{"record":{"id":"dd65f17565cefa24","repo":"kubernetes/kops","slug":"error-listing-networks-v-dd65f1","errorCode":null,"errorMessage":"error listing networks: %v","messagePattern":"error listing networks: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"upup/pkg/fi/cloudup/openstack/network.go","lineNumber":135,"sourceCode":"\t\treturn network, err\n\t} else if done {\n\t\treturn network, nil\n\t} else {\n\t\treturn network, wait.ErrWaitTimeout\n\t}\n}\n\nfunc (c *openstackCloud) ListNetworks(opt networks.ListOptsBuilder) ([]networks.Network, error) {\n\treturn listNetworks(c, opt)\n}\n\nfunc listNetworks(c OpenstackCloud, opt networks.ListOptsBuilder) ([]networks.Network, error) {\n\tvar ns []networks.Network\n\n\tdone, err := vfs.RetryWithBackoff(readBackoff, func() (bool, error) {\n\t\tallPages, err := networks.List(c.NetworkingClient(), opt).AllPages(context.TODO())\n\t\tif err != nil {\n\t\t\treturn false, fmt.Errorf(\"error listing networks: %v\", err)\n\t\t}\n\n\t\tr, err := networks.ExtractNetworks(allPages)\n\t\tif err != nil {\n\t\t\treturn false, fmt.Errorf(\"error extracting networks from pages: %v\", err)\n\t\t}\n\t\tns = r\n\t\treturn true, nil\n\t})\n\tif err != nil {\n\t\treturn ns, err\n\t} else if done {\n\t\treturn ns, nil\n\t} else {\n\t\treturn ns, wait.ErrWaitTimeout\n\t}\n}\n","sourceCodeStart":117,"sourceCodeEnd":153,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/upup/pkg/fi/cloudup/openstack/network.go#L117-L153","documentation":"The Neutron network list call failed while fetching all pages. Reads use retry-with-backoff, so this error indicates a persistent API failure such as credentials, endpoint, or service health.","triggerScenarios":"networks.List(...).AllPages fails: bad ListOpts filter causing API 400, auth failure, or Neutron endpoint error/timeout during pagination.","commonSituations":"Invalid or unsupported filter fields in networks.ListOpts for the deployed Neutron version; token expiry mid-listing; Neutron service outage.","solutions":[],"exampleFix":"// before\nopt := networks.ListOpts{\"bad_field\": \"x\"}\n// after\nopt := networks.ListOpts{Name: \"my-network\"}","handlingStrategy":"retry","validationCode":"// use only documented Neutron list filters\nopt := networks.ListOpts{Name: expectedName} // avoid non-standard fields","typeGuard":null,"tryCatchPattern":"ns, err := listNetworks(c, opt)\nif err != nil {\n    var gerr gophercloud.ErrUnexpectedResponseCode\n    if errors.As(err, &gerr) && gerr.Actual == 400 {\n        return nil, fmt.Errorf(\"invalid ListOpts for this Neutron version: %w\", err)\n    }\n    return nil, err\n}","preventionTips":["Keep Gophercloud version compatible with the target OpenStack release","Use only standard Neutron filter fields in ListOpts","Handle token expiry in long sessions (re-authenticate)","Monitor Neutron service health"],"tags":["openstack","neutron","network","list","pagination"],"backgroundTag":"openstack-api-error","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"}