kubernetes/kops · error

unknown load balancer type: %q

Error message

unknown load balancer type: %q

What it means

Guard/switch default in GetApiIngressStatus: the cluster spec declares an API load balancer type (%q) that this code path does not recognize, so the frontend IP cannot be classified as internal or public. A cluster spec/field value problem.

Source

Thrown at upup/pkg/fi/cloudup/azure/azure_cloud.go:315

					})
				case kops.LoadBalancerTypePublic:
					if i.Properties.PublicIPAddress == nil || i.Properties.PublicIPAddress.ID == nil {
						continue
					}
					pips, err := c.publicIPAddressesClient.List(context.TODO(), rg)
					if err != nil {
						return nil, fmt.Errorf("error getting PublicIPAddress for API Ingress Status: %w", err)
					}
					for _, pip := range pips {
						if pip.ID == nil || pip.Properties == nil || pip.Properties.IPAddress == nil || *pip.ID != *i.Properties.PublicIPAddress.ID {
							continue
						}
						ingresses = append(ingresses, fi.ApiIngressStatus{
							IP: *pip.Properties.IPAddress,
						})
					}
				default:
					return nil, fmt.Errorf("unknown load balancer type: %q", lbSpec.Type)
				}
			}
		}
	} else {
		// Get scale sets in cluster resource group and find masters scale set
		scaleSets, err := c.vmscaleSetsClient.List(context.TODO(), rg)
		if err != nil {
			return nil, fmt.Errorf("getting cluster control plane VMSS for API ingress status: %w", err)
		}
		var vmssName string
		for _, scaleSet := range scaleSets {
			val, ok := scaleSet.Tags[TagClusterName]
			val2, ok2 := scaleSet.Tags[TagNameRolePrefix+TagRoleControlPlane]
			val3, ok3 := scaleSet.Tags[TagNameRolePrefix+TagRoleMaster]
			if ok && *val == cluster.Name && (ok2 && *val2 == "1" || ok3 && *val3 == "1") {
				vmssName = *scaleSet.Name
				break
			}

View on GitHub (pinned to 4c8573c808)

Solutions

1. Set spec.api.loadBalancer.type to a supported value (Internal or Public)
2. Edit the cluster with 'kops edit cluster' and correct the load balancer type

When it happens

Trigger: Thrown at upup/pkg/fi/cloudup/azure/azure_cloud.go:315 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/0643600c78571382. Report an issue: GitHub.