container: minor cleanup/refactor
container: minor cleanup/refactor

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

flavio/docker,Ramzec/docker,nalind/docker,kojiromike/docker,Mokolea/docker,thaJeztah/docker,mahak/docker,gnailuy/docker,paralin/docker,vdemeester/docker,jthelin/docker,thaJeztah/docker,cpuguy83/docker,flavio/docker,jimjag/docker,Ramzec/docker,konstruktoid/docker-upstream,kojiromike/docker,paralin/docker,mahak/docker,nalind/docker,thaJeztah/docker,bearstech/moby,yosifkit/docker,vdemeester/docker,nalind/docker,moul/docker,jimjag/docker,Ramzec/docker,gnailuy/docker,moul/docker,yosifkit/docker,moby/moby,yosifkit/docker,moul/docker,nawawi/docker,cpuguy83/docker,thaJeztah/docker,paralin/docker,jameszhan/docker,nawawi/docker,gnailuy/docker,moby/moby,bearstech/moby,nawawi/docker,Ramzec/docker,docker/docker,djs55/docker,kojiromike/docker,gnailuy/docker,Mokolea/docker,jimjag/docker,docker/docker,konstruktoid/docker-upstream,yosifkit/docker,AkihiroSuda/docker,jimjag/docker,cpuguy83/docker,moul/docker,AkihiroSuda/docker,Mokolea/docker,jthelin/docker,AkihiroSuda/docker,AkihiroSuda/docker,trebonian/docker,vdemeester/docker,nalind/docker,djs55/docker,mahak/docker,moby/moby,trebonian/docker,bearstech/moby,flavio/docker,nawawi/docker,trebonian/docker,djs55/docker,jameszhan/docker,moby/moby,trebonian/docker,jameszhan/docker,cpuguy83/docker,konstruktoid/docker-upstream,mahak/docker,bearstech/moby,docker/docker,Mokolea/docker,konstruktoid/docker-upstream,flavio/docker,paralin/docker