[ironic] [tripleo] IPA images without RPM and YUM/DNF?

(adding TripleO because of potential effect) Hi all, I'm working on making ironic-python-agent images smaller than they currently are. The proposed patches already reduce the default image (as built by IPA-builder) size from around 420 MiB to around 380 MiB. My next idea is to get rid of RPM and YUM databases (in case of a CentOS/RHEL image). They amount for nearly 100 MiB of the uncompressed image: $ du -sh var/lib/rpm 91M var/lib/rpm $ du -sh var/lib/yum 6.6M var/lib/yum How important for anyone is the ability to install/inspect packages inside a ramdisk? Dmitry