Chapter 59: Cost & Disaster Recovery

You build an operational-excellence skill first, then apply it to control spend and recover from failures: FinOps visibility, right-sizing, backups, restores, and chaos testing.

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Goals

• Understand cloud cost fundamentals and allocation
• Right-size workloads with VPA and optimize requests/limits
• Enable cost visibility with OpenCost and FinOps practices
• Implement backups/restores with Velero for clusters and volumes
• Practice chaos engineering to validate resilience
• Capture patterns in a reusable operational-excellence skill

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Lesson Progression

• Build Your Operational-Excellence Skill
• Cost fundamentals and allocation
• Right-sizing with VPA; cost visibility with OpenCost
• FinOps practices (budgets, alerts, showback/chargeback)
• Backup/recovery fundamentals and Velero usage
• Chaos engineering basics
• Capstone: cost-aware, resilient Task API; finalize the skill

Each lesson ends with a reflection to test, find gaps, and improve.

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Outcome & Method

You finish with cost monitoring, right-sized workloads, tested backups/restores, and chaos validation for the Task API—plus a reusable operational-excellence skill. The chapter follows the skill-first pattern with a spec-driven capstone.

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Prerequisites

• Chapters 49-58 (containerized, deployed, secured, observable service)