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What is the AWS Well-Architected Framework, and what are its pillars?

AWS · Advanced level

Answer

The AWS Well-Architected Framework reviews workloads across Operational Excellence, Security, Reliability, Performance Efficiency, Cost Optimization, and Sustainability. I use it to turn architecture risk into prioritized actions.

Technical explanation

Well-Architected reviews should produce tracked remediation items, not just discussion notes.

Infrastructure as code should use reviewable plans/change sets, reusable modules, policy checks, drift detection, and controlled rollout pipelines.

Architecture reviews should produce prioritized risk remediation with owners and dates, not just high-level best-practice statements.

State, stack outputs, secrets, and deployment permissions must be secured because IaC pipelines often have powerful privileges.

Hands-on example

1. Model the resource or architecture through CloudFormation or Terraform rather than console changes.

2. Review the plan/change set for replacements, deletes, security exposure, and cost-impacting changes.

3. Apply in non-production, run validation tests, then promote through approval to production.

4. Run drift detection or state comparison afterward and remediate manual changes through code.

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