Custom Grafana Dashboard Tutorial for NodeJS: Monitor Your App Like a Pro
Monitor a Node.js app with Prometheus and Grafana: expose metrics with prom-client, run Prometheus and build a custom Grafana dashboard.
Older articles
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Step by Step Guide to Distributed Tracing with Jaeger: From Setup to Insight
Distributed tracing with Jaeger step by step: deploy Jaeger, instrument services with OpenTelemetry, propagate context and read traces.
DevOps & Infrastructure
Terraform vs OpenTofu Comparison: Which IaC Tool Should You Choose in 2026?
Terraform vs OpenTofu after the licence change: compatibility, new features on each side, registry and support, and which one to adopt.
Optimizing Elasticsearch Query Performance for Large Logs: 10 Practical Tips
Ten tips for fast Elasticsearch log queries: filter context, data streams and ILM, no leading wildcards, explicit mappings and runtime fields.
An Introduction to OpenTelemetry for Developers: Stop Guessing and Start Observing
OpenTelemetry for developers: traces, metrics and logs explained, instrumenting a Node.js app, exporting data and common adoption mistakes.
Observability
SigNoz Review for Open Source Observability: A Real-World Alternative to Datadog?
SigNoz reviewed: open-source metrics, traces and logs on OpenTelemetry and ClickHouse. Strengths, gaps, cloud vs self-hosted, and vs Datadog.