Image Builder does not keep the reference to the manifest list, putting actual image references into the image and container store (see the COMPOSER-1898 linked bug)
This problem has been resolved in the latest version of Image Builder. Need to make sure it works and document the required changes if necessary.

MicroShift version agnostic
Image Builder on RHEL 8.7.2+ 
Note: RHEL 9.1+ does not yet have the necessary functionality to support OCP container embedding

100%

1. Run scripts/image-builder/build.sh with `-embeded_container` option
2. Boot the resulting ISO in the VM without Internet access
3. Watch pods not coming up due to not being able to use locally stored container images

MicroShift not starting in the environment without Internet access

MicroShift starting in the environment without Internet access

See the COMPOSER-1898 linked issue