kubernetes/kops · error

error creating temp file in %q: %w

Error message

error creating temp file in %q: %w

What it means

Thrown by writeFileContents when os.CreateTemp fails in the file's destination directory. Typically caused by the directory not existing at temp-file time, no writable permission on it, or exhaustion of inodes/files on the filesystem.

Source

Thrown at upup/pkg/fi/files.go:69

	}

	return nil
}

func writeFileContents(destPath string, src Resource, fileMode os.FileMode) error {
	klog.Infof("Writing file %q", destPath)

	in, err := src.Open()
	if err != nil {
		return fmt.Errorf("error opening source resource for file %q: %v", destPath, err)
	}
	defer SafeClose(in)

	dir := filepath.Dir(destPath)

	tempFile, err := os.CreateTemp(dir, ".writefile")
	if err != nil {
		return fmt.Errorf("error creating temp file in %q: %w", dir, err)
	}

	closeTempFile := true
	deleteTempFile := true
	defer func() {
		if closeTempFile {
			if err := tempFile.Close(); err != nil {
				klog.Warningf("error closing tempfile %q: %v", tempFile.Name(), err)
			}
		}
		if deleteTempFile {
			if err := os.Remove(tempFile.Name()); err != nil {
				klog.Warningf("error removing tempfile %q: %v", tempFile.Name(), err)
			}
		}
	}()

	if _, err := io.Copy(tempFile, in); err != nil {

View on GitHub (pinned to 4c8573c808)

Solutions

1. Verify the destination directory exists and is writable by the current user
2. Check disk/inode availability on the target filesystem
3. Ensure an earlier failure did not remove the directory between MkdirAll and CreateTemp

When it happens

Trigger: Thrown at upup/pkg/fi/files.go:69 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/5eca31815f89d169. Report an issue: GitHub.