kubernetes/kops · error

found multiple tags for: %v

Error message

found multiple tags for: %v

What it means

The deprecated tag-based lookup found more than one AssociatedElasticIp tag on the referenced subnet; kOps expects exactly one and cannot choose between conflicting tags.

Source

Thrown at upup/pkg/fi/cloudup/awstasks/elastic_ip.go:119

		var filters []ec2types.Filter
		filters = append(filters, awsup.NewEC2Filter("key", "AssociatedElasticIp"))
		filters = append(filters, awsup.NewEC2Filter("resource-id", *e.TagOnSubnet.ID))

		request := &ec2.DescribeTagsInput{
			Filters: filters,
		}

		response, err := cloud.EC2().DescribeTags(ctx, request)
		if err != nil {
			return nil, fmt.Errorf("error listing tags: %v", err)
		}

		if response == nil || len(response.Tags) == 0 {
			return nil, nil
		}

		if len(response.Tags) != 1 {
			return nil, fmt.Errorf("found multiple tags for: %v", e)
		}
		t := response.Tags[0]
		publicIP = t.Value
		klog.V(2).Infof("Found public IP via tag: %v", *publicIP)
	}

	if publicIP != nil || allocationID != nil {
		request := &ec2.DescribeAddressesInput{}
		if allocationID != nil {
			request.AllocationIds = []string{fi.ValueOf(allocationID)}
		} else if publicIP != nil {
			request.Filters = []ec2types.Filter{awsup.NewEC2Filter("public-ip", *publicIP)}
		}

		response, err := cloud.EC2().DescribeAddresses(ctx, request)
		if err != nil {
			return nil, fmt.Errorf("error listing ElasticIPs: %v", err)
		}

View on GitHub (pinned to 4c8573c808)

Solutions

1. Remove the stale AssociatedElasticIp tags from the subnet, leaving one
2. Migrate to a non-deprecated ElasticIP association mechanism

When it happens

Trigger: Thrown at upup/pkg/fi/cloudup/awstasks/elastic_ip.go:119 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/31a3e7cef73b188b. Report an issue: GitHub.