Version Control for Infrastructure Code Questions
Understand Git fundamentals applied to infrastructure - branching strategies, pull requests, code reviews for infrastructure changes. Know how infrastructure code differs from application code. Discuss infrastructure change management - how you'd safely deploy changes, rollback if needed. Understand the risks of infrastructure changes and how to mitigate them. Know about infrastructure documentation alongside code - README files, architecture diagrams, variable explanations. Practice discussing a git workflow for collaborative infrastructure development.
HardSystem Design
34 practiced
Propose how Service Level Objectives (SLOs) and error budgets should be represented, versioned, and deployed via Git workflows alongside infrastructure code. Describe validation steps, who should review SLO changes, how SLO changes propagate to alerting and automation, and how to roll back SLO changes if they cause undesired automation behavior.
EasyTechnical
41 practiced
Explain the key differences between application code and infrastructure-as-code with respect to side effects, idempotency, testing strategies, stateful behavior, and deployment workflows. Why do these differences change how you design Git workflows and code reviews for IaC?
HardTechnical
38 practiced
Design a secure process for rotating secrets (for example database credentials or API keys) that are consumed by GitOps pipelines and CI runners. Consider secret propagation, minimizing downtime, backward compatibility, validation, and auditability. Show how Git workflows and CI/CD jobs coordinate staging, verification, and cutover of rotated credentials.
MediumSystem Design
36 practiced
Design a Git workflow for a multi-team SRE organization that manages multiple services' infrastructure in a shared repository. Describe branch strategy, pull request flow, code ownership rules, CODEOWNERS, CI gating, environment promotion (dev -> staging -> prod), and branch protection rules with examples of branch name patterns.
HardSystem Design
43 practiced
Design a scalable GitOps pipeline for managing infrastructure across multiple cloud accounts and clusters supporting dev/staging/prod. Requirements:- Declarative manifests live in Git- Automated reconciliation with drift detection- Role-based access controls per environment- Approval gates for production- Secure handling of secretsDescribe repository layout, automation components (controllers, CI), workflows for PRs and merges, and rollback procedures for failed reconciliations.
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