Getting Started with OpenTelemetry: Step-by-Step Guide

Introduction OpenTelemetry is an open-source observability framework for cloud-native software, providing a set of APIs, libraries, agents, and instrumentation to collect metrics, logs, and traces. It’s a powerful tool for gaining insight into distributed systems and performance bottlenecks. In this article, we’ll walk through what OpenTelemetry is, why you should use it, and how to set it up step-by-step. Why OpenTelemetry? Unified Observability: One standard for logs, metrics, and traces. Vendor-Neutral: Export data to systems like Prometheus, Jaeger, or commercial APMs. Extensible: Support for multiple languages and platforms. Step-by-Step Guide Step 1: Install the Collector Use the OpenTelemetry Collector to receive, process, and export telemetry data. ...

August 31, 2025 · 2 min · 255 words · John Cena

Jaeger: Installation and Usage Guide for Distributed Tracing in Kubernetes

Introduction Jaeger is an open-source end-to-end distributed tracing tool originally developed by Uber Technologies. It is used for monitoring and troubleshooting microservices-based distributed systems. This guide provides a clear overview of how to install and use Jaeger in Kubernetes with practical examples. Why Use Jaeger? Visualize service dependencies and latencies Troubleshoot performance bottlenecks Monitor request paths across microservices Support for OpenTelemetry Prerequisites A running Kubernetes cluster (e.g., Minikube, k3s, GKE, etc.) kubectl configured Helm installed 1. Install Jaeger with Helm helm repo add jaegertracing https://jaegertracing.github.io/helm-charts helm repo update helm install jaeger jaegertracing/jaeger --set query.basePath=/jaeger --set ingress.enabled=true --set ingress.hosts="{jaeger.yourdomain.com}" To expose Jaeger locally: ...

August 29, 2025 · 2 min · 269 words · John Cena

What is an SRE (Site Reliability Engineer)?

Site Reliability Engineering (SRE) may sound like a fancy job title, but it’s actually one of the most practical and important roles in modern infrastructure and software teams. What is an SRE? SRE stands for Site Reliability Engineer. In simple terms, an SRE ensures that systems are reliable, scalable, and efficient. The concept was born at Google, where software engineers were tasked with running production systems using software engineering principles. ...

July 25, 2025 · 2 min · 221 words · John Cena

SRE Golden Signals: simple and practical

Site Reliability Engineering (SRE) is not just about “keeping things up” — it’s about building systems that are reliable and understandable. At the heart of this idea lies a simple but powerful toolset: the four golden signals. Let’s break them down in human terms — no jargon, just practical insights. 🚨 What Are the Golden Signals? Golden signals are the four key metrics that Google’s SRE team recommends tracking for any user-facing service: ...

July 24, 2025 · 2 min · 338 words · DevOps Insights

What is Observability? Explained Simply

What is Observability? Have you ever deployed an app to production and something just felt… off? Maybe it’s slower than usual. Maybe users are seeing errors, but you’re not sure why. This is where observability comes in. Observability is about answering the question: “What’s going on inside my system?” 🧠 The Core Idea Observability is the ability to understand the internal state of a system based on the data it produces: logs, metrics, and traces. ...

July 18, 2025 · 2 min · 297 words · John Cena