Add envvar to set Docker URL in tests
Add envvar to set Docker URL in tests

DoubleMalt/compose,phiroict/docker,BSWANG/denverdino.github.io,ChrisChinchilla/compose,aanand/fig,jzwlqx/denverdino.github.io,GM-Alex/compose,rillig/docker.github.io,philwrenn/compose,phiroict/docker,bobphill/compose,charleswhchan/compose,dopry/compose,thaJeztah/docker.github.io,twitherspoon/compose,albers/compose,MSakamaki/compose,danix800/docker.github.io,alexandrev/compose,denverdino/docker.github.io,screwgoth/compose,mchasal/compose,bsmr-docker/compose,unodba/compose,zhangspook/compose,ouziel-slama/compose,dbdd4us/compose,mohitsoni/compose,docker-zh/docker.github.io,dockerhn/compose,shubheksha/docker.github.io,alexisbellido/docker.github.io,JimGalasyn/docker.github.io,jorgeLuizChaves/compose,kojiromike/compose,denverdino/docker.github.io,Katlean/fig,bdwill/docker.github.io,menglingwei/denverdino.github.io,rgbkrk/compose,JimGalasyn/docker.github.io,mdaue/compose,KevinGreene/compose,aduermael/docker.github.io,saada/compose,cclauss/compose,phiroict/docker,saada/compose,docker/docker.github.io,d2bit/compose,xydinesh/compose,rillig/docker.github.io,mindaugasrukas/compose,albers/compose,rgbkrk/compose,ain/compose,tangkun75/compose,ekristen/compose,mosquito/docker-compose,feelobot/compose,alunduil/fig,funkyfuture/docker-compose,cgvarela/compose,mark-adams/compose,ralphtheninja/compose,KalleDK/compose,marcusmartins/compose,bobphill/compose,ChrisChinchilla/compose,rillig/docker.github.io,JimGalasyn/docker.github.io,thaJeztah/compose,jzwlqx/denverdino.github.io,kikkomep/compose,Yelp/docker-compose,TheDataShed/compose,docker/docker.github.io,gdevillele/docker.github.io,cclauss/compose,bdwill/docker.github.io,gdevillele/docker.github.io,denverdino/denverdino.github.io,aanand/fig,menglingwei/denverdino.github.io,anweiss/docker.github.io,sanscontext/docker.github.io,jessekl/compose,phiroict/docker,nerro/compose,iamluc/compose,rstacruz/compose,denverdino/docker.github.io,tpounds/compose,runcom/compose,BSWANG/denverdino.github.io,lmesz/compose,sanscontext/docker.github.io,jonaseck2/compose,shubheksha/docker.github.io,ouziel-slama/compose,dockerhn/compose,mnowster/compose,tiry/compose,RobertNorthard/compose,j-fuentes/compose,VinceBarresi/compose,amitsaha/compose,alexisbellido/docker.github.io,mdaue/compose,hypriot/compose,Chouser/compose,phiroict/docker,joaofnfernandes/docker.github.io,vdemeester/compose,ionrock/compose,sebglazebrook/compose,brunocascio/compose,shin-/docker.github.io,mchasal/compose,ggtools/compose,docker-zh/docker.github.io,au-phiware/compose,JimGalasyn/docker.github.io,johnstep/docker.github.io,Yelp/docker-compose,tiry/compose,screwgoth/compose,mindaugasrukas/compose,TomasTomecek/compose,jrabbit/compose,cgvarela/compose,LuisBosquez/docker.github.io,schmunk42/compose,joeuo/docker.github.io,dilgerma/compose,sanscontext/docker.github.io,joaofnfernandes/docker.github.io,noironetworks/compose,jgrowl/compose,londoncalling/docker.github.io,rstacruz/compose,marcusmartins/compose,vlajos/compose,gtrdotmcs/compose,prologic/compose,menglingwei/denverdino.github.io,sanscontext/docker.github.io,GM-Alex/compose,shin-/docker.github.io,vlajos/compose,anweiss/docker.github.io,TheDataShed/compose,au-phiware/compose,LuisBosquez/docker.github.io,benhamill/compose,shakamunyi/fig,iamluc/compose,BSWANG/denverdino.github.io,jrabbit/compose,londoncalling/docker.github.io,danix800/docker.github.io,jgrowl/compose,pspierce/compose,Katlean/fig,thaJeztah/docker.github.io,noironetworks/compose,sdurrheimer/compose,ph-One/compose,aduermael/docker.github.io,benhamill/compose,mrfuxi/compose,mbailey/compose,docker-zh/docker.github.io,JimGalasyn/docker.github.io,pspierce/compose,gdevillele/docker.github.io,mrfuxi/compose,michael-k/docker-compose,troy0820/docker.github.io,dbdd4us/compose,feelobot/compose,gdevillele/docker.github.io,denverdino/compose,shin-/compose,hoogenm/compose,thieman/compose,BSWANG/denverdino.github.io,browning/compose,danix800/docker.github.io,talolard/compose,shin-/docker.github.io,philwrenn/compose,mnowster/compose,menglingwei/denverdino.github.io,d2bit/compose,moxiegirl/compose,shin-/docker.github.io,johnstep/docker.github.io,andrewgee/compose,tangkun75/compose,mark-adams/compose,londoncalling/docker.github.io,twitherspoon/compose,moxiegirl/compose,LuisBosquez/docker.github.io,gdevillele/docker.github.io,alexisbellido/docker.github.io,abesto/fig,bbirand/compose,j-fuentes/compose,joeuo/docker.github.io,uvgroovy/compose,jorgeLuizChaves/compose,denverdino/compose,calou/compose,funkyfuture/docker-compose,shakamunyi/fig,BSWANG/denverdino.github.io,bcicen/fig,sdurrheimer/compose,anweiss/docker.github.io,ZJaffee/compose,KevinGreene/compose,browning/compose,DoubleMalt/compose,mnuessler/compose,glogiotatidis/compose,anweiss/docker.github.io,joaofnfernandes/docker.github.io,lukemarsden/compose,rillig/docker.github.io,lukemarsden/compose,MSakamaki/compose,jzwlqx/denverdino.github.io,jiekechoo/compose,shin-/docker.github.io,docker/docker.github.io,thaJeztah/compose,hoogenm/compose,shubheksha/docker.github.io,nhumrich/compose,bdwill/docker.github.io,nhumrich/compose,thaJeztah/docker.github.io,johnstep/docker.github.io,brunocascio/compose,alexandrev/compose,schmunk42/compose,bcicen/fig,sebglazebrook/compose,denverdino/denverdino.github.io,ph-One/compose,thieman/compose,bfirsh/fig,prologic/compose,swoopla/compose,ekristen/compose,troy0820/docker.github.io,goloveychuk/compose,ZJaffee/compose,viranch/compose,menglingwei/denverdino.github.io,artemkaint/compose,kojiromike/compose,joeuo/docker.github.io,thaJeztah/docker.github.io,anweiss/docker.github.io,jessekl/compose,denverdino/docker.github.io,unodba/compose,josephpage/compose,mnuessler/compose,bdwill/docker.github.io,denverdino/denverdino.github.io,shin-/compose,ralphtheninja/compose,TomasTomecek/compose,shubheksha/docker.github.io,kikkomep/compose,alexisbellido/docker.github.io,calou/compose,londoncalling/docker.github.io,docker/docker.github.io,genki/compose,jzwlqx/denverdino.github.io,thaJeztah/docker.github.io,heroku/fig,troy0820/docker.github.io,sanscontext/docker.github.io,LuisBosquez/docker.github.io,michael-k/docker-compose,amitsaha/compose,runcom/compose,bbirand/compose,docker-zh/docker.github.io,zhangspook/compose,abesto/fig,joeuo/docker.github.io,ggtools/compose,LuisBosquez/docker.github.io,heroku/fig,charleswhchan/compose,Chouser/compose,denverdino/denverdino.github.io,joaofnfernandes/docker.github.io,heroku/fig,dilgerma/compose,johnstep/docker.github.io,dnephin/compose,simonista/compose,VinceBarresi/compose,bcicen/fig,jonaseck2/compose,bdwill/docker.github.io,alexisbellido/docker.github.io,danix800/docker.github.io,lmesz/compose,shubheksha/docker.github.io,denverdino/denverdino.github.io,andrewgee/compose,jeanpralo/compose,denverdino/docker.github.io,Dakno/compose,aduermael/docker.github.io,vdemeester/compose,jeanpralo/compose,docker-zh/docker.github.io,nerro/compose,gtrdotmcs/compose,tpounds/compose,uvgroovy/compose,jzwlqx/denverdino.github.io,mosquito/docker-compose,dnephin/compose,xydinesh/compose,bsmr-docker/compose,jiekechoo/compose,josephpage/compose,bfirsh/fig,alunduil/fig,talolard/compose,swoopla/compose,qzio/compose,glogiotatidis/compose,artemkaint/compose,docker/docker.github.io,hypriot/compose,KalleDK/compose,simonista/compose,goloveychuk/compose,mbailey/compose,dopry/compose,londoncalling/docker.github.io,ionrock/compose,genki/compose,RobertNorthard/compose,Dakno/compose,ain/compose,troy0820/docker.github.io,qzio/compose,joaofnfernandes/docker.github.io,johnstep/docker.github.io,aduermael/docker.github.io,viranch/compose,joeuo/docker.github.io,mohitsoni/compose