code: func WithConfigPath(s string) source.Option {
  	return func(o *source.Options) {
  		if o.Context == nil {
  			o.Context = context.Background()
  		}
  		o.Context = context.WithValue(o.Context, configPathKey{}, s)
  	}
  }
docs: // WithConfigPath option for setting a custom path to kubeconfig