headers: {
             ...formData.getHeaders(),
-            apikey: process.env.API_AUDIO_CONVERTER_KEY,
+            apikey: audioConverterConfig.API_KEY,
           },
         });
 

src/api/integrations/channel/meta/whatsapp.business.service.ts

@@ -20,7 +20,7 @@ import { chatbotController } from '@api/server.module';
 import { CacheService } from '@api/services/cache.service';
 import { ChannelStartupService } from '@api/services/channel.service';
 import { Events, wa } from '@api/types/wa.types';
-import { Chatwoot, ConfigService, Database, Openai, S3, WaBusiness } from '@config/env.config';
+import { AudioConverter, Chatwoot, ConfigService, Database, Openai, S3, WaBusiness } from '@config/env.config';
 import { BadRequestException, InternalServerErrorException } from '@exceptions';
 import { createJid } from '@utils/createJid';
 import { status } from '@utils/renderStatus';
@@ -1300,7 +1300,8 @@ export class BusinessStartupService extends ChannelStartupService {
     number = number.replace(/\D/g, '');
     const hash = `${number}-${new Date().getTime()}`;
 
-    if (process.env.API_AUDIO_CONVERTER) {
+    const audioConverterConfig = this.configService.get<AudioConverter>('AUDIO_CONVERTER');
+    if (audioConverterConfig.API_URL) {
       this.logger.verbose('Using audio converter API');
       const formData = new FormData();
 
@@ -1317,10 +1318,10 @@ export class BusinessStartupService extends ChannelStartupService {
 
       formData.append('format', 'mp3');
 
-      const response = await axios.post(process.env.API_AUDIO_CONVERTER, formData, {
+      const response = await axios.post(audioConverterConfig.API_URL, formData, {
         headers: {
           ...formData.getHeaders(),
-          apikey: process.env.API_AUDIO_CONVERTER_KEY,
+          apikey: audioConverterConfig.API_KEY,
         },
       });
 

src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts

@@ -62,6 +62,7 @@ import { ChannelStartupService } from '@api/services/channel.service';
 import { Events, MessageSubtype, TypeMediaMessage, wa } from '@api/types/wa.types';
 import { CacheEngine } from '@cache/cacheengine';
 import {
+  AudioConverter,
   CacheConf,
   Chatwoot,
   ConfigService,
@@ -2837,7 +2838,8 @@ export class BaileysStartupService extends ChannelStartupService {
   }
 
   public async processAudio(audio: string): Promise<Buffer> {
-    if (process.env.API_AUDIO_CONVERTER) {
+    const audioConverterConfig = this.configService.get<AudioConverter>('AUDIO_CONVERTER');
+    if (audioConverterConfig.API_URL) {
       this.logger.verbose('Using audio converter API');
       const formData = new FormData();
 
@@ -2847,8 +2849,8 @@ export class BaileysStartupService extends ChannelStartupService {
         formData.append('base64', audio);
       }
 
-      const { data } = await axios.post(process.env.API_AUDIO_CONVERTER, formData, {
-        headers: { ...formData.getHeaders(), apikey: process.env.API_AUDIO_CONVERTER_KEY },
+      const { data } = await axios.post(audioConverterConfig.API_URL, formData, {
+        headers: { ...formData.getHeaders(), apikey: audioConverterConfig.API_KEY },
       });
 
       if (!data.audio) {

src/api/integrations/event/websocket/websocket.controller.ts

@@ -31,7 +31,9 @@ export class WebsocketController extends EventController implements EventControl
           const params = new URLSearchParams(url.search);
 
           const { remoteAddress } = req.socket;
-          const isAllowedHost = (process.env.WEBSOCKET_ALLOWED_HOSTS || '127.0.0.1,::1,::ffff:127.0.0.1')
+          const websocketConfig = configService.get<Websocket>('WEBSOCKET');
+          const allowedHosts = websocketConfig.ALLOWED_HOSTS || '127.0.0.1,::1,::ffff:127.0.0.1';
+          const isAllowedHost = allowedHosts
             .split(',')
             .map((h) => h.trim())
             .includes(remoteAddress);

src/api/integrations/storage/s3/libs/minio.server.ts

@@ -26,7 +26,7 @@ const minioClient = (() => {
   }
 })();
 
-const bucketName = process.env.S3_BUCKET;
+const bucketName = BUCKET.BUCKET_NAME;
 
 const bucketExists = async () => {
   if (minioClient) {