def _update_base(self, image):
        ''' update a base based on an image name, meaning detecting a particular
            registry and if necessary, updating the self.base. When the image
            name is parsed, the base will be given to remove the registry.
        '''
        base = None

        # Google Container Cloud
        if "gcr.io" in image:
            base = 'gcr.io'
            self._set_base(default_base=base)
            self._update_secrets()

        return base
update a base based on an image name, meaning detecting a particular
            registry and if necessary, updating the self.base. When the image
            name is parsed, the base will be given to remove the registry.