{"record":{"id":"3ee5a0a56f46ca12","repo":"GoogleContainerTools/skaffold","slug":"writing-config-file-w-3ee5a0","errorCode":null,"errorMessage":"writing config file: %w","messagePattern":"writing config file: %w","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/skaffold/inspect/helper.go","lineNumber":86,"sourceCode":"\t\t\tbreak\n\t\t}\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"unable to parse YAML: %w\", err)\n\t\t}\n\t\t// parsed content is a document so the `Content` slice has exactly one element\n\t\tsl = append(sl, parsed.Content[0])\n\t}\n\n\tfor i, cfg := range cfgs {\n\t\tsl[cfg.SourceIndex] = cfgs[i].SkaffoldConfig\n\t}\n\n\tnewCfgs, err := yaml.MarshalWithSeparator(sl)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"marshaling new configs: %w\", err)\n\t}\n\tif err := WriteFileFunc(filename, newCfgs); err != nil {\n\t\treturn fmt.Errorf(\"writing config file: %w\", err)\n\t}\n\treturn nil\n}\n","sourceCodeStart":68,"sourceCodeEnd":90,"githubUrl":"https://github.com/GoogleContainerTools/skaffold/blob/a1189de023efc32d4b8e11f395acc678aa555011/pkg/skaffold/inspect/helper.go#L68-L90","documentation":"marshalConfigSetForFile finishes by writing the re-marshaled YAML back to disk via WriteFileFunc. If that write fails, \"writing config file: %w\" wraps the underlying OS error. The modification succeeded in memory but could not be persisted.","triggerScenarios":"Running a `skaffold inspect` modify command where the target file is read-only, the directory doesn't exist, disk is full, or permission is denied.","commonSituations":"Read-only mounted filesystem or container, file owned by another user, immutable file, or out of disk space while updating skaffold.yaml.","solutions":["Check permissions on the file and fix them: `chmod u+w skaffold.yaml` or run as the file owner.","Verify disk space (`df -h`) and free space if the disk is full.","Confirm you are pointing --filename at a writable path, not a read-only mount or installed artifact."],"exampleFix":"// before\nskaffold inspect modify-port-forward-resources --filename /ro/skaffold.yaml\n// after\nchmod u+w skaffold.yaml && skaffold inspect modify-port-forward-resources --filename skaffold.yaml","handlingStrategy":"validation","validationCode":"fi, err := os.Stat(filename)\nif err != nil { return err }\nif fi.Mode().Perm()&0200 == 0 {\n    return fmt.Errorf(\"%s is not writable\", filename)\n}","typeGuard":null,"tryCatchPattern":"if err := inspectModify(); err != nil {\n    if strings.Contains(err.Error(), \"writing config file\") {\n        // check permissions/disk and retry with a writable path\n    }\n}","preventionTips":["Check file writability before running modify commands","Avoid pointing --filename at read-only mounts","Monitor disk space in CI runners"],"tags":["filesystem","permissions","config-file"],"backgroundTag":"file-write-permission-denied","analyzedSha":"a1189de023efc32d4b8e11f395acc678aa555011","analyzedAt":"2026-09-05T12:09:27.064Z","contentChangedAt":"2026-09-05T12:09:27.064Z","schemaVersion":2},"datasetVersion":"2026-09-12T17:17:11.597Z"}