Công thức metrics: máy chủ, hàng đợi, nghiệp vụ, Supabase

receivers:  hostmetrics:    collection_interval: 60s    scrapers:      cpu: {}      memory: {}      load: {}      disk: {}      filesystem: {}      network: {}processors:  memory_limiter:    check_interval: 1s    limit_percentage: 80    spike_limit_percentage: 20  resourcedetection:    detectors: [env, system]    system:      hostname_sources: [os]  resource:    attributes:      - key: service.name        value: ${env:BELVADOR_HOST_SERVICE}        action: upsert      - key: deployment.environment.name        value: ${env:BELVADOR_ENVIRONMENT}        action: upsert  batch: {}exporters:  otlphttp/belvador:    endpoint: ${env:BELVADOR_OTLP_ENDPOINT}    headers:      Authorization: Bearer ${env:BELVADOR_INGEST_KEY}    compression: gzip    retry_on_failure:      enabled: true    sending_queue:      enabled: trueservice:  pipelines:    metrics:      receivers: [hostmetrics]      processors: [memory_limiter, resourcedetection, resource, batch]      exporters: [otlphttp/belvador]

export BELVADOR_OTLP_ENDPOINT=https://ingest.belvador.dev/otlp/<project-id>export BELVADOR_INGEST_KEY=<your-ingest-key>export BELVADOR_HOST_SERVICE=web-1export BELVADOR_ENVIRONMENT=productionotelcol-contrib --config host-metrics.yaml

receivers:  hostmetrics:    collection_interval: 60s    scrapers:      cpu: {}      memory: {}      paging: {}      disk: {}      filesystem: {}      network: {}processors:  memory_limiter:    check_interval: 1s    limit_percentage: 80    spike_limit_percentage: 20  resourcedetection:    detectors: [env, system]    system:      hostname_sources: [os]  resource:    attributes:      - key: service.name        value: ${env:BELVADOR_HOST_SERVICE}        action: upsert      - key: deployment.environment.name        value: ${env:BELVADOR_ENVIRONMENT}        action: upsert  batch: {}exporters:  otlphttp/belvador:    endpoint: ${env:BELVADOR_OTLP_ENDPOINT}    headers:      Authorization: Bearer ${env:BELVADOR_INGEST_KEY}    compression: gzip    retry_on_failure:      enabled: true    sending_queue:      enabled: trueservice:  pipelines:    metrics:      receivers: [hostmetrics]      processors: [memory_limiter, resourcedetection, resource, batch]      exporters: [otlphttp/belvador]

# PowerShell as Administrator; otelcol-contrib.exe and host-metrics.yaml are in C:\otelcolNew-Service -Name otelcol -StartupType Automatic -BinaryPathName '"C:\otelcol\otelcol-contrib.exe" --config "C:\otelcol\host-metrics.yaml"'# The variables belong to this service only (not the whole machine) and apply without a reboot.Set-ItemProperty -Path HKLM:\SYSTEM\CurrentControlSet\Services\otelcol -Name Environment -Type MultiString -Value @(  "BELVADOR_OTLP_ENDPOINT=https://ingest.belvador.dev/otlp/<project-id>",  "BELVADOR_INGEST_KEY=<your-ingest-key>",  "BELVADOR_HOST_SERVICE=win-1",  "BELVADOR_ENVIRONMENT=production")Start-Service otelcol

import { metrics } from "@opentelemetry/api";const meter = metrics.getMeter("app");const attrs = { "messaging.system": "postgres", "messaging.destination.name": "emails" };// How many jobs wait, and how long the oldest one has waited.meter  .createObservableGauge("queue.depth", { unit: "{message}", description: "Jobs waiting" })  .addCallback(async (r) => r.observe(await queue.count("emails"), attrs));meter  .createObservableGauge("queue.oldest_age", { unit: "s", description: "Age of the oldest waiting job" })  .addCallback(async (r) => r.observe(await queue.oldestAgeSeconds("emails"), attrs));// A business signal: free connections in your own pool.meter  .createObservableGauge("app.pool.available", { unit: "{connection}" })  .addCallback((r) => r.observe(pool.idleCount, { "db.client.connection.pool.name": "main" }));// A counter you increment yourself; Belvador shows it as a rate.export const signups = meter.createCounter("app.signups", { unit: "{signup}" });// signups.add(1, { plan: "pro" });

receivers:  prometheus/supabase:    config:      scrape_configs:        - job_name: supabase          scrape_interval: 60s          scrape_timeout: 30s          scheme: https          metrics_path: /customer/v1/privileged/metrics          basic_auth:            username: service_role            password: ${env:SUPABASE_SECRET_KEY}          static_configs:            - targets: ["${env:SUPABASE_PROJECT_REF}.supabase.co"]processors:  memory_limiter:    check_interval: 1s    limit_percentage: 80    spike_limit_percentage: 20  resource:    attributes:      - key: service.name        value: supabase        action: upsert      - key: deployment.environment.name        value: ${env:BELVADOR_ENVIRONMENT}        action: upsert  batch: {}exporters:  otlphttp/belvador:    endpoint: ${env:BELVADOR_OTLP_ENDPOINT}    headers:      Authorization: Bearer ${env:BELVADOR_INGEST_KEY}    compression: gzip    retry_on_failure:      enabled: true    sending_queue:      enabled: trueservice:  pipelines:    metrics:      receivers: [prometheus/supabase]      processors: [memory_limiter, resource, batch]      exporters: [otlphttp/belvador]

export BELVADOR_OTLP_ENDPOINT=https://ingest.belvador.dev/otlp/<project-id>export BELVADOR_INGEST_KEY=<your-ingest-key>export SUPABASE_PROJECT_REF=<project-ref>export SUPABASE_SECRET_KEY=<sb_secret_… or service_role key>export BELVADOR_ENVIRONMENT=productionotelcol-contrib --config supabase-metrics.yaml