{"record":{"id":"92eed4edebf1c474","repo":"kubernetes/kops","slug":"unable-to-parse-q-as-a-url-v","errorCode":null,"errorMessage":"unable to parse %q as a url: %v","messagePattern":"unable to parse %q as a url: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/nodemodel/wellknownassets/kopsassets.go","lineNumber":53,"sourceCode":"var kopsBaseURL *url.URL\n\n// BaseURL returns the base url for the distribution of kops - in particular for nodeup & docker images\nfunc BaseURL() (*url.URL, error) {\n\t// returning cached value\n\t// Avoid repeated logging\n\tif kopsBaseURL != nil {\n\t\tklog.V(8).Infof(\"Using cached kopsBaseUrl url: %q\", kopsBaseURL.String())\n\t\treturn copyBaseURL(kopsBaseURL)\n\t}\n\n\tbaseURLString := os.Getenv(\"KOPS_BASE_URL\")\n\tvar err error\n\tif baseURLString == \"\" {\n\t\tbaseURLString = fmt.Sprintf(defaultKopsBaseURL, kops.Version)\n\t\tklog.V(8).Infof(\"Using default base url: %q\", baseURLString)\n\t\tkopsBaseURL, err = url.Parse(baseURLString)\n\t\tif err != nil {\n\t\t\treturn nil, fmt.Errorf(\"unable to parse %q as a url: %v\", baseURLString, err)\n\t\t}\n\t} else {\n\t\tkopsBaseURL, err = url.Parse(baseURLString)\n\t\tif err != nil {\n\t\t\treturn nil, fmt.Errorf(\"unable to parse env var KOPS_BASE_URL %q as a url: %v\", baseURLString, err)\n\t\t}\n\t\tklog.Warningf(\"Using base url from env var: KOPS_BASE_URL=%q\", baseURLString)\n\n\t\t// The last path component of KOPS_BASE_URL is the artifact version.\n\t\t// Override kops.Version so image tags in manifests match the sideloaded images.\n\t\tif v := path.Base(kopsBaseURL.Path); v != \"\" && v != \".\" && v != \"/\" && v != kops.Version {\n\t\t\tklog.Infof(\"Overriding kops version from KOPS_BASE_URL: %q -> %q\", kops.Version, v)\n\t\t\tkops.Version = v\n\t\t}\n\t}\n\n\treturn copyBaseURL(kopsBaseURL)\n}","sourceCodeStart":35,"sourceCodeEnd":71,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/pkg/nodemodel/wellknownassets/kopsassets.go#L35-L71","documentation":"The default kOps distribution base URL (built from the kOps version) failed url.Parse while resolving nodeup/docker-asset locations. As with any malformed constant, this indicates a broken build/default rather than user input.","triggerScenarios":"Thrown at pkg/nodemodel/wellknownassets/kopsassets.go:53 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Upgrade/reinstall the kOps binary from official distribution","File a bug if a released version carries an invalid default base URL"],"exampleFix":null,"handlingStrategy":"try-catch","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"}