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I'm part of a team migrating our infrastructure from a Legacy Network to a VPC Network. Given the critical nature of our services, we're exploring ways to execute this with the least possible downtime. Our current strategy involves setting up a VPN between the Legacy and VPC networks to facilitate a gradual migration of VMs, moving them one at a time to ensure stability and minimize service disruption.
Has anyone here gone through a similar migration process? I'm particularly interested in:
Your overall experience: Do you think the VPN approach is practical? Are there any pitfalls or challenges we should be aware of?
Downtime: How did you manage to minimize downtime? Was live migration feasible, or did you have to schedule maintenance windows?
Tooling and Strategies: Are there specific tools or strategies you'd recommend for managing the migration smoothly? Would you happen to have any automation tips?
Post-migration: After moving to a VPC, have any surprises or issues cropped up? How did you mitigate them?
I aim to balance minimizing operational risk and ensuring a smooth transition. I'd greatly appreciate any insights, advice, or anecdotes you can share from your experiences. I am looking forward to learning from the community!
UPDATE: We want to migrate to the new VPC network in-order to use GKE (k8s) in the same network.
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