{"record":{"id":"9b08f9139578279e","repo":"GoogleContainerTools/skaffold","slug":"reading-config-file-w","errorCode":null,"errorMessage":"reading config file: %w","messagePattern":"reading config file: %w","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"cmd/skaffold/app/cmd/fix.go","lineNumber":126,"sourceCode":"\t\t\tcfgs = append(cfgs, &parser.SkaffoldConfigEntry{\n\t\t\t\tSkaffoldConfig: cpCfg.(*latest.SkaffoldConfig),\n\t\t\t\tSourceFile:     configFile,\n\t\t\t\tIsRootConfig:   true})\n\t\t}\n\t\tif err := validation.Process(cfgs, validation.GetValidationOpts(opts)); err != nil {\n\t\t\treturn fmt.Errorf(\"validating upgraded config: %w\", err)\n\t\t}\n\t}\n\tnewCfg, err := yaml.MarshalWithSeparator(upgraded)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"marshaling new config: %w\", err)\n\t}\n\tif outFile != \"\" {\n\t\tvar writeErr error\n\t\tif overwrite {\n\t\t\toldCfg, readErr := os.ReadFile(configFile)\n\t\t\tif readErr != nil {\n\t\t\t\treturn fmt.Errorf(\"reading config file: %w\", readErr)\n\t\t\t}\n\t\t\tnewFile := fmt.Sprintf(\"%s.v2\", outFile)\n\n\t\t\twriteErr = os.WriteFile(newFile, oldCfg, 0644)\n\t\t\tif writeErr == nil {\n\t\t\t\toutput.Default.Fprintln(out, \"Backed up previous skaffold.yaml at \", newFile)\n\t\t\t}\n\t\t}\n\t\tif err := os.WriteFile(outFile, newCfg, 0644); err != nil {\n\t\t\treturn fmt.Errorf(\"writing config file: %w\", err)\n\t\t}\n\t\toutput.Default.Fprintf(out, \"New config at version %s generated and written to %s\\n\", toVersion, outFile)\n\t\tif writeErr != nil {\n\t\t\toutput.Yellow.Fprintln(out, \"Error moving old config. Dumping old v2 config on stdout:\")\n\t\t\toutput.Default.Fprintln(out, getOldConfigYaml(versionedCfgs))\n\t\t}\n\t} else {\n\t\tout.Write(newCfg)","sourceCodeStart":108,"sourceCodeEnd":144,"githubUrl":"https://github.com/GoogleContainerTools/skaffold/blob/a1189de023efc32d4b8e11f395acc678aa555011/cmd/skaffold/app/cmd/fix.go#L108-L144","documentation":"When `skaffold fix --overwrite` writes the upgraded config, it first backs up the existing file by reading it with os.ReadFile. This error wraps a failure to read the current skaffold.yaml. It means the source config file could not be read at backup time — typically a permissions problem or the file disappeared between parse and backup.","triggerScenarios":"`os.ReadFile(configFile)` fails during the overwrite branch of `skaffold fix --overwrite` — e.g. the -f flag points to a file that no longer exists, or the process lacks read permission on it.","commonSituations":"Running skaffold as a different user without read access to skaffold.yaml; pointing `-f` at a path with a typo that somehow passed earlier parsing; deleting/moving the file while fix runs.","solutions":["Verify the file exists and is readable: `ls -l skaffold.yaml` (or the path passed to -f).","Fix permissions so the current user can read the file (`chmod u+r`).","Re-check the `-f`/`--filename` flag value for typos.","Skip the overwrite backup path by writing to a new file with `--output` instead of `--overwrite`."],"exampleFix":"// before\nskaffold fix --overwrite -f ./skafflod.yaml\n// after: correct path with read permission\nchmod u+r skaffold.yaml\nskaffold fix --overwrite -f ./skaffold.yaml\n","handlingStrategy":"validation","validationCode":"// Pre-check readability of the config file before invoking skaffold fix --overwrite\nconst fs = require('fs');\nconst path = 'skaffold.yaml';\nfs.accessSync(path, fs.constants.R_OK); // throws EACCES/ENOENT early with a clear message\nif (!fs.statSync(path).isFile()) throw new Error(`${path} is not a regular file`);","typeGuard":null,"tryCatchPattern":"try {\n  execFileSync('skaffold', ['fix', '--overwrite', '-f', configPath]);\n} catch (e) {\n  const msg = e.stderr?.toString() ?? '';\n  if (msg.includes('reading config file')) {\n    console.error(`Cannot read ${configPath}: check existence and read permissions.`);\n  } else throw e;\n}","preventionTips":["Always verify the -f path exists and is readable in scripts before calling fix.","Run skaffold as the same user that owns the workspace files.","Avoid moving/deleting skaffold.yaml while skaffold commands run.","Prefer `--output <newfile>` over `--overwrite` when the source file's permissions are uncertain."],"tags":["skaffold","file-io","permissions","config"],"backgroundTag":"file-read-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"}