Jenkinsfile: inline janky steps, and move validate to separate stage
Jenkinsfile: inline janky steps, and move validate to separate stage

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

jameszhan/docker,ibuildthecloud/docker,nalind/docker,kolyshkin/moby,thaJeztah/docker,yosifkit/docker,nawawi/docker,paralin/docker,dims/docker,justincormack/docker,Ramzec/docker,gnailuy/docker,pradipd/moby,yongtang/docker,paralin/docker,paralin/docker,trebonian/docker,kojiromike/docker,estesp/docker,dims/docker,vdemeester/docker,moul/docker,kolyshkin/moby,mahak/docker,jameszhan/docker,jimjag/docker,pradipd/moby,nawawi/docker,moby/moby,trebonian/docker,mahak/docker,nawawi/docker,ibuildthecloud/docker,flavio/docker,gnailuy/docker,cpuguy83/docker,ibuildthecloud/docker,Ramzec/docker,jvanz/docker,nalind/docker,moul/docker,bearstech/moby,yosifkit/docker,tmp6154/docker,kojiromike/docker,docker/docker,Ramzec/docker,djs55/docker,pradipd/moby,bearstech/moby,SvenDowideit/docker,bearstech/moby,bearstech/moby,vdemeester/docker,vdemeester/docker,docker/docker,ibuildthecloud/docker,jimjag/docker,Mokolea/docker,gnailuy/docker,yosifkit/docker,Ramzec/docker,jthelin/docker,nawawi/docker,moul/docker,djs55/docker,flavio/docker,estesp/docker,tmp6154/docker,Mokolea/docker,moby/moby,nalind/docker,justincormack/docker,yongtang/docker,konstruktoid/docker-upstream,trebonian/docker,konstruktoid/docker-1,jvanz/docker,flavio/docker,justincormack/docker,flavio/docker,moby/moby,AkihiroSuda/docker,yongtang/docker,thaJeztah/docker,tmp6154/docker,gnailuy/docker,jameszhan/docker,konstruktoid/docker-1,SvenDowideit/docker,AkihiroSuda/docker,jvanz/docker,jimjag/docker,AkihiroSuda/docker,dims/docker,thaJeztah/docker,konstruktoid/docker-upstream,jimjag/docker,djs55/docker,ibuildthecloud/docker,mahak/docker,jthelin/docker,Mokolea/docker,cpuguy83/docker,yosifkit/docker,estesp/docker,cpuguy83/docker,moul/docker,konstruktoid/docker-1,SvenDowideit/docker,kolyshkin/moby,moby/moby,konstruktoid/docker-upstream,konstruktoid/docker-upstream,kojiromike/docker,mahak/docker,docker/docker,thaJeztah/docker,Mokolea/docker,paralin/docker,nalind/docker,trebonian/docker,cpuguy83/docker,AkihiroSuda/docker