kubernetes/kops · error

listing IPs for server %s: %w

Error message

listing IPs for server %s: %w

What it means

Wrap-around error from GetServerIP when the Scaleway IPAM API ListIPs (filtered by region, IPv4 only, resource ID = server, zonal) fails. The SDK error is preserved with %w. IPAM is Scaleway's source of truth for resource IPs, so this call is how the server's private IP is resolved.

Source

Thrown at upup/pkg/fi/cloudup/scaleway/cloud.go:512

		return nil, fmt.Errorf("failed to list cluster volumes: %w", err)
	}
	return volumes.Volumes, nil
}

func (s *scwCloudImplementation) GetServerIP(serverID string, zone scw.Zone) (string, error) {
	region, err := zone.Region()
	if err != nil {
		return "", fmt.Errorf("converting zone %s to region: %w", zone, err)
	}

	ips, err := s.ipamAPI.ListIPs(&ipam.ListIPsRequest{
		Region:     region,
		IsIPv6:     new(false),
		ResourceID: &serverID,
		Zonal:      new(zone.String()),
	}, scw.WithAllPages())
	if err != nil {
		return "", fmt.Errorf("listing IPs for server %s: %w", serverID, err)
	}

	if len(ips.IPs) < 1 {
		return "", fmt.Errorf("could not find IP for server %s", serverID)
	}
	if len(ips.IPs) > 1 {
		klog.V(10).Infof("Found more than 1 IP for server %s, using %s", serverID, ips.IPs[0].Address.IP.String())
	}

	return ips.IPs[0].Address.IP.String(), nil
}

func (s *scwCloudImplementation) DeleteDNSRecord(record *domain.Record, clusterName string) error {
	domainName := strings.SplitN(clusterName, ".", 2)[1]
	recordDeleteRequest := &domain.UpdateDNSZoneRecordsRequest{
		DNSZone: domainName,
		Changes: []*domain.RecordChange{
			{

View on GitHub (pinned to 4c8573c808)

Solutions

1. Confirm the credentials/project can see the server: `scw ipam ip list resource-id=<serverID> zone=<zone>`.
2. Verify the server actually exists in the given zone (a stale/terminated server ID will not resolve).
3. Retry with backoff on 429/5xx; check Scaleway status for IPAM incidents.
4. If the project predates IPAM coverage for that resource type, migrate resources or upgrade tooling per Scaleway IPAM docs.

// preflight: IPAM reachable and resource visible
ipamAPI := ipam.NewAPI(client)
if _, err := ipamAPI.ListIPs(&ipam.ListIPsRequest{Region: region, PageSize: scw.Uint32Ptr(1)}); err != nil {
  return fmt.Errorf("ipam preflight failed: %w", err)
}

ip, err := cloud.GetServerIP(serverID, zone)
if err != nil {
  var scwErr *scw.Error
  if errors.As(err, &scwErr) && (scwErr.StatusCode == 429 || scwErr.StatusCode >= 500) {
    return retryAfter(backoff)
  }
  return err
}

When it happens

Trigger: ipam.API.ListIPs failure: invalid credentials, IPAM not available/enabled in the zone/region, server resource not visible to the project, network error, or API outage/rate limit.

Common situations: Older Scaleway projects where IPAM doesn't cover legacy resources; wrong project credentials so the server ID isn't found by IPAM; Scaleway IPAM incident during deregistration or cloud-group build.

Related errors

• listing IPs for deletion: %w
• failed to get IP for server %q: %w
• no IP found for server %q: %w
• describing instance for arn %q
• failed to delete instance IP %s: %w

AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/67cfea5b7d3fba45. Report an issue: GitHub.