kubernetes/kops · error

DetachInstance is not implemented yet for Scaleway

Error message

DetachInstance is not implemented yet for Scaleway

What it means

The Scaleway cloud implementation does not implement DetachInstance; this is a hard guard returning a fixed error whenever kops tries to detach an instance from a Scaleway server group. Scaleway support is incomplete for this operation.

Source

Thrown at upup/pkg/fi/cloudup/scaleway/cloud.go:301

					_, err := s.lbAPI.RemoveBackendServers(&lb.ZonedAPIRemoveBackendServersRequest{
						Zone:      s.zone,
						BackendID: backEnd.ID,
						ServerIP:  []string{serverIP},
					})
					if err != nil {
						return fmt.Errorf("deregistering cloud instance %s of group %q: removing IP from lb: %w", i.ID, i.CloudInstanceGroup.HumanName, err)
					}
				}
			}
		}
	}

	return nil
}

func (s *scwCloudImplementation) DetachInstance(i *cloudinstances.CloudInstance) error {
	klog.V(8).Infof("Scaleway DetachInstance is not implemented yet")
	return fmt.Errorf("DetachInstance is not implemented yet for Scaleway")
}

// FindClusterStatus was used before etcd-manager to check the etcd cluster status and prevent unsupported changes.
func (s *scwCloudImplementation) FindClusterStatus(cluster *kops.Cluster) (*kops.ClusterStatus, error) {
	klog.V(8).Info("Scaleway FindClusterStatus is not implemented")
	return nil, nil
}

// FindVPCInfo is not implemented yet, it's only here to satisfy the fi.Cloud interface
func (s *scwCloudImplementation) FindVPCInfo(id string) (*fi.VPCInfo, error) {
	klog.V(8).Info("Scaleway clusters don't have a VPC yet so FindVPCInfo is not implemented")
	return nil, fmt.Errorf("FindVPCInfo is not implemented yet for Scaleway")
}

func (s *scwCloudImplementation) GetApiIngressStatus(cluster *kops.Cluster) ([]fi.ApiIngressStatus, error) {
	var ingresses []fi.ApiIngressStatus
	name := "api." + cluster.Name

View on GitHub (pinned to 4c8573c808)

Solutions

1. Avoid workflows that trigger instance detach on Scaleway
2. Track upstream kops Scaleway support for DetachInstance

When it happens

Trigger: Thrown at upup/pkg/fi/cloudup/scaleway/cloud.go:301 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/d8f108a7ba0c15d4. Report an issue: GitHub.