if err != nil {
		return "", fmt.Errorf("yamlToJSON error in base: %s\n%s", err, mainYaml)
	}

	patchYaml := tmpl.MustEvaluate(`
spec:
  template:
    spec:
      imagePullSecrets:
      - name: {{.pullSecret}}  	
`, map[string]string{"pullSecret": pullSecret})

	overlayYaml, err := yaml.YAMLToJSON([]byte(patchYaml))
	if err != nil {
		return "", fmt.Errorf("yamlToJSON error in overlay: %s\n%s", err, overlayYaml)
	}