Gracefully handle containers that exist on launch.
Gracefully handle containers that exist on launch.

cannin/tmpnb,captainsafia/tmpnb,willjharmer/tmpnb,willjharmer/tmpnb,rgbkrk/tmpnb,parente/tmpnb,willjharmer/tmpnb,cannin/tmpnb,ianabc/tmpnb,captainsafia/tmpnb,zischwartz/tmpnb,iamjakob/tmpnb,jupyter/tmpnb,marscher/tmpnb,parente/tmpnb,jupyter/tmpnb,zischwartz/tmpnb,iamjakob/tmpnb,ianabc/tmpnb,betatim/tmpnb,captainsafia/tmpnb,marscher/tmpnb,marscher/tmpnb,jupyter/tmpnb,marscher/tmpnb,rgbkrk/tmpnb,iamjakob/tmpnb,zischwartz/tmpnb,parente/tmpnb,malev/tmpnb,ianabc/tmpnb,parente/tmpnb,ianabc/tmpnb,cannin/tmpnb,malev/tmpnb,betatim/tmpnb,rgbkrk/tmpnb,betatim/tmpnb,malev/tmpnb,cannin/tmpnb,jupyter/tmpnb