DevOps 路 Write-up topic
AWS
Write-ups from real AWS work: migrations, cost, networking and infrastructure as code. 5 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
February 2026 1
January 2026 2
- GCP to AWS Migration: Connectivity, Data, Workloads and Cutover19 Jan 2026Executing a Google Cloud to AWS migration: the VPN, database replication with DMS, object copies, VM replication, moving GKE workloads to EKS, and a rehearsed cutover runbook.
- AWS DMS
- AWS DataSync
- AWS Application Migration Service
- Amazon EKS
- Cloud VPN
- Transit Gateway
- GCP to AWS Migration: Assessment, Service Mapping and the Landing Zone5 Jan 2026How to plan a move from Google Cloud to AWS: inventory, dependency mapping, service equivalents, network design, identity, waves and success criteria.
- Google Cloud
- AWS Organizations
- IAM Identity Center
- Transit Gateway
- Cloud Asset Inventory