{"record":{"id":"d04556ba153c247b","repo":"kubernetes/kops","slug":"tag-split-failed-too-few-components-for-tag-q","errorCode":null,"errorMessage":"tag split failed, too few components for tag %q","messagePattern":"tag split failed, too few components for tag %q","errorType":"error_code","errorClass":null,"httpStatus":null,"severity":"error","filePath":"upup/pkg/fi/cloudup/do/cloud.go","lineNumber":477,"sourceCode":"\t\t\tInstanceGroupName: instanceGroupName,\n\t\t\tGroupType:         instanceGroupName,\n\t\t\tClusterName:       clusterName,\n\t\t\tMembers:           instanceGroupMap[instanceGroupName],\n\t\t})\n\t}\n\n\tklog.V(8).Infof(\"InstanceGroup Info = %v\", result)\n\n\treturn result, nil\n}\n\nfunc getDropletInstanceGroup(tags []string) (string, error) {\n\tfor _, tag := range tags {\n\t\tklog.V(8).Infof(\"Check tag = %s\", tag)\n\t\tif strings.Contains(strings.ToLower(tag), TagKubernetesInstanceGroup) {\n\t\t\ttagParts := strings.Split(tag, \":\")\n\t\t\tif len(tagParts) < 2 {\n\t\t\t\treturn \"\", fmt.Errorf(\"tag split failed, too few components for tag %q\", tag)\n\t\t\t}\n\t\t\treturn tagParts[1], nil\n\t\t}\n\t}\n\n\treturn \"\", fmt.Errorf(\"Didn't find k8s-instancegroup for tag %v\", tags)\n}\n\n// matchInstanceGroup filters a list of instancegroups for recognized cloud groups\nfunc matchInstanceGroup(name string, clusterName string, instancegroups []*kops.InstanceGroup) (*kops.InstanceGroup, error) {\n\tvar instancegroup *kops.InstanceGroup\n\tfor _, g := range instancegroups {\n\t\tvar groupName string\n\n\t\tswitch {\n\t\tcase g.Spec.Role.HasControlPlane(),\n\t\t\tg.Spec.Role.HasNode():\n\t\t\tgroupName = clusterName + \"-\" + g.ObjectMeta.Name","sourceCodeStart":459,"sourceCodeEnd":495,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/upup/pkg/fi/cloudup/do/cloud.go#L459-L495","documentation":"Format-validation guard in getDropletInstanceGroup: a droplet tag containing the k8s-instancegroup marker was found, but splitting on ':' yielded fewer than two parts, so the instance group name component is missing. Indicates a malformed/foreign tag on the droplet.","triggerScenarios":"Thrown at upup/pkg/fi/cloudup/do/cloud.go:477 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Fix the droplet tag to the form k8s-instancegroup:<name>","Remove stray tags that merely contain the marker substring","Re-run the operation"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"4c8573c808a73d578c5eadc86d410646ea0b0d73","analyzedAt":"2026-09-05T04:13:19.212Z","contentChangedAt":"2026-09-05T04:13:19.212Z","schemaVersion":2},"datasetVersion":"2026-09-12T07:17:12.445Z"}