DNS Cutover for Cloud Migration: TTL, Weighting, Rollback
A practical Route 53 DNS cutover for moving a production workload off-premises: lower the TTL first, shift traffic with weighted records, and keep a health-checked rollback path.
Blog
What we have learned,
written down.
Notes from real engagements: landing zones, pipelines, on-call, and the security work that gets left until an audit. No thought leadership, no funnels.
Import Existing Infrastructure Into Terraform Without Downtime
How to bring an existing cloud estate under Terraform using config-driven import blocks: preview the plan, generate configuration, and avoid accidental replacement.
Landing Zone IP Address Planning: CIDR Layout Before You Migrate
Allocate every VPC and VNet CIDR from one authoritative source before the first workload lands. How to size ranges, avoid overlap with on-prem, and stop paying for it later.
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