prune docker's dangling images every build
prune docker's dangling images every build

DXCanas/kolibri,lyw07/kolibri,lyw07/kolibri,indirectlylit/kolibri,DXCanas/kolibri,lyw07/kolibri,lyw07/kolibri,christianmemije/kolibri,mrpau/kolibri,learningequality/kolibri,learningequality/kolibri,indirectlylit/kolibri,christianmemije/kolibri,mrpau/kolibri,jonboiser/kolibri,jonboiser/kolibri,benjaoming/kolibri,christianmemije/kolibri,mrpau/kolibri,benjaoming/kolibri,DXCanas/kolibri,mrpau/kolibri,DXCanas/kolibri,jonboiser/kolibri,christianmemije/kolibri,benjaoming/kolibri,benjaoming/kolibri,indirectlylit/kolibri,learningequality/kolibri,jonboiser/kolibri,learningequality/kolibri,indirectlylit/kolibri