I don't have a list handy but can throw an example
a simple thing that was missing was managing /etc/resolv.conf (see rkt 1.0 release notes that this was added so now kubernetes can take advantage of it going forward).
Without it, one either has to jump through some hoops (not impossible) to manage it yourself or your system just wont work (i.e. trying using GCE metadata server from within GCE without being setup for GCE's dns server).
a simple thing that was missing was managing /etc/resolv.conf (see rkt 1.0 release notes that this was added so now kubernetes can take advantage of it going forward).
Without it, one either has to jump through some hoops (not impossible) to manage it yourself or your system just wont work (i.e. trying using GCE metadata server from within GCE without being setup for GCE's dns server).