Create a ephemeral dev container to facilitate testing of
populate_inventory. It can be created, tweeked in the admin interface,
files updated in admin's populate_inventory, then redeployed to deal
with those changes.
A branch based one will need to be created to so we can do this work
without polluting the master branch.
This improves the administrative workflow of deploying updated images to
the k8s cluster. Still tag latest however, as that's important to
old-workflow.
Would be good to block this and have it fail on a db migration so it
doesn't happen accidently, and make the deployer deal with it.
