Cloud image metadata for LXD

Hello there,

I am following this document “Juju | Cloud image metadata” to use juju in offline mode.

However, this document focuses on OpenStack Cloud, not for LXD environment. I want to know is there any guide for Cloud image metadata for LXD with command sudo juju metadata generate-image.

Because my environment is restrict internet access, so I can not access internet even with proxy, so creating cloud image metadata can help me a lot.

Thank for helping me ^^