post-processor/docker-import: refactor
post-processor/docker-import: refactor

/cc @mmckeen - Did a refactor here, CC'd in case you're curious
or want to learn :)

eranchetz/packer,tsmolka/packer,icnocop/packer,yoctocloud/packer,umang1912/packer,trumant/packer,burnzy/packer,ephemeralsnow/packer,sobrinho/packer,rk295/packer,legal90/packer,vtolstov/packer,gildas/packer-hyperv,tsmolka/packer,qur/packer,smaato/packer,burnzy/packer,routelastresort/packer,grubernaut/packer,atlassian/packer,jamesbishopp/packer,cyberhouse/packer,esemplare/packer,ricardclau/packer,tb3088/packer,monkeylittleinc/packer,dave2/packer,AlphaStaxLLC/packer,mansunkuo/packer,atlassian/packer,mansunkuo/packer,sansb/packer,mkuzmin/packer,vtolstov/packer,marc-ta/packer,smaato/packer,smaato/packer,kgrvamsi/packer,mitchellh/packer,dave2/packer,justincampbell/packer,marc-ta/packer,ricardclau/packer,rnaveiras/packer,yoctocloud/packer,mkuzmin/packer,sneal/packer,pecigonzalo/packer,jonathankarsh/packer,rickard-von-essen/packer,LinusU/packer,hashicorp/packer,zeliff/packer,jimmythedog/packer,jmptrader/packer,leroux/packer,zhuzhih2017/packer,routelastresort/packer,uber/packer,tsmolka/packer,KohlsTechnology/packer,bhcleek/packer,dragon788/packer,napramirez/packer,jasonchaffee/packer,sneal/packer,jimmythedog/packer,mefellows/packer,higebu/packer,grubernaut/packer,ricardclau/packer,timsutton/packer,jamesleech/packer,bhcleek/packer,zeliff/packer,yonglehou/packer,oliviertremblay/packer,samdunne/packer,rk295/packer,jmptrader/packer,grange74/packer,bryson/packer,rnaveiras/packer,qur/packer,dave2/packer,Xiol/packer,visioncritical/packer,qur/packer,hashicorp/packer,dieu/packer,p1-nico/packer,tracyde/packer,dragon788/packer,shaunduncan/packer,jmptrader/packer,mohae/packer,danschaffer/packer,gildas/packer-hyperv,p1-nico/packer,henrysher/packer,yonglehou/packer,smaato/packer,zhuzhih2017/packer,jimmythedog/packer,tracyde/packer,ChrisLundquist/packer,ttaylor249/packer,threatstream/packer,BayanGroup/packer,hasJackb/packer,mwhooker/packer,masbog/packer,jsoriano/packer,blairham/packer,esemplare/packer,kpettijohn/packer,timsutton/packer,Xiol/packer,p1-nico/packer,rk295/packer,youhong316/packer,zeliff/packer,jae2/packer,pieter-lazzaro/packer,dantran/packer,stagrlee/packer,israelshirk/packer,feateds/packer,gbarberi/packer,cyberhouse/packer,DualSpark/packer,quantang/packer,jmptrader/packer,pvanbuijtene/packer,marklap/packer,masbog/packer,bryson/packer,trumant/packer,danschaffer/packer,bryson/packer,evertrue/packer,jszwedko/packer,higebu/packer,burnzy/packer,rrva/packer,samdunne/packer,AlphaStaxLLC/packer,atlassian/packer,avldya/packer,bryson/packer,tb3088/packer,BayanGroup/packer,markpeek/packer,LinusU/packer,sgirones/packer,ttaylor249/packer,pvanbuijtene/packer,mayflower/packer,mafrosis/packer,life360/packer,routelastresort/packer,evertrue/packer,mafrosis/packer,hasJackb/packer,bryson/packer,LinusU/packer,c22/packer,KFishner/packer,avldya/packer,markpeek/packer,jsternberg/packer,burnzy/packer,mohae/packer,tb3088/packer,icnocop/packer,henrysher/packer,noplay/packer,gildas/packer-hyperv,rnaveiras/packer,Akasurde/packer,aneeshusa/packer,atlassian/packer,lantrix/packer,tb3088/packer,monkeylittleinc/packer,jonathankarsh/packer,KFishner/packer,timsutton/packer,KohlsTechnology/packer,jen20/packer,KohlsTechnology/packer,mitchellh/packer,threatstream/packer,hasJackb/packer,tas50/packer,tb3088/packer,higebu/packer,ober/packer,stagrlee/packer,jean/packer,Cbeck527/packer,btd/packer,esemplare/packer,tsmolka/packer,mafrosis/packer,jamesbishopp/packer,leroux/packer,ChrisLundquist/packer,dantran/packer,tracyde/packer,dev-head/packer,boumenot/packer,jasonchaffee/packer,paulmey/packer,jsoriano/packer,fnoeding/packer,mohae/packer,p1-nico/packer,ephemeralsnow/packer,pvanbuijtene/packer,p1-nico/packer,jasonchaffee/packer,ldejager/packer,arizvisa/packer,routelastresort/packer,yoctocloud/packer,mafrosis/packer,youhong316/packer,eranchetz/packer,mefellows/packer,cyberhouse/packer,rodm/packer,tb3088/packer,sean-/packer,hazelesque/packer,styro/packer,umang1912/packer,pearkes/packer,mwhooker/packer,Akasurde/packer,quantang/packer,grange74/packer,dev-head/packer,jen20/packer,tsmolka/packer,mayflower/packer,c22/packer,pvandervelde/packer,c22/packer,jgkim/packer,Akasurde/packer,mefellows/packer,Akasurde/packer,shaunduncan/packer,henrysher/packer,ober/packer,grubernaut/packer,jsternberg/packer,orivej/packer,Akasurde/packer,zhuzhih2017/packer,beni55/packer,sneal/packer,umang1912/packer,fnoeding/packer,legal90/packer,monkeylittleinc/packer,Silver90/packer,bensojona/packer,lantrix/packer,life360/packer,vtolstov/packer,jean/packer,mindjiver/packer,ttaylor249/packer,shaunduncan/packer,AlphaStaxLLC/packer,bryson/packer,sobrinho/packer,leroux/packer,visioncritical/packer,dave2/packer,leroux/packer,taliesins/packer,zhuzhih2017/packer,beni55/packer,gbarberi/packer,dragon788/packer,dev-head/packer,KFishner/packer,timsutton/packer,manicai/packer,jszwedko/packer,ricardclau/packer,taliesins/packer,pearkes/packer,arizvisa/packer,bhcleek/packer,umang1912/packer,Cbeck527/packer,p1-nico/packer,rrva/packer,ChrisLundquist/packer,youhong316/packer,sansb/packer,shaunduncan/packer,feateds/packer,kpettijohn/packer,rickard-von-essen/packer,ChrisLundquist/packer,yoctocloud/packer,bradparks/packer__create_vm_for_aws_docker_vagrant_etc,sneal/packer,sgirones/packer,vtolstov/packer,Cbeck527/packer,youhong316/packer,kgrvamsi/packer,esemplare/packer,taliesins/packer,avldya/packer,rrva/packer,arizvisa/packer,jamesbishopp/packer,sneal/packer,jasonchaffee/packer,paulmey/packer,monsterzz/packer,mansunkuo/packer,kgrvamsi/packer,hashicorp/packer,youhong316/packer,jonathankarsh/packer,rodm/packer,blairham/packer,pvandervelde/packer,danschaffer/packer,visioncritical/packer,jae2/packer,beni55/packer,henrysher/packer,paulmey/packer,KohlsTechnology/packer,marklap/packer,jimmythedog/packer,styro/packer,quantang/packer,grange74/packer,sgirones/packer,Banno/packer,bradparks/packer__create_vm_for_aws_docker_vagrant_etc,icnocop/packer,mindjiver/packer,samdunne/packer,paulvollmer/packer,pvandervelde/packer,hashicorp/packer,ephemeralsnow/packer,monkeylittleinc/packer,ttaylor249/packer,monsterzz/packer,hazelesque/packer,jonathankarsh/packer,Sheile/packer,jean/packer,grange74/packer,styro/packer,yonglehou/packer,manicai/packer,uber/packer,threatstream/packer,dave2/packer,jarl-dk/packer,jgkim/packer,uber/packer,marklap/packer,bradparks/packer__create_vm_for_aws_docker_vagrant_etc,fnoeding/packer,danschaffer/packer,rickard-von-essen/packer,jamesbishopp/packer,mvanholsteijn/packer,tas50/packer,mkuzmin/packer,routelastresort/packer,ober/packer,mvanholsteijn/packer,higebu/packer,israelshirk/packer,mayflower/packer,Xiol/packer,jsoriano/packer,mwhooker/packer,sean-/packer,israelshirk/packer,trumant/packer,AlphaStaxLLC/packer,BayanGroup/packer,zhuzhih2017/packer,zeliff/packer,sequenceiq/packer,hazelesque/packer,pieter-lazzaro/packer,jimmythedog/packer,noplay/packer,tomwilkie/packer,monkeylittleinc/packer,threatstream/packer,evertrue/packer,mohae/packer,jasonchaffee/packer,icnocop/packer,masbog/packer,KohlsTechnology/packer,c22/packer,mayflower/packer,dieu/packer,israelshirk/packer,paulmey/packer,Cbeck527/packer,zakuro9715/packer,noplay/packer,sean-/packer,grubernaut/packer,styro/packer,taliesins/packer,mindjiver/packer,jen20/packer,tomwilkie/packer,life360/packer,jsoriano/packer,Sheile/packer,mkuzmin/packer,threatstream/packer,grubernaut/packer,mvanholsteijn/packer,tomwilkie/packer,paulvollmer/packer,sequenceiq/packer,dayglojesus/packer,oliviertremblay/packer,mafrosis/packer,justincampbell/packer,rodm/packer,bensojona/packer,trumant/packer,napramirez/packer,pearkes/packer,mgk/packer,lantrix/packer,jgkim/packer,paulvollmer/packer,jean/packer,pecigonzalo/packer,jszwedko/packer,yonglehou/packer,dayglojesus/packer,c22/packer,dieu/packer,avldya/packer,pvanbuijtene/packer,dantran/packer,BayanGroup/packer,markpeek/packer,ober/packer,mefellows/packer,markpeek/packer,KFishner/packer,jae2/packer,DualSpark/packer,pvandervelde/packer,kpettijohn/packer,jszwedko/packer,manicai/packer,dayglojesus/packer,justincampbell/packer,life360/packer,rnaveiras/packer,manicai/packer,samdunne/packer,Silver90/packer,aneeshusa/packer,noplay/packer,quantang/packer,mindjiver/packer,tsmolka/packer,blairham/packer,fnoeding/packer,bhcleek/packer,ChrisLundquist/packer,atlassian/packer,grange74/packer,evertrue/packer,Xiol/packer,jsternberg/packer,marklap/packer,jarl-dk/packer,Cbeck527/packer,mansunkuo/packer,mvanholsteijn/packer,rickard-von-essen/packer,pieter-lazzaro/packer,c22/packer,ober/packer,mgk/packer,paulvollmer/packer,mwhooker/packer,marc-ta/packer,tas50/packer,bensojona/packer,qur/packer,tas50/packer,dayglojesus/packer,mohae/packer,kpettijohn/packer,sobrinho/packer,timsutton/packer,mitchellh/packer,pieter-lazzaro/packer,sobrinho/packer,LinusU/packer,pieter-lazzaro/packer,legal90/packer,legal90/packer,jen20/packer,marc-ta/packer,mitchellh/packer,napramirez/packer,ricardclau/packer,rrva/packer,pieter-lazzaro/packer,tas50/packer,jgkim/packer,sean-/packer,lantrix/packer,life360/packer,btd/packer,eranchetz/packer,boumenot/packer,ChrisLundquist/packer,samdunne/packer,jen20/packer,ttaylor249/packer,hazelesque/packer,higebu/packer,jae2/packer,mgk/packer,KohlsTechnology/packer,quantang/packer,mgk/packer,feateds/packer,zakuro9715/packer,monsterzz/packer,jen20/packer,jsternberg/packer,tomwilkie/packer,pvanbuijtene/packer,ldejager/packer,tas50/packer,dragon788/packer,mayflower/packer,rodm/packer,bradparks/packer__create_vm_for_aws_docker_vagrant_etc,bensojona/packer,youhong316/packer,markpeek/packer,mansunkuo/packer,mkuzmin/packer,taliesins/packer,DualSpark/packer,gbarberi/packer,yoctocloud/packer,vtolstov/packer,Silver90/packer,mwhooker/packer,paulmey/packer,ldejager/packer,dave2/packer,oliviertremblay/packer,danschaffer/packer,pecigonzalo/packer,stagrlee/packer,orivej/packer,btd/packer,grubernaut/packer,pearkes/packer,monsterzz/packer,tracyde/packer,atlassian/packer,pecigonzalo/packer,orivej/packer,esemplare/packer,jamesleech/packer,zhuzhih2017/packer,ephemeralsnow/packer,aneeshusa/packer,hasJackb/packer,jamesleech/packer,smaato/packer,ephemeralsnow/packer,oliviertremblay/packer,dieu/packer,justincampbell/packer,aneeshusa/packer,gildas/packer-hyperv,arizvisa/packer,mitchellh/packer,smaato/packer,btd/packer,Sheile/packer,sansb/packer,sequenceiq/packer,beni55/packer,Banno/packer,DualSpark/packer,jarl-dk/packer,rnaveiras/packer,cyberhouse/packer,dayglojesus/packer,stagrlee/packer,jamesleech/packer,ricardclau/packer,icnocop/packer,boumenot/packer,feateds/packer,kgrvamsi/packer,dantran/packer,blairham/packer,boumenot/packer,boumenot/packer,zakuro9715/packer,markpeek/packer,Sheile/packer,paulmey/packer,sgirones/packer,pvandervelde/packer,masbog/packer,dev-head/packer,uber/packer,legal90/packer,arizvisa/packer,Banno/packer,rnaveiras/packer,rickard-von-essen/packer,orivej/packer,sansb/packer,arizvisa/packer,gbarberi/packer,ldejager/packer,sean-/packer,taliesins/packer,rk295/packer,mkuzmin/packer,visioncritical/packer,dantran/packer,Silver90/packer,sequenceiq/packer,zakuro9715/packer,eranchetz/packer,bhcleek/packer,sean-/packer,timsutton/packer,jarl-dk/packer,pvandervelde/packer,napramirez/packer