Added test for leader proxying
Added test for leader proxying

Signed-off-by: Drew Erny <83d780db39fae693cf18623ace93c7ec0dc91590@docker.com>

estesp/docker,miminar/docker,jhorwit2/docker,alfred-landrum/docker,nalind/docker,prertik/docker,prertik/docker,brahmaroutu/docker,pradipd/moby,portworx/docker,cloudflare/docker,rremer/moby,KarthikNayak/docker,Ramzec/docker,AkihiroSuda/docker,HideoYamauchi/docker,SvenDowideit/docker,AkihiroSuda/docker,rhatdan/docker,docker/docker,jlhawn/docker,dmcgowan/docker,catinthesky/docker,moby/moby,mixja/docker,yosifkit/docker,hqhq/moby,noironetworks/docker,pramodhkp/moby,rremer/moby,ffoysal/docker,eskaaren/docker,moypray/docker,dims/docker,mtrmac/docker,laijs/moby,yummypeng/docker,shishir-a412ed/docker,ajaymdesai/docker,stevvooe/docker,Ramzec/docker,gnailuy/docker,KingEmet/docker,danyalKhaliq10p/moby,kojiromike/docker,kencochrane/docker,ColinHebert/docker,dsheets/moby,bearstech/moby,djs55/docker,SvenDowideit/docker,pramodhkp/moby,michelvocks/docker,thtanaka/docker,mtesselH/docker,pradipd/moby,msabansal/docker,trebonian/docker,bonczj/moby-json-file-logger,endophage/docker,13W/docker,yosifkit/docker,tmp6154/docker,13W/docker,srust/docker,pramodhkp/moby,jlhawn/docker,flavio/docker,Syntaxide/docker,jwhonce/docker,abhinavdahiya/docker,lixiaobing1/docker,jvanz/docker,tianon/docker,thtanaka/docker,bearstech/moby,zhuguihua/docker,nawawi/docker,qudongfang/docker,mstanleyjones/docker,13W/docker,shhsu/docker,twaugh/docker,yp-engineering/docker,raja-sami-10p/moby,jwhonce/docker,konstruktoid/docker-upstream,mkumatag/docker,gjaskiewicz/moby,ffoysal/docker,mike1729/docker,tophj-ibm/moby,dsau/docker,tagomoris/docker,AkihiroSuda/docker,hypriot/docker,mohmost12/docker,abhinavdahiya/docker,hypriot/docker,msabansal/docker,dccurtis/docker,asbjornenge/docker,scotttlin/docker,bonczj/moby-json-file-logger,duglin/docker,Syntaxide/docker,coolljt0725/docker,coreos/docker,diogomonica/docker,eskaaren/docker,bonczj/moby-json-file-logger,splunk/docker,dgageot/docker,SvenDowideit/docker,bearstech/moby,portworx/docker,ndeloof/docker,maxamillion/docker,duglin/docker,xuxinkun/docker,amatsus/docker,amatsus/docker,PatrickLang/moby,q384566678/docker,srust/docker,harche/docker,lixiaobing10051267/docker,jimjag/docker,liaoqingwei/docker,raja-sami-10p/moby,dperny/docker,lixiaobing10051267/docker,Ramzec/docker,djs55/docker,dgageot/docker,mtesselH/docker,jimjag/docker,POLJM242/docker,crosbymichael/docker,konstruktoid/docker-upstream,trebonian/docker,moypray/docker,laijs/docker,dsheets/moby,konstruktoid/docker-1,allencloud/docker,madhanrm/docker,tianon/docker,sdurrheimer/docker,yasiramin10p/moby,icaoweiwei/docker,afein/docker,ajaymdesai/docker,flavio/docker,kojiromike/docker,resin-io/docker,justincormack/docker,asbjornenge/docker,kolyshkin/docker,nawawi/docker,tophj-ibm/docker,lixiaobing10051267/docker,moypray/docker,pradipd/moby,ffoysal/docker,tmp6154/docker,endophage/docker,darrenstahlmsft/moby,rancher/docker,kolyshkin/moby,rremer/moby,HuKeping/docker,catinthesky/docker,thaJeztah/docker,sterchelen/docker,AkihiroSuda/docker,dims/docker,johnstep/moby-moby,mohmost12/docker,laijs/docker,vdemeester/docker,scotttlin/docker,gnailuy/docker,yongtang/docker,ColinHebert/docker,sfsmithcha/docker,splunk/docker,mixja/docker,YuPengZTE/docker,imkin/moby,13W/docker,miminar/docker,brahmaroutu/docker,xiekeyang/docker,erikh/docker,Mokolea/docker,flavio/docker,mkumatag/docker,thaJeztah/docker,dccurtis/docker,moby/moby,vdemeester/docker,coolljt0725/docker,mikedougherty/docker,cpuguy83/docker,imkin/moby,mike1729/docker,HideoYamauchi/docker,docker/docker,laijs/docker,mstanleyjones/docker,mtanlee/docker,POLJM242/docker,ibuildthecloud/docker,thaJeztah/docker,icaoweiwei/docker,mikedougherty/docker,q384566678/docker,rancher/docker,konstruktoid/docker-1,cyphar/docker,mohmost12/docker,darrenstahlmsft/docker,dperny/docker,nalind/docker,Syntaxide/docker,allencloud/docker,laijs/moby,x1022as/docker,noironetworks/docker,erikh/docker,tonistiigi/docker,kolyshkin/docker,darrenstahlmsft/docker,fcrisciani/docker,estesp/docker,sterchelen/docker,ajaymdesai/docker,resin-io/docker,naveed-jamil-tenpearls/moby,ripcurld0/moby,xiaods/docker,jhorwit2/docker,alfred-landrum/docker,erikh/docker,tophj-ibm/docker,dgageot/docker,msabansal/docker,jameszhan/docker,q384566678/docker,maxamillion/docker,danyalKhaliq10p/moby,yp-engineering/docker,sdurrheimer/docker,KingEmet/docker,dsau/docker,coolljt0725/docker,endophage/docker,sdurrheimer/docker,kolyshkin/moby,flavio/docker,mtanlee/docker,paralin/docker,akira-baruah/docker,paralin/docker,docker/docker,yongtang/docker,cpuguy83/docker,mahak/docker,jameszhan/docker,djs55/docker,zhuguihua/docker,eskaaren/docker,hypriot/docker,ibuildthecloud/docker,tklauser/docker,twaugh/docker,jameszhan/docker,ripcurld0/moby,cyphar/docker,ibuildthecloud/docker,akira-baruah/docker,kencochrane/docker,ndeloof/docker,charleszheng44/moby,paralin/docker,trebonian/docker,liaoqingwei/docker,YuPengZTE/docker,xiekeyang/docker,gschaetz/moby,dongjoon-hyun/docker,ibuildthecloud/docker,stevvooe/docker,cyphar/docker,catinthesky/docker,afein/docker,cpuguy83/docker,xiaods/docker,paralin/docker,maxamillion/docker,ibuildthecloud/docker,harche/docker,kolyshkin/moby,mtrmac/docker,moul/docker,ColinHebert/docker,yummypeng/docker,jlhawn/docker,zhuguihua/docker,tagomoris/docker,rhatdan/docker,lixiaobing1/docker,haveatry/docker,shishir-a412ed/docker,sarnautov/moby,moul/docker,diogomonica/docker,kunalkushwaha/docker,PatrickLang/moby,mtesselH/docker,nalind/docker,michael-holzheu/docker,moby/moby,crosbymichael/docker,imkin/moby,gschaetz/moby,x1022as/docker,jvanz/docker,xuxinkun/docker,konstruktoid/docker-upstream,shhsu/docker,xiekeyang/docker,mike1729/docker,liaoqingwei/docker,mikebrow/docker,whuwxl/docker,dmcgowan/docker,moul/docker,unclejack/docker,mtanlee/docker,konstruktoid/docker-upstream,Mokolea/docker,darrenstahlmsft/moby,justincormack/docker,raja-sami-10p/moby,michelvocks/docker,tophj-ibm/moby,yp-engineering/docker,thaJeztah/docker,gschaetz/moby,allencloud/docker,bearstech/moby,mikedougherty/docker,charleszheng44/moby,konstruktoid/docker-1,HuKeping/docker,rancher/docker,sarnautov/moby,asbjornenge/docker,jimjag/docker,prertik/docker,naveed-jamil-tenpearls/moby,erikstmartin/docker,trebonian/docker,portworx/docker,crosbymichael/docker,gjaskiewicz/moby,HideoYamauchi/docker,jthelin/docker,unclejack/docker,nawawi/docker,sarnautov/moby,qudongfang/docker,laijs/moby,unclejack/docker,dsheets/moby,13W/docker,whuwxl/docker,KingEmet/docker,Mokolea/docker,hqhq/moby,madhanrm/docker,PatrickLang/moby,nawawi/docker,danyalKhaliq10p/moby,charleszheng44/moby,afein/docker,qudongfang/docker,darrenstahlmsft/moby,darrenstahlmsft/docker,mahak/docker,tonistiigi/docker,gnailuy/docker,coreos/docker,jthelin/docker,diogomonica/docker,naveed-jamil-tenpearls/moby,ripcurld0/moby,jhorwit2/docker,tmp6154/docker,twaugh/docker,shishir-a412ed/docker,stevvooe/docker,cloudflare/docker,dmcgowan/docker,tophj-ibm/moby,JMesser81/docker,yasiramin10p/moby,mahak/docker,duglin/docker,scotttlin/docker,splunk/docker,fcrisciani/docker,resin-io/docker,michael-holzheu/docker,nalind/docker,madhanrm/docker,sterchelen/docker,jwhonce/docker,haveatry/docker,mixja/docker,brahmaroutu/docker,thtanaka/docker,jimjag/docker,alfred-landrum/docker,yongtang/docker,erikstmartin/docker,dccurtis/docker,mahak/docker,amatsus/docker,tklauser/docker,Mokolea/docker,tonistiigi/docker,yosifkit/docker,HuKeping/docker,xuxinkun/docker,haveatry/docker,noironetworks/docker,miminar/docker,michelvocks/docker,abhinavdahiya/docker,moby/moby,whuwxl/docker,erikstmartin/docker,johnstep/moby-moby,JMesser81/docker,johnstep/moby-moby,gnailuy/docker,YuPengZTE/docker,cpuguy83/docker,yasiramin10p/moby,JMesser81/docker,yummypeng/docker,srust/docker,yosifkit/docker,cloudflare/docker,harche/docker,justincormack/docker,estesp/docker,gjaskiewicz/moby,tophj-ibm/docker,ndeloof/docker,xiaods/docker,sfsmithcha/docker,mtrmac/docker,dperny/docker,KarthikNayak/docker,moul/docker,Ramzec/docker,rhatdan/docker,x1022as/docker,coreos/docker,kencochrane/docker,fcrisciani/docker,dongjoon-hyun/docker,kunalkushwaha/docker,mikebrow/docker,mkumatag/docker,vdemeester/docker,dongjoon-hyun/docker,lixiaobing1/docker,kunalkushwaha/docker,tagomoris/docker,icaoweiwei/docker,sfsmithcha/docker,shhsu/docker,mstanleyjones/docker,hqhq/moby,dims/docker,kojiromike/docker,mikebrow/docker,michael-holzheu/docker,KarthikNayak/docker,jvanz/docker,tklauser/docker,dsau/docker