Revert "Merge pull request #6839 from guardian/revert-6810-kill-old-containers"

This reverts commit c28ab72d450011cd90aa0368c04017118562371e, reversing
changes made to 6b6820229b8155e47ab6892cd5e5bbf96cc85b19.
Add back fixedcontainers case inside FrontCollection
Merge pull request #6843 from guardian/kill-old-containers

Kill old containers (Take 2)