Score:2

Enabling GKE Backup on regional VPC peering Autopilot Clusters

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We are trying to enable GKE Backup for our Autopilot Clusters, but we are encountering error while trying to run following command (with proper values that is):

gcloud container clusters update CLUSTER_NAME \
   --project=PROJECT_ID  \
   --region=COMPUTE_REGION \
   --update-addons=BackupRestore=ENABLED

But above gives us following error:

ERROR: (gcloud.container.clusters.update) INVALID_ARGUMENT: Gce reservation must be enabled for regional VPC peering clusters.

And we are not sure what we are missing in regards to configuration. Apparently, we need to use GCE Reservations, but we have no idea how/why all of a sudden.

A bit of information:

  • Control Plane version is 1.24.7-gke.900, nodes themselves are at v1.22.13-gke.1000
  • Cluster uses shared VPC subnet that is available from another project via VPC Peering (or so my understanding goes of whole setup)
  • We are solely using GKE on Autopilot, no other resources being used on this project
  • Clusters do have Workload Identity enabled
  • Clusters are Regional and on Regular release channel

Trying to find similiar issue or bits of documentation to help us with encountered error were fruitless, so any help is appreciated

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