{"record":{"id":"d4bb748cfa5231d0","repo":"kubernetes/kops","slug":"error-building-k8s-dns-provider-v","errorCode":null,"errorMessage":"error building (k8s) DNS provider: %v","messagePattern":"error building \\(k8s\\) DNS provider: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"upup/pkg/fi/cloudup/awsup/aws_cloud.go","lineNumber":1845,"sourceCode":"\t\t\treturn fmt.Errorf(\"error Zone is not a recognized AZ: %q (check you have specified a valid zone?)\", zone)\n\t\t}\n\n\t\tfor _, message := range z.Messages {\n\t\t\tklog.Warningf(\"Zone %q has message: %q\", zone, aws.ToString(message.Message))\n\t\t}\n\n\t\tif z.State != ec2types.AvailabilityZoneStateAvailable {\n\t\t\tklog.Warningf(\"Zone %q has state %q\", zone, z.State)\n\t\t}\n\t}\n\n\treturn nil\n}\n\nfunc (c *awsCloudImplementation) DNS() (dnsprovider.Interface, error) {\n\tprovider, err := dnsprovider.GetDnsProvider(dnsproviderroute53.ProviderName, nil)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error building (k8s) DNS provider: %v\", err)\n\t}\n\treturn provider, nil\n}\n\nfunc (c *awsCloudImplementation) EC2() awsinterfaces.EC2API {\n\treturn c.ec2\n}\n\nfunc (c *awsCloudImplementation) IAM() awsinterfaces.IAMAPI {\n\treturn c.iam\n}\n\nfunc (c *awsCloudImplementation) ELB() awsinterfaces.ELBAPI {\n\treturn c.elb\n}\n\nfunc (c *awsCloudImplementation) ELBV2() awsinterfaces.ELBV2API {\n\treturn c.elbv2","sourceCodeStart":1827,"sourceCodeEnd":1863,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/upup/pkg/fi/cloudup/awsup/aws_cloud.go#L1827-L1863","documentation":"Returned by awsCloudImplementation.DNS (aws_cloud.go:1845) when dnsprovider.GetDnsProvider fails to instantiate the route53 DNS provider used by kops' DNS controller integration. The wrapped err carries the provider-side failure.","triggerScenarios":"dnsprovider.GetDnsProvider(route53.ProviderName, nil) returns an error — typically the route53 provider package fails to initialize its client, e.g. because AWS credentials/config cannot be loaded when creating the underlying Route53 client.","commonSituations":"Missing or malformed AWS config (no credentials, bad shared config file); build/dependency issue where the route53 dnsprovider plugin is not registered; nil config accepted by the provider but SDK config creation fails in the ambient environment.","solutions":["Read the wrapped error; it usually points at AWS config/credential loading — fix credentials/env first","Ensure valid AWS credentials are available to the kops process (env vars, profile, or instance role)","Verify the build includes the route53 dnsprovider dependency (not stripped by Go module pruning) and dependencies are intact via `make gomod`","Retry after environment fixes; the error is raised at provider construction, so no cluster changes are partially applied"],"exampleFix":"// before\nkops create cluster ...   # no AWS credentials in env\n// after\nexport AWS_PROFILE=default && kops create cluster ...","handlingStrategy":"try-catch","validationCode":"// Ensure AWS config loads before constructing the DNS provider\nif _, err := config.LoadDefaultConfig(ctx); err != nil {\n\treturn fmt.Errorf(\"AWS config unavailable for route53 provider: %w\", err)\n}","typeGuard":null,"tryCatchPattern":"provider, err := cloud.DNS()\nif err != nil {\n\t// log wrapped cause; fix credentials/config then retry — nothing was mutated yet\n\treturn fmt.Errorf(\"dns provider init failed: %w\", err)\n}","preventionTips":["Guarantee credentials exist in the kops process environment (env vars, profile, or instance role)","Keep the route53 dnsprovider dependency in go.mod so it is not pruned","Run `make gomod` after dependency changes and smoke-test `kops replace/create` early"],"tags":["aws","route53","dns","provider-init"],"backgroundTag":"provider-initialization-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"}