{"record":{"id":"7edd51d6f7c2bcca","repo":"kubernetes/kops","slug":"error-building-dns-provider-v","errorCode":null,"errorMessage":"error building DNS provider: %v","messagePattern":"error building DNS provider: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"upup/pkg/fi/cloudup/dns.go","lineNumber":49,"sourceCode":"\tkopsdns \"k8s.io/kops/pkg/dns\"\n\t\"k8s.io/kops/upup/pkg/fi\"\n)\n\nconst (\n\tPlaceholderTTL = 10\n\t// DigitalOcean's DNS servers require a certain minimum TTL (it's 30), keeping 60 here.\n\tPlaceholderTTLDigitialOcean = 60\n)\n\ntype recordKey struct {\n\thostname string\n\trrsType  rrstype.RrsType\n}\n\nfunc findZone(cluster *kops.Cluster, cloud fi.Cloud) (dnsprovider.Zone, error) {\n\tdns, err := cloud.DNS()\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error building DNS provider: %v\", err)\n\t}\n\tif dns == nil {\n\t\treturn nil, nil\n\t}\n\n\tzonesProvider, ok := dns.Zones()\n\tif !ok {\n\t\treturn nil, fmt.Errorf(\"error getting DNS zones provider\")\n\t}\n\n\tzones, err := zonesProvider.List()\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error listing DNS zones: %v\", err)\n\t}\n\n\tvar matches []dnsprovider.Zone\n\tfindName := strings.TrimSuffix(cluster.Spec.DNSZone, \".\")\n\tfor _, zone := range zones {","sourceCodeStart":31,"sourceCodeEnd":67,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/upup/pkg/fi/cloudup/dns.go#L31-L67","documentation":"findZone obtains a DNS provider from the fi.Cloud via cloud.DNS(). If the cloud implementation cannot build its DNS provider (misconfigured DNS integration, unsupported provider combination), the error is wrapped as 'error building DNS provider' and zone lookup fails during cluster validation or DNS pre-creation.","triggerScenarios":"validateDNS or precreateDNS calling findZone on a cloud whose DNS() returns an error — e.g. Azure/GCP/OpenStack cloud with DNS support not wired, or credentials/clients failing to initialize for the DNS service.","commonSituations":"Cloud provider implementations where DNS() is unimplemented or fails client initialization; missing cloud credentials preventing DNS client construction; using a cloud where kOps DNS integration is disabled.","solutions":["Check the wrapped cause (%v) to see why cloud.DNS() failed and fix credentials/config for the DNS provider","Ensure the cluster's cloud provider supports the configured DNS setup (e.g. route53 for AWS)","If the cloud intentionally has no DNS support, configure a supported dnsZone/provider or skip DNS-dependent flow","Update kOps if your provider's DNS support was added later than your binary"],"exampleFix":"// before (GCP cluster lacking DNS config)\nspec:\n  dnsZone: \"\"\n// after\nspec:\n  dnsZone: \"example-gcp-zone\"","handlingStrategy":"try-catch","validationCode":"// Verify cloud DNS support before running cluster ops\nif cloud.ProviderID() == kops.CloudProviderAzure && cluster.Spec.DNSZone == \"\" {\n    return errors.New(\"dnsZone must be set for this provider\")\n}","typeGuard":null,"tryCatchPattern":"zone, err := findZone(cluster, cloud)\nif err != nil {\n    return fmt.Errorf(\"DNS setup failed: %w\", err) // inspect wrapped cause for cloud.DNS() failure\n}","preventionTips":["Keep cloud credentials valid for DNS services","Match DNS provider support to the chosen cloud","Check kOps release notes for provider DNS support changes"],"tags":["dns","cloud-provider","configuration"],"backgroundTag":"dns-provider-init-failed","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"}