Support container: true in treefile
Support container: true in treefile

If this is set we don't do anything special for kernel or /boot, as
such things are not needed when running in a container.

tmp-user/rpm-ostree,tmp-user/rpm-ostree,tmp-user/rpm-ostree,mdshuai/rpm-ostree,mdshuai/rpm-ostree,tmp-user/rpm-ostree,mdshuai/rpm-ostree,mdshuai/rpm-ostree