kubernetes/kops · error

linode subnets must all use the same region; found %q and %q

Error message

linode subnets must all use the same region; found %q and %q

What it means

Fires while building the Linode network model: the first subnet encountered sets the region, and a later subnet in the cluster spec declared a different Region. Linode clusters are effectively single-region, so all subnets must use the same region.

Source

Thrown at pkg/model/linodemodel/network.go:69

		if subnet.Region == "" {
			return fmt.Errorf("linode subnet %q requires a region", subnetName)
		}
		if subnet.CIDR == "" {
			return fmt.Errorf("linode subnet %q requires a CIDR", subnetName)
		}

		normalizedSubnetName := linode.NormalizeLinodeLabel(b.ClusterName() + "-" + subnet.Name)
		if previousSubnetName, found := seenSubnetNames[normalizedSubnetName]; found {
			return fmt.Errorf("linode subnets %q and %q normalize to the same label %q", previousSubnetName, subnetName, normalizedSubnetName)
		}
		seenSubnetNames[normalizedSubnetName] = subnetName

		if region == "" {
			region = subnet.Region
			continue
		}
		if subnet.Region != region {
			return fmt.Errorf("linode subnets must all use the same region; found %q and %q", region, subnet.Region)
		}
	}

	name := linode.NormalizeLinodeLabel(b.ClusterName())
	description := fmt.Sprintf("kOps VPC for %s", b.ClusterName())
	vpcTask := &linodetasks.VPC{
		Name:        new(name),
		Lifecycle:   b.Lifecycle,
		Description: new(description),
		Region:      new(region),
	}
	c.AddTask(vpcTask)

	for _, subnet := range b.Cluster.Spec.Networking.Subnets {
		subnetName := linode.NormalizeLinodeLabel(b.ClusterName() + "-" + subnet.Name)
		subnetTask := &linodetasks.Subnet{
			Name:      new(subnetName),
			Lifecycle: b.Lifecycle,

View on GitHub (pinned to 4c8573c808)

Solutions

1. Edit the cluster spec so every subnet and instance group uses the same Linode region
2. Remove stray subnets left over from a region change before re-running `kops update`

When it happens

Trigger: Thrown at pkg/model/linodemodel/network.go:69 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/a5d1d039fd6ec4d1. Report an issue: GitHub.