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Featured Posts
Our most popular articles and tutorials
Introduction to ArgoCD: Getting Started with GitOps
Learn how ArgoCD brings GitOps principles to Kubernetes deployments. This hands-on guide covers core concepts, architecture, and practical examples to get you started with declarative, automated application delivery.
A Day in the Life of a DevOps Engineer
Follow a DevOps engineer through a typical day - from morning deployments to midnight hotfixes. Real challenges, real solutions, and real impact on business operations.
How Docker Differs from a Virtual Machine (And Why It Matters)
Containers and virtual machines both isolate environments, but they work in very different ways. This guide explains the key differences and when to use each.
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
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Latest Posts
Stay up to date with the latest DevOps content
Understanding Kubernetes Operators: A Deep Dive with a Practical Example
Learn the concepts behind Kubernetes operators, why they exist, and how the control loop pattern works—then build one yourself to solidify your understanding.
Docker Image Optimization: Best Practices for Smaller, Faster Images
Learn proven strategies to optimize Docker images: multi-stage builds, layer caching, base image selection, and security hardening. Reduce image size by up to 90% while improving build times and security.
Introduction to ArgoCD: Getting Started with GitOps
Learn how ArgoCD brings GitOps principles to Kubernetes deployments. This hands-on guide covers core concepts, architecture, and practical examples to get you started with declarative, automated application delivery.
How to Set Up AWS Cost Explorer and Budgets for Teams
Learn how to set up AWS Cost Explorer and Budgets to track cloud spending, prevent cost overruns, and keep your team informed about AWS expenses.
Deployment Strategies: Blue-Green, Canary, and Rolling Deployments Explained
Learn how to deploy applications safely using blue-green, canary, and rolling deployment strategies. Understand the theory, trade-offs, and decision-making behind each approach.
Ping Response: Request Timed Out vs Destination Host Unreachable
Understand the difference between ping timeout and destination unreachable errors, what they mean for network troubleshooting, and how to diagnose connectivity issues.
Latest Guides
Step-by-step tutorials to boost your DevOps skills
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
Introduction to Kubernetes
Learn how to orchestrate containerized applications at scale with Kubernetes
Introduction to Linux
A practical guide to getting started with Linux for beginners and experienced users alike. Learn the basics of the Linux operating system, command line, and system administration skills needed to feel comfortable in a Linux environment.