{"record":{"id":"ccc62e91f368ef32","repo":"kubernetes/kops","slug":"error-opening-source-resource-for-file-q-v","errorCode":null,"errorMessage":"error opening source resource for file %q: %v","messagePattern":"error opening source resource for file %q: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"upup/pkg/fi/files.go","lineNumber":61,"sourceCode":"\t_, err = EnsureFileMode(destPath, fileMode)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\t_, err = EnsureFileOwner(destPath, owner, group)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\treturn nil\n}\n\nfunc writeFileContents(destPath string, src Resource, fileMode os.FileMode) error {\n\tklog.Infof(\"Writing file %q\", destPath)\n\n\tin, err := src.Open()\n\tif err != nil {\n\t\treturn fmt.Errorf(\"error opening source resource for file %q: %v\", destPath, err)\n\t}\n\tdefer SafeClose(in)\n\n\tdir := filepath.Dir(destPath)\n\n\ttempFile, err := os.CreateTemp(dir, \".writefile\")\n\tif err != nil {\n\t\treturn fmt.Errorf(\"error creating temp file in %q: %w\", dir, err)\n\t}\n\n\tcloseTempFile := true\n\tdeleteTempFile := true\n\tdefer func() {\n\t\tif closeTempFile {\n\t\t\tif err := tempFile.Close(); err != nil {\n\t\t\t\tklog.Warningf(\"error closing tempfile %q: %v\", tempFile.Name(), err)\n\t\t\t}\n\t\t}","sourceCodeStart":43,"sourceCodeEnd":79,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/upup/pkg/fi/files.go#L43-L79","documentation":"Thrown by writeFileContents when src.Open() fails on the Resource supplying the file's contents. The resource could not produce a reader — e.g. a remote URL that cannot be fetched, a missing source file, or an embedded resource that failed to load. The destination path is only context; the failure is on the source side.","triggerScenarios":"Thrown at upup/pkg/fi/files.go:61 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Inspect the underlying resource error: for URL resources check network/HTTP status, for file resources check existence and permissions","Ensure any secrets or generated resources this file depends on were created earlier in the task graph","Fix or replace the source resource definition that yields the contents"],"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":"2026-09-12T12:17:11.808Z"}