imageinspector.py 文件源码

def get_layer_size(self, layer_hash):
        """
        Attempt to return the size of the given layer
        """
        url = "{base_url}/v2/{name}/blobs/{layer_hash}".format(
              base_url=self.base_url,
              name=self.repository_name,
              layer_hash=layer_hash)
        headers = {}
        if self.token is not None:
            headers["Authorization"] = "Bearer %s" % self.token
        r = requests.head(url, headers=headers, allow_redirects=True, timeout=(3.05,5))
        r.raise_for_status()
        if "content-length" in r.headers:
            self.layer_sizes[layer_hash] = int(r.headers["content-length"])
        else:
            self.layer_sizes[layer_hash] = None
        return self.layer_sizes[layer_hash]