Migration guidance to customers impacted by the deprecation of legacy Local Zones and Wavelength Zones
Note: In this document, the term “specified zone” refers to the zone that you will be migrating from.
The following guidance found in Availability Zone (AZ) Migration & Instance Upgrade Guide is applicable here for upgrading and migrating EC2 Instances, migrating EBS, and migrating ELB (specifically ALB for Local Zones and Wavelength Zones).
In addition to the above, we will review some additional migration strategies for Local Zones and Wavelength zones.
Using AWS DRS to Migrate EC2 Instances and Attached EBS Volumes
AWS DRS can also be used for migrating EC2 instances and attached EBS volumes to another Local Zone, or to the AWS Region. Continuous block-level replication with encryption and compression is used to replicate data to the new destination zone, and the once initial replication is complete the recovery instance will be maintained until cut over is initiated. This approach minimizes downtime.
See AWS Local Zone to AWS Local Zone or AWS Local Zone to Region options for migration.
Migrating Amazon EKS & ECS clusters
If your EKS or ECS cluster is stateless, then simply redeploy to your new Local Zone or AWS Region. Your Application Load Balancer should also be redeployed to your new Local Zone or AWS Region, and updated to point to your new cluster. If you deployed your cluster using the AWS Console, we offer tools such as CloudFormation IaC Generator which can create a CloudFormation template using your current environment to automate your redeployment. See Generate templates from existing resources with IaC generator for more information.
For stateful workloads, open source tools such as Velero can be used to migrate EKS Kubernetes cluster resources and persistent volumes. Velero can also be used to back up your Kubernetes resources and persistent volumes prior to migration. Alternatively, see the "Migrating EBS" section of the Availability Zone (AZ) Migration & Instance Upgrade Guide post, you can migrate your EKS or ECS cluster’s associated EBS volumes into the AWS Region or a new Local Zone via EBS snapshots.
Updating Amazon Route53 Geoproximity Routing
To update your Amazon Route53 Geoproximity routing, simply update your geoproximity rule to use the new group running your Local Zone or AWS Region resources depending on your migration destination. See documentation on Geoproximity routing for more information.
Migrating Amazon GameLift Servers
To migrate your managed GameLift fleets, simply add a new Local Zone or AWS Region to your fleet and remove the old location. See documentation on Updating Fleet Locations for more information.