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Observability with Prometheus and Grafana

A Complete Hands-On Guide to Operational Clarity in Cloud-Native Systems

Instrumenting Applications with Prometheus

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What is Instrumentation?

Observability with Prometheus and Grafana

A Complete Hands-On Guide to Operational Clarity in Cloud-Native Systems

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Table of Contents

Preface

Who This Guide is For

What You Will Learn

About the Author

Join the Community

Your Feedback Matters

How to Use This Guide

General Recommendations

Technical Recommendation…

What is Prometheus and W…

What is Prometheus?

What Makes Prometheus Un…

Understanding Prometheus…

How Does Prometheus Work?

Prometheus Architecture

Prometheus: Limitations,…

Reliability Over Complet…

Long-Term and Clustered …

There is No Advanced Use…

Visualization is not Pro…

Prometheus is not a Logg…

The Pull Model is Perfec…

Short-Lived Jobs and the…

High Cardinality

Do One Thing and Do It W…

Exploring Prometheus: In…

Installing Prometheus

Configuring Prometheus

Exploring the Prometheus…

Understanding Prometheus…

Exploring and Interpreti…

The TSDB Status

Using the TSDB Status In…

The Runtime and Build In…

Integrating Prometheus w…

A User-Unfriendly Web UI…

Grafana: Visualizing Tim…

Deploying Grafana

Adding Prometheus as a D…

Adding Prometheus Dashbo…

Monitoring Grafana Using…

Alertmanager: Metric-Bas…

Installing Alertmanager

Integrating Prometheus w…

Alertmanager: Rules, Rec…

Alerting Rules, Expressi…

Alertmanager Receivers

Silencing Alerts

Grafana Alerting vs. Pro…

Choosing Between Prometh…

Relabeling in Prometheus

Understanding Relabeling

Target, Metric, Write, a…

Relabeling: Rules and Ac…

Relabeling Rules

Relabeling Actions

Relabeling: Best Practic…

Monitor the Performance …

Watch Out For Cardinalit…

Use Relabeling Sparingly…

Prefer Metadata Labels f…

Version Control and Docu…

Test Before Production D…

Understand Edge Cases an…

Use the Right Relabeling…

Monitoring *NIX Systems …

Introduction to Exporters

Adding Scraping Targets

Installing the Node Expo…

Node Exporter: Metrics a…

Building Grafana Dashboa…

Building Custom Dashboar…

The Node Exporter Full D…

Understanding Network Bl…

What is Network Black Bo…

The Blackbox Exporter

How to Install the Black…

Monitoring Endpoints wit…

Your First Steps with th…

Debugging the Probe

Integrating the Blackbox…

Black Box Exporter: Adva…

Advanced Configurations

Beyond the Blackbox Expo…

Building User-Friendly G…

Increase, Rate and Insta…

Understanding the Usage …

Rates and SRE practices

Rate vs. Instant Rate

Rate vs. Increase

Instrumenting Applicatio…

What is Instrumentation?

How Prometheus Instrumen…

Instrumentation with Pro…

Counters: Tracking Metri…

Gauges: Tracking Metrics…

Histograms: Tracking the…

Summaries: High-Accuracy…

The Four Core Metric Typ…

Additional Custom Metric…

Prometheus Pushgateway: …

When Is the Pushgateway …

Configuring the Pushgate…

The Push Process

Configuring Prometheus t…

Prometheus and Docker

Docker Metrics: Enabling…

cAdvisor: Richer Contain…

Monitoring Docker Swarm …

Installation and Initial…

Configuring Prometheus

Security Aspects

Monitoring Kubernetes wi…

Kubernetes Service Disco…

Setting Up a Kubernetes …

Exporters and Metrics in…

Monitoring Kubernetes wi…

Using Prometheus to Moni…

Do Not Reinvent the Wheel

An All-in-One Kubernetes…

Prometheus High Availabi…

Fundamentals of Scaling …

A Highly Available Setup

Sharding and Federation:…

Strategies to Scale Prom…

Prometheus on the Edge

Prometheus Agent Mode

When to Use the Agent Mo…

What Are the Limitations?

Setting Up the Agent Mode

Strategies to Scale Prom…

Google Cloud Managed Ser…

Amazon Managed Service f…

Grafana Cloud (Managed P…

Logz.io Infrastructure M…

Sysdig Monitor (Enterpri…

Afterword

Metadata

Author(s): Aymen El Amri (eon01)

Created: November 28, 2025

Last Updated: November 28, 2025

Author's Progress: 100%

Version: v3

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