images.py 文件源码

def image_version(self, image_name, image_tag):
        """
        Returns the Docker image hash of the requested image and tag, or
        raises ImageNotFoundException if it's not available on the host.
        """
        if image_tag == "local":
            image_tag = "latest"
        try:
            docker_info = self.host.client.inspect_image("{}:{}".format(image_name, image_tag))
            return docker_info['Id']
        except NotFound:
            # TODO: Maybe auto-build if we can?
            raise ImageNotFoundException(
                "Cannot find image {}:{}".format(image_name, image_tag),
                image=image_name,
                image_tag=image_tag,
            )