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not just reading.
Hands-on exercises, interactive simulators, and practical guides. Built for engineers who prefer a terminal over a slide deck.
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Featured Posts
Our most popular articles and tutorials
Best Claude Code Plugins for DevOps Engineers in 2026
A curated guide to Claude Code plugins built for DevOps workflows - from Terraform validation and Kubernetes troubleshooting to security scanning and CI/CD pipeline optimization.
CLI vs MCP: When to Use Each for AI-Powered DevOps
CLI tools and MCP servers both let AI agents interact with your infrastructure, but they solve different problems. Here is when to reach for each one and why the answer is usually both.
Coolify: Self-Hosted PaaS on DigitalOcean - Deploy Apps Without Vendor Lock-In
Set up Coolify on a DigitalOcean droplet and get your own Vercel-like platform for deploying Next.js apps, databases, and more - with auto SSL, GitHub auto-deploy, and no per-seat pricing.
Hands-On DevOps Exercises
Practice real-world DevOps scenarios with step-by-step guidance. Build skills through interactive exercises designed by industry experts.
Master essential Git workflows, branching strategies, and collaboration techniques used in modern development teams.
- Understand core Git concepts and workflow
- Create and manage branches effectively
- +2 more objectives
Implement production-ready caching patterns with Redis to dramatically improve application performance and scalability.
- Implement cache-aside and write-through patterns
- Design effective cache invalidation strategies
- +2 more objectives
Master essential Linux performance analysis and optimization techniques to diagnose and resolve system bottlenecks.
- Identify CPU, memory, and I/O bottlenecks
- Use performance monitoring tools effectively
- +2 more objectives
15+
Interactive Exercises
60 min
Average Duration
5k+
Completed Labs
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Latest Posts
Stay up to date with the latest DevOps content
How Does It Work So Fast? The Engineering Behind Instant UI Responses
Credit card validation, username checks, autocomplete, URL shorteners - they all feel instant. Here is what is actually happening under the hood in each case.
Two Composer Command Injection Flaws Let Attackers Run Arbitrary Code - Even Without Perforce
CVE-2026-40176 and CVE-2026-40261 affect all Composer 2.x versions. A malicious composer.json or crafted package metadata can execute OS commands on your machine. Upgrade to 2.9.6 now.
SLOs, SLIs, and Error Budgets: A Practical Implementation Guide
Your service went down at 2 AM and nobody could agree on whether it was "bad enough" to page someone. SLOs, SLIs, and error budgets fix that. Here is how to define, measure, and act on them with real Prometheus queries and alerting rules.
Best Claude Code Plugins for DevOps Engineers in 2026
A curated guide to Claude Code plugins built for DevOps workflows - from Terraform validation and Kubernetes troubleshooting to security scanning and CI/CD pipeline optimization.
Claude Code: Agents, Commands, Skills, and Plugins Explained
A clear breakdown of the four extension types in Claude Code - what each one does, how they differ, and when to use which. No marketing fluff, just practical explanations with examples.
CLI vs MCP: When to Use Each for AI-Powered DevOps
CLI tools and MCP servers both let AI agents interact with your infrastructure, but they solve different problems. Here is when to reach for each one and why the answer is usually both.
Latest Guides
Step-by-step tutorials to boost your DevOps skills
Security Gates
Implement automated security gates that block deployments on critical vulnerabilities, policy violations, and security failures. Shift security left in your CI/CD pipeline.
Supply Chain Security
Secure your software supply chain with SBOM generation, artifact signing with Sigstore, and SLSA framework compliance. Learn to prevent supply chain attacks.
Introduction to Packer
Learn how to build automated machine images with HashiCorp Packer, from basic concepts to multi-platform image creation
Introduction to AWS
Learn AWS fundamentals step by step, from basic concepts to building your first cloud application.
Introduction to Python
A practical guide to Python programming from basics to building real projects
Introduction to Docker
Learn how to use Docker to build, ship, and run applications efficiently through containerization
Core DevOps Practices
The building blocks every DevOps engineer should know
CI/CD
Automate builds, tests, and deployments. GitHub Actions, Jenkins, GitLab CI, ArgoCD.
Infrastructure as Code
Manage infrastructure through code. Terraform, Ansible, Pulumi, CloudFormation.
Containers
Package and orchestrate applications. Docker, Kubernetes, Podman, Helm.
Monitoring
Observe and debug production systems. Prometheus, Grafana, ELK, Datadog.
What is DevOps?
DevOps combines software development and IT operations to shorten the development lifecycle while delivering features, fixes, and updates reliably. It emphasizes collaboration, automation, continuous integration, continuous delivery, and infrastructure as code.
At its core, DevOps bridges the gap between teams who write code and teams who deploy and maintain it. Rather than working in silos with handoffs, DevOps teams share responsibility for the entire software lifecycle.