kubernetes/kops · error

getting the region of %q: %w

Error message

getting the region of %q: %w

What it means

While resolving nodeup's S3 location on AWS, querying the bucket's region via the S3 path's Region() call failed (network, credentials, or HeadBucket error). The location string in the message is the s3:// URL whose region could not be determined.

Source

Thrown at pkg/model/resources/nodeup.go:436

func (b *NodeUpScript) ResolveS3Region(ctx context.Context, vfsContext *vfs.VFSContext) error {
	if b.CloudProvider != string(kops.CloudProviderAWS) {
		return nil
	}
	location := b.firstLocationWithScheme("s3://")
	if location == "" {
		return nil
	}
	p, err := vfsContext.BuildVfsPath(location)
	if err != nil {
		return fmt.Errorf("building path for %q: %w", location, err)
	}
	s3Path, ok := p.(*vfs.S3Path)
	if !ok {
		return fmt.Errorf("unexpected path type %T for %q", p, location)
	}
	b.S3Region, err = s3Path.Region(ctx)
	if err != nil {
		return fmt.Errorf("getting the region of %q: %w", location, err)
	}
	supported, err := awsup.SupportsS3BootstrapEndpoint(ctx, b.S3Region)
	if err != nil {
		return err
	}
	if !supported {
		return fmt.Errorf("downloading nodeup from an s3:// URL is not supported in AWS region %q", b.S3Region)
	}
	return nil
}

func gzipBase64(data string) (string, error) {
	var b bytes.Buffer
	gz := gzip.NewWriter(&b)

	_, err := gz.Write([]byte(data))
	if err != nil {
		return "", err

View on GitHub (pinned to 4c8573c808)

Solutions

1. Check network connectivity and AWS credentials for S3 access
2. Verify the s3:// bucket exists and is reachable from the machine running kOps
3. Set the region explicitly or use a location whose bucket region is resolvable

When it happens

Trigger: Thrown at pkg/model/resources/nodeup.go:436 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/f1c5302f3728493d. Report an issue: GitHub.