feat(telegram-bot): add local STT support and Prometheus metrics

- Fix telegram_user_id column type (integer -> bigint) for large user IDs
- Add local STT support via mana-stt service (Whisper MLX + Voxtral)
- Add STT provider config (local/openai) with fallback support
- Add Grafana dashboard for mana-stt service metrics
- Add ollama-metrics-proxy for LLM metrics collection
- Add Grafana dashboard for Ollama LLM metrics

Services added/updated:
- telegram-project-doc-bot: local STT integration
- mana-stt: Grafana dashboard
- ollama-metrics-proxy: new service for Ollama metrics

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Till-JS 2026-01-27 16:51:09 +01:00
parent 876fd43a1c
commit 6402f287e8
6 changed files with 1433 additions and 12 deletions

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{
"options": {
"0": { "color": "red", "text": "DOWN" },
"1": { "color": "green", "text": "UP" }
},
"type": "value"
}
],
"thresholds": {
"mode": "absolute",
"steps": [
{ "color": "red", "value": null },
{ "color": "green", "value": 1 }
]
}
}
},
"gridPos": { "h": 4, "w": 3, "x": 0, "y": 1 },
"id": 1,
"options": {
"colorMode": "background",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"textMode": "auto"
},
"targets": [{ "expr": "up{job=\"ollama\"}", "refId": "A" }],
"title": "Proxy Status",
"type": "stat"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"mappings": [],
"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }] },
"unit": "short"
}
},
"gridPos": { "h": 4, "w": 3, "x": 3, "y": 1 },
"id": 2,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"textMode": "auto"
},
"targets": [{ "expr": "sum(ollama_requests_total{status=\"success\"})", "refId": "A" }],
"title": "Total Requests",
"type": "stat"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"mappings": [],
"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }] },
"unit": "short"
}
},
"gridPos": { "h": 4, "w": 3, "x": 6, "y": 1 },
"id": 3,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"textMode": "auto"
},
"targets": [{ "expr": "sum(ollama_tokens_generated_total)", "refId": "A" }],
"title": "Total Tokens Generated",
"type": "stat"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"mappings": [],
"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }] },
"unit": "short"
}
},
"gridPos": { "h": 4, "w": 3, "x": 9, "y": 1 },
"id": 4,
"options": {
"colorMode": "value",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"textMode": "auto"
},
"targets": [{ "expr": "sum(ollama_prompt_tokens_total)", "refId": "A" }],
"title": "Total Prompt Tokens",
"type": "stat"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "thresholds" },
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{ "color": "green", "value": null },
{ "color": "yellow", "value": 1 },
{ "color": "red", "value": 3 }
]
},
"unit": "short"
}
},
"gridPos": { "h": 4, "w": 3, "x": 12, "y": 1 },
"id": 5,
"options": {
"colorMode": "background",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"textMode": "auto"
},
"targets": [{ "expr": "sum(ollama_active_requests)", "refId": "A" }],
"title": "Active Requests",
"type": "stat"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "thresholds" },
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{ "color": "green", "value": null },
{ "color": "red", "value": 1 }
]
},
"unit": "short"
}
},
"gridPos": { "h": 4, "w": 3, "x": 15, "y": 1 },
"id": 6,
"options": {
"colorMode": "background",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"textMode": "auto"
},
"targets": [{ "expr": "sum(ollama_requests_total{status=\"error\"})", "refId": "A" }],
"title": "Total Errors",
"type": "stat"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"mappings": [],
"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }] },
"unit": "s"
}
},
"gridPos": { "h": 4, "w": 3, "x": 18, "y": 1 },
"id": 7,
"options": {
"colorMode": "value",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"textMode": "auto"
},
"targets": [
{
"expr": "histogram_quantile(0.50, sum(rate(ollama_generation_duration_seconds_bucket[5m])) by (le))",
"refId": "A"
}
],
"title": "Median Generation Time",
"type": "stat"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"mappings": [],
"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }] },
"unit": "s"
}
},
"gridPos": { "h": 4, "w": 3, "x": 21, "y": 1 },
"id": 8,
"options": {
"colorMode": "value",
"graphMode": "none",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"textMode": "auto"
},
"targets": [
{
"expr": "histogram_quantile(0.50, sum(rate(ollama_time_to_first_token_seconds_bucket[5m])) by (le))",
"refId": "A"
}
],
"title": "Median TTFT",
"type": "stat"
},
{
"collapsed": false,
"gridPos": { "h": 1, "w": 24, "x": 0, "y": 5 },
"id": 101,
"panels": [],
"title": "Performance",
"type": "row"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 20,
"gradientMode": "none",
"hideFrom": { "legend": false, "tooltip": false, "viz": false },
"insertNulls": false,
"lineInterpolation": "smooth",
"lineWidth": 2,
"pointSize": 5,
"scaleDistribution": { "type": "linear" },
"showPoints": "auto",
"spanNulls": false,
"stacking": { "group": "A", "mode": "none" },
"thresholdsStyle": { "mode": "off" }
},
"mappings": [],
"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }] },
"unit": "s"
}
},
"gridPos": { "h": 8, "w": 12, "x": 0, "y": 6 },
"id": 10,
"options": {
"legend": {
"calcs": ["mean", "max"],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": { "mode": "multi", "sort": "desc" }
},
"targets": [
{
"expr": "histogram_quantile(0.50, sum(rate(ollama_generation_duration_seconds_bucket[5m])) by (le, model))",
"legendFormat": "{{model}} p50",
"refId": "A"
},
{
"expr": "histogram_quantile(0.95, sum(rate(ollama_generation_duration_seconds_bucket[5m])) by (le, model))",
"legendFormat": "{{model}} p95",
"refId": "B"
}
],
"title": "Generation Duration by Model (p50 / p95)",
"type": "timeseries"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 20,
"gradientMode": "none",
"hideFrom": { "legend": false, "tooltip": false, "viz": false },
"insertNulls": false,
"lineInterpolation": "smooth",
"lineWidth": 2,
"pointSize": 5,
"scaleDistribution": { "type": "linear" },
"showPoints": "auto",
"spanNulls": false,
"stacking": { "group": "A", "mode": "none" },
"thresholdsStyle": { "mode": "off" }
},
"mappings": [],
"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }] },
"unit": "s"
}
},
"gridPos": { "h": 8, "w": 12, "x": 12, "y": 6 },
"id": 11,
"options": {
"legend": {
"calcs": ["mean", "max"],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": { "mode": "multi", "sort": "desc" }
},
"targets": [
{
"expr": "histogram_quantile(0.50, sum(rate(ollama_time_to_first_token_seconds_bucket[5m])) by (le, model))",
"legendFormat": "{{model}} p50",
"refId": "A"
},
{
"expr": "histogram_quantile(0.95, sum(rate(ollama_time_to_first_token_seconds_bucket[5m])) by (le, model))",
"legendFormat": "{{model}} p95",
"refId": "B"
}
],
"title": "Time to First Token by Model (p50 / p95)",
"type": "timeseries"
},
{
"collapsed": false,
"gridPos": { "h": 1, "w": 24, "x": 0, "y": 14 },
"id": 102,
"panels": [],
"title": "Token Usage",
"type": "row"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 30,
"gradientMode": "none",
"hideFrom": { "legend": false, "tooltip": false, "viz": false },
"insertNulls": false,
"lineInterpolation": "smooth",
"lineWidth": 2,
"pointSize": 5,
"scaleDistribution": { "type": "linear" },
"showPoints": "auto",
"spanNulls": false,
"stacking": { "group": "A", "mode": "normal" },
"thresholdsStyle": { "mode": "off" }
},
"mappings": [],
"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }] },
"unit": "short"
}
},
"gridPos": { "h": 8, "w": 12, "x": 0, "y": 15 },
"id": 12,
"options": {
"legend": {
"calcs": ["sum"],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": { "mode": "multi", "sort": "desc" }
},
"targets": [
{
"expr": "sum(rate(ollama_tokens_generated_total[5m])) by (model)",
"legendFormat": "{{model}}",
"refId": "A"
}
],
"title": "Tokens Generated per Second by Model",
"type": "timeseries"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"custom": {
"axisBorderShow": false,
"axisCenteredZero": false,
"axisColorMode": "text",
"axisLabel": "",
"axisPlacement": "auto",
"barAlignment": 0,
"drawStyle": "line",
"fillOpacity": 30,
"gradientMode": "none",
"hideFrom": { "legend": false, "tooltip": false, "viz": false },
"insertNulls": false,
"lineInterpolation": "smooth",
"lineWidth": 2,
"pointSize": 5,
"scaleDistribution": { "type": "linear" },
"showPoints": "auto",
"spanNulls": false,
"stacking": { "group": "A", "mode": "normal" },
"thresholdsStyle": { "mode": "off" }
},
"mappings": [],
"thresholds": { "mode": "absolute", "steps": [{ "color": "green", "value": null }] },
"unit": "reqps"
}
},
"gridPos": { "h": 8, "w": 12, "x": 12, "y": 15 },
"id": 13,
"options": {
"legend": {
"calcs": ["mean", "sum"],
"displayMode": "table",
"placement": "bottom",
"showLegend": true
},
"tooltip": { "mode": "multi", "sort": "desc" }
},
"targets": [
{
"expr": "sum(rate(ollama_requests_total{status=\"success\"}[5m])) by (model)",
"legendFormat": "{{model}}",
"refId": "A"
}
],
"title": "Requests per Second by Model",
"type": "timeseries"
},
{
"collapsed": false,
"gridPos": { "h": 1, "w": 24, "x": 0, "y": 23 },
"id": 103,
"panels": [],
"title": "Model Distribution",
"type": "row"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"custom": { "hideFrom": { "legend": false, "tooltip": false, "viz": false } },
"mappings": []
}
},
"gridPos": { "h": 8, "w": 8, "x": 0, "y": 24 },
"id": 14,
"options": {
"legend": { "displayMode": "list", "placement": "right", "showLegend": true },
"pieType": "pie",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"tooltip": { "mode": "single", "sort": "none" }
},
"targets": [
{
"expr": "sum(ollama_requests_total{status=\"success\"}) by (model)",
"legendFormat": "{{model}}",
"refId": "A"
}
],
"title": "Requests by Model",
"type": "piechart"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"custom": { "hideFrom": { "legend": false, "tooltip": false, "viz": false } },
"mappings": []
}
},
"gridPos": { "h": 8, "w": 8, "x": 8, "y": 24 },
"id": 15,
"options": {
"legend": { "displayMode": "list", "placement": "right", "showLegend": true },
"pieType": "pie",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"tooltip": { "mode": "single", "sort": "none" }
},
"targets": [
{
"expr": "sum(ollama_tokens_generated_total) by (model)",
"legendFormat": "{{model}}",
"refId": "A"
}
],
"title": "Tokens by Model",
"type": "piechart"
},
{
"datasource": { "type": "prometheus", "uid": "${datasource}" },
"fieldConfig": {
"defaults": {
"color": { "mode": "palette-classic" },
"custom": { "hideFrom": { "legend": false, "tooltip": false, "viz": false } },
"mappings": []
}
},
"gridPos": { "h": 8, "w": 8, "x": 16, "y": 24 },
"id": 16,
"options": {
"legend": { "displayMode": "list", "placement": "right", "showLegend": true },
"pieType": "pie",
"reduceOptions": { "calcs": ["lastNotNull"], "fields": "", "values": false },
"tooltip": { "mode": "single", "sort": "none" }
},
"targets": [
{
"expr": "sum(ollama_requests_total{status=\"success\"}) by (endpoint)",
"legendFormat": "{{endpoint}}",
"refId": "A"
}
],
"title": "Requests by Endpoint",
"type": "piechart"
}
],
"refresh": "30s",
"schemaVersion": 39,
"tags": ["manacore", "ollama", "llm", "ai"],
"templating": {
"list": [
{
"current": { "selected": false, "text": "Prometheus", "value": "Prometheus" },
"hide": 0,
"includeAll": false,
"multi": false,
"name": "datasource",
"options": [],
"query": "prometheus",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"type": "datasource"
}
]
},
"time": { "from": "now-1h", "to": "now" },
"timepicker": {},
"timezone": "browser",
"title": "Ollama LLM Service",
"uid": "ollama-dashboard",
"version": 1,
"weekStart": "monday"
}

View file

@ -15,10 +15,15 @@ S3_ACCESS_KEY=minioadmin
S3_SECRET_KEY=minioadmin
S3_BUCKET=projectdoc-storage
# AI - Transcription (OpenAI Whisper)
# AI - Transcription (STT)
STT_PROVIDER=local # local | openai
STT_LOCAL_URL=http://localhost:3020 # mana-stt service URL
STT_MODEL=whisper # whisper | voxtral
# OpenAI (optional fallback for STT, required if STT_PROVIDER=openai)
OPENAI_API_KEY=sk-your-openai-key
# AI - Generation
LLM_PROVIDER=ollama # ollama | openai
OLLAMA_URL=http://localhost:11434
OLLAMA_URL=http://localhost:11435 # Use :11435 for metrics proxy, :11434 for direct
OLLAMA_MODEL=gemma3:4b

View file

@ -20,6 +20,11 @@ export default () => ({
openai: {
apiKey: process.env.OPENAI_API_KEY,
},
stt: {
provider: process.env.STT_PROVIDER || 'local', // 'local' or 'openai'
localUrl: process.env.STT_LOCAL_URL || 'http://localhost:3020',
model: process.env.STT_MODEL || 'whisper', // 'whisper' or 'voxtral'
},
llm: {
provider: process.env.LLM_PROVIDER || 'ollama',
ollama: {

View file

@ -1,10 +1,19 @@
import { pgTable, uuid, text, timestamp, integer, jsonb, boolean } from 'drizzle-orm/pg-core';
import {
pgTable,
uuid,
text,
timestamp,
integer,
bigint,
jsonb,
boolean,
} from 'drizzle-orm/pg-core';
import { relations } from 'drizzle-orm';
// Projects table
export const projects = pgTable('projects', {
id: uuid('id').primaryKey().defaultRandom(),
telegramUserId: integer('telegram_user_id').notNull(),
telegramUserId: bigint('telegram_user_id', { mode: 'number' }).notNull(),
name: text('name').notNull(),
description: text('description'),
status: text('status').default('active').notNull(), // active, archived, completed

View file

@ -2,48 +2,115 @@ import { Injectable, Logger } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import OpenAI from 'openai';
interface LocalSTTResponse {
text: string;
language?: string;
model: string;
}
@Injectable()
export class TranscriptionService {
private readonly logger = new Logger(TranscriptionService.name);
private readonly openai: OpenAI | null;
private readonly provider: 'local' | 'openai';
private readonly localUrl: string;
private readonly sttModel: string;
constructor(private configService: ConfigService) {
this.provider = this.configService.get<string>('stt.provider', 'local') as 'local' | 'openai';
this.localUrl = this.configService.get<string>('stt.localUrl', 'http://localhost:3020');
this.sttModel = this.configService.get<string>('stt.model', 'whisper');
const apiKey = this.configService.get<string>('openai.apiKey');
if (apiKey) {
this.openai = new OpenAI({ apiKey });
this.logger.log('OpenAI Whisper initialized');
this.logger.log('OpenAI Whisper available as fallback');
} else {
this.openai = null;
this.logger.warn('OpenAI API key not configured - transcription disabled');
}
this.logger.log(
`STT Provider: ${this.provider}, URL: ${this.localUrl}, Model: ${this.sttModel}`
);
}
async transcribe(audioBuffer: Buffer, filename = 'audio.ogg'): Promise<string> {
// Try local STT first if configured
if (this.provider === 'local') {
try {
return await this.transcribeLocal(audioBuffer, filename);
} catch (error) {
this.logger.warn(`Local STT failed, trying OpenAI fallback: ${error}`);
if (this.openai) {
return await this.transcribeOpenAI(audioBuffer, filename);
}
throw error;
}
}
// Use OpenAI
if (this.openai) {
return await this.transcribeOpenAI(audioBuffer, filename);
}
throw new Error('No STT provider available');
}
private async transcribeLocal(audioBuffer: Buffer, filename: string): Promise<string> {
const endpoint = this.sttModel === 'voxtral' ? '/transcribe/voxtral' : '/transcribe';
const url = `${this.localUrl}${endpoint}`;
this.logger.debug(`Calling local STT: ${url}`);
const formData = new FormData();
const uint8Array = new Uint8Array(audioBuffer);
const blob = new Blob([uint8Array], { type: 'audio/ogg' });
formData.append('file', blob, filename);
formData.append('language', 'de');
const response = await fetch(url, {
method: 'POST',
body: formData,
});
if (!response.ok) {
const error = await response.text();
throw new Error(`Local STT error: ${response.status} - ${error}`);
}
const result: LocalSTTResponse = await response.json();
this.logger.debug(`Local STT result: ${result.text.length} chars, model: ${result.model}`);
return result.text;
}
private async transcribeOpenAI(audioBuffer: Buffer, filename: string): Promise<string> {
if (!this.openai) {
throw new Error('Transcription not available - OpenAI API key not configured');
throw new Error('OpenAI not configured');
}
try {
// Create a File object from the buffer using Uint8Array
const uint8Array = new Uint8Array(audioBuffer);
const file = new File([uint8Array], filename, { type: 'audio/ogg' });
const response = await this.openai.audio.transcriptions.create({
file,
model: 'whisper-1',
language: 'de', // Default to German, could be made configurable
language: 'de',
});
this.logger.debug(`Transcribed ${audioBuffer.length} bytes -> ${response.text.length} chars`);
this.logger.debug(
`OpenAI transcribed ${audioBuffer.length} bytes -> ${response.text.length} chars`
);
return response.text;
} catch (error) {
this.logger.error('Transcription failed:', error);
this.logger.error('OpenAI transcription failed:', error);
throw new Error('Transkription fehlgeschlagen');
}
}
isAvailable(): boolean {
return this.openai !== null;
return this.provider === 'local' || this.openai !== null;
}
}