← 🏗️ Declarative Infrastructure
Core
Ansible rolling patching: batches, drains, failures and recovery
Design Ansible maintenance around application capacity and per-host states. Understand serial, failure thresholds and run_once, then prevent failed nodes from returning to traffic.
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RELATED CONCEPTS
PRACTICE THIS IN REAL QUESTIONS
Infrastructure as Code & ConfigurationHow does Ansible actually work? Explain inventory, playbooks, modules and why agentless matters.→DevOps System Design & ArchitectureDesign multi-region active-active for a tier-1 API. What breaks, and what does it cost?→Containers & KubernetesLiveness, readiness and startup probes: what does each one do when it fails, and how do you get them wrong?→Infrastructure as Code & ConfigurationWhere does Terraform stop and Ansible start? Give me a case where using the wrong one hurts.→Infrastructure as Code & ConfigurationYour Ansible playbook reports changed on every run. Why is that a bug, and how do you fix it?→Incident Response & Production DebuggingA node goes NotReady. What happens to its pods, and on what timeline?→