DevOps 路 Write-up topic
Cost optimisation
Finding and removing cloud waste, with real numbers. 2 write-ups, newest first.
September 2026 2
- AWS Cost Optimization, Part 2: Cutting the Bill by One-Third21 Sept 2026What was found and changed to reduce an AWS bill by about one-third: idle services and VMs, unused Elastic IPs, S3 bucket policies, fewer CloudFront distributions, a leaner staging environment and a local Ubuntu VM for testing.
- Cost Explorer
- Amazon EC2
- Elastic IP
- Amazon S3
- Amazon CloudFront
- EventBridge Scheduler
- AWS Cost Optimization, Part 1: Finding Where the Money Goes7 Sept 2026Build cost visibility before cutting anything: tagging, Cost Explorer, Data Exports with Athena, budgets and anomaly alerts, and scripts that find idle and orphaned resources.
- AWS Cost Explorer
- AWS Data Exports
- Amazon Athena
- Cost Optimization Hub
- Compute Optimizer
- AWS Budgets