kubernetes/kops · error

could not determine region from zone %s: %w

Error message

could not determine region from zone %s: %w

What it means

ParseRegionFromZone failed: after stripping the numeric suffix from the zone (e.g. 'fr-par-1' -> 'fr-par'), scw.ParseRegion rejected the result. Means the cluster spec carries a malformed or unknown zone string that doesn't map to a Scaleway region.

Source

Thrown at upup/pkg/fi/cloudup/scaleway/utils.go:63

	return isHTTPCodeError(err, http.StatusNotFound) || errors.As(err, &notFoundError)
}

func ParseZoneFromClusterSpec(clusterSpec kops.ClusterSpec) (scw.Zone, error) {
	zone := ""
	for _, subnet := range clusterSpec.Networking.Subnets {
		if zone == "" {
			zone = subnet.Zone
		} else if zone != subnet.Zone {
			return "", fmt.Errorf("scaleway currently only supports clusters in the same zone")
		}
	}
	return scw.Zone(zone), nil
}

func ParseRegionFromZone(zone scw.Zone) (region scw.Region, err error) {
	region, err = scw.ParseRegion(strings.TrimRight(string(zone), "-123"))
	if err != nil {
		return "", fmt.Errorf("could not determine region from zone %s: %w", zone, err)
	}
	return region, nil
}

func ClusterNameFromTags(tags []string) string {
	for _, tag := range tags {
		if strings.HasPrefix(tag, TagClusterName) {
			return strings.TrimPrefix(tag, TagClusterName+"=")
		}
	}
	return ""
}

func InstanceGroupNameFromTags(tags []string) string {
	for _, tag := range tags {
		if strings.HasPrefix(tag, TagInstanceGroup) {
			return strings.TrimPrefix(tag, TagInstanceGroup+"=")
		}

View on GitHub (pinned to 4c8573c808)

Solutions

1. Correct the zone in the cluster spec to a valid Scaleway zone like fr-par-1 or nl-ams-2
2. Check the wrapped error for the exact parse failure
3. Update kOps/SDK if the zone is new and unsupported by the vendored SDK

When it happens

Trigger: Thrown at upup/pkg/fi/cloudup/scaleway/utils.go:63 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/b039964b7c099bc9. Report an issue: GitHub.