but a new problem is: if i use nova meta to update the metadata, i can access the new metadata by calling curl 169.254.169.254/openstack/latest/meta_data.json, but it doesnot change the configdrive in /dev/sr0
also, i have read the nova latest code, and found no code implement this. when i call nova meta <server-id> set key=value, it just update the database but doesn't update the disk.config