Overview

The Manual Era of DevOps is Over. If you are still running kubectl apply from your laptop, or relying on complex CI scripts to ""push"" changes to production, you are fighting a losing battle against entropy. In a modern cloud-native environment, the state of your infrastructure should not be a task you perform-it should be a guarantee you enforce. GitOps with ArgoCD is the definitive guide to replacing fragile, imperative pipelines with robust, declarative automation. Written for the Platform Engineer who is tired of ""it worked on my machine,"" this book provides the engineering rigor needed to turn ArgoCD from a simple deployment tool into the autonomous brain of your infrastructure. It cuts through the noise of simple tutorials to address the architectural challenges of running Kubernetes at scale. Inside, you will master the mechanics of Self-Healing Infrastructure: The End of ""Configuration Drift"" Discover how to make your cluster self-policing. Learn to configure aggressive pruning and self-healing strategies that detect and revert unauthorized manual changes before they become incidents. Fleet-Wide Orchestration: Scale your operations from one cluster to one hundred without adding headcount. Master the Hub-and-Spoke architecture, ApplicationSets, and Generators to deploy updates across global regions instantly and consistently. Zero-Trust Secret Management: Move beyond insecure environment variables. Implement production-grade patterns for managing sensitive data using the External Secrets Operator and Sealed Secrets, ensuring your Git repository remains safe while your cluster remains locked down. Data-Driven Deployments: Replace ""hope"" with ""metrics."" Implement Argo Rollouts to automate Canary and Blue-Green releases, using real-time Prometheus data to automatically rollback code that throws errors-without human intervention. Resilience and Recovery: Build a platform that survives the worst-case scenario. From troubleshooting ""stuck"" namespaces and finalizers to architecting a ""break-glass"" Disaster Recovery plan that rebuilds your control plane from scratch, you will learn the Day 2 skills that separate seniors from juniors. Don't just deploy code. Enforce state. Read GitOps with ArgoCD and build a system that heals itself, scales indefinitely, and lets you sleep through the night.

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