Comment 3 for bug 1820325

Looks like we're killing the maridb service, which leaves around old state, preventing the upgrade.

docker stop -t 60 mariadb

sudo journalctl -u docker | tail -n 1

Container c2a33c47667f80452ab18fe10c1564309955db0e6b4cb765348371746f11a72d failed to exit within 60 seconds of signal 15 - using the force"