Adds kubeadm feature-gate for dual-stack (IPv6DualStack). Issue: #1612
Adds kubeadm feature-gate for dual-stack (IPv6DualStack).
Issue: #1612

rrati/kubernetes,sdminonne/kubernetes,erwinvaneyk/kubernetes,aveshagarwal/kubernetes,mikebrow/kubernetes,klaus1982/kubernetes,fanzhangio/kubernetes,bizhao/kubernetes,tomzhang/kubernetes,tomzhang/kubernetes,micahhausler/kubernetes,mfojtik/kubernetes,mml/kubernetes,jingxu97/kubernetes,chrislovecnm/kubernetes,PiotrProkop/kubernetes,jagosan/kubernetes,ConnorDoyle/kubernetes,rnaveiras/kubernetes,nckturner/kubernetes,PiotrProkop/kubernetes,intelsdi-x/kubernetes,ixdy/kubernetes,aledbf/kubernetes,lojies/kubernetes,saad-ali/kubernetes,wenlxie/kubernetes,PI-Victor/kubernetes,fanzhangio/kubernetes,tcnghia/kubernetes,weiwei04/kubernetes,tomerf/kubernetes,tcnghia/kubernetes,kow3ns/kubernetes,stevesloka/kubernetes,ConnorDoyle/kubernetes,GulajavaMinistudio/kubernetes,sanjeevm0/kubernetes,xychu/kubernetes,ixdy/kubernetes,kpgriffith/kubernetes,huangjiuyuan/kubernetes,mfojtik/kubernetes,alejandroEsc/kubernetes,soltysh/kubernetes,li-ang/kubernetes,dims/kubernetes,Lion-Wei/kubernetes,wenlxie/kubernetes,jagosan/kubernetes,quinton-hoole/kubernetes,jdef/kubernetes,ravisantoshgudimetla/kubernetes,kitt1987/kubernetes,linux-on-ibm-z/kubernetes,quinton-hoole/kubernetes,rafax/kubernetes,nak3/kubernetes,deads2k/kubernetes,fabriziopandini/kubernetes,kevin-wangzefeng/kubernetes,weiwei04/kubernetes,jingxu97/kubernetes,jennybuckley/kubernetes,li-ang/kubernetes,bparees/kubernetes,fejta/kubernetes,mengqiy/kubernetes,du2016/kubernetes,frodenas/kubernetes,soltysh/kubernetes,Hui-Zhi/kubernetes,fabriziopandini/kubernetes,Lion-Wei/kubernetes,csrwng/kubernetes,khenidak/kubernetes,mikedanese/kubernetes,dims/kubernetes,cantbewong/kubernetes,ii/kubernetes,frodenas/kubernetes,huangjiuyuan/kubernetes,dlorenc/kubernetes,spzala/kubernetes,aledbf/kubernetes,kpgriffith/kubernetes,zhouhaibing089/kubernetes,verb/kubernetes,tengqm/kubernetes,quinton-hoole/kubernetes,spzala/kubernetes,roberthbailey/kubernetes,kevin-wangzefeng/kubernetes,spzala/kubernetes,pmorie/kubernetes,jdef/kubernetes,matthyx/kubernetes,chrislovecnm/kubernetes,tomzhang/kubernetes,sanjeevm0/kubernetes,hex108/kubernetes,DiamantiCom/kubernetes,u2takey/kubernetes,wongma7/kubernetes,spzala/kubernetes,ConnorDoyle/kubernetes,ravilr/kubernetes,jingxu97/kubernetes,carlory/kubernetes,sdminonne/kubernetes,idvoretskyi/kubernetes,sdminonne/kubernetes,mfojtik/kubernetes,kow3ns/kubernetes,bizhao/kubernetes,ping035627/kubernetes,sdminonne/kubernetes,alejandroEsc/kubernetes,li-ang/kubernetes,MikeSpreitzer/kubernetes,jennybuckley/kubernetes,u2takey/kubernetes,kubernetes/kubernetes,warmchang/kubernetes,fabriziopandini/kubernetes,errordeveloper/kubernetes,rnaveiras/kubernetes,frodenas/kubernetes,chestack/kubernetes,roberthbailey/kubernetes,tcnghia/kubernetes,khenidak/kubernetes,gnufied/kubernetes,nckturner/kubernetes,JacobTanenbaum/kubernetes,rrati/kubernetes,x13n/kubernetes,DiamantiCom/kubernetes,jennybuckley/kubernetes,alejandroEsc/kubernetes,k82cn/kubernetes,rafax/kubernetes,joelsmith/kubernetes,idvoretskyi/kubernetes,luxas/kubernetes,mfojtik/kubernetes,LalatenduMohanty/kubernetes,ravilr/kubernetes,coolsvap/kubernetes,pwittrock/kubernetes,errordeveloper/kubernetes,chestack/kubernetes,kpgriffith/kubernetes,dlorenc/kubernetes,mahak/kubernetes,olivierlemasle/kubernetes,MHBauer/kubernetes,davidz627/kubernetes,warmchang/kubernetes,PI-Victor/kubernetes,rrati/kubernetes,tcnghia/kubernetes,cblecker/kubernetes,x13n/kubernetes,Lion-Wei/kubernetes,feiskyer/kubernetes,tallclair/kubernetes,iameli/kubernetes,feiskyer/kubernetes,andrewsykim/kubernetes,mikebrow/kubernetes,pires/kubernetes,erwinvaneyk/kubernetes,sanjeevm0/kubernetes,roberthbailey/kubernetes,lojies/kubernetes,wanghaoran1988/kubernetes,shyamjvs/kubernetes,MikeSpreitzer/kubernetes,kitt1987/kubernetes,Clarifai/kubernetes,mkumatag/kubernetes,Clarifai/kubernetes,verult/kubernetes,tomzhang/kubernetes,yujuhong/kubernetes,matthyx/kubernetes,maciaszczykm/kubernetes,derekwaynecarr/kubernetes,tomerf/kubernetes,mikedanese/kubernetes,ping035627/kubernetes,frodenas/kubernetes,yujuhong/kubernetes,mengqiy/kubernetes,kevensen/kubernetes,ingvagabund/kubernetes,roberthbailey/kubernetes,saad-ali/kubernetes,andrewrynhard/kubernetes,tpepper/kubernetes,pweil-/kubernetes,dims/kubernetes,stevesloka/kubernetes,Acidburn0zzz/kubernetes,spzala/kubernetes,JacobTanenbaum/kubernetes,mYmNeo/kubernetes,weiwei04/kubernetes,mml/kubernetes,xlgao-zju/kubernetes,lichuqiang/kubernetes,feiskyer/kubernetes,sanjeevm0/kubernetes,fanzhangio/kubernetes,mengqiy/kubernetes,tallclair/kubernetes,cadmuxe/kubernetes,njuicsgz/kubernetes-1,dereknex/kubernetes,tomzhang/kubernetes,joelsmith/kubernetes,hex108/kubernetes,nikhita/kubernetes,tengqm/kubernetes,cofyc/kubernetes,deads2k/kubernetes,cantbewong/kubernetes,rafax/kubernetes,kevensen/kubernetes,fgimenez/kubernetes,Clarifai/kubernetes,zhangmingld/kubernetes,tallclair/kubernetes,ConnorDoyle/kubernetes,aveshagarwal/kubernetes,BenTheElder/kubernetes,olivierlemasle/kubernetes,andrewrynhard/kubernetes,cantbewong/kubernetes,du2016/kubernetes,PiotrProkop/kubernetes,MHBauer/kubernetes,jackfrancis/kubernetes,mboersma/kubernetes,mfojtik/kubernetes,monopole/kubernetes,mYmNeo/kubernetes,PI-Victor/kubernetes,tomzhang/kubernetes,brendandburns/kubernetes,deads2k/kubernetes,tcnghia/kubernetes,gnufied/kubernetes,roberthbailey/kubernetes,jagosan/kubernetes,mengqiy/kubernetes,sdminonne/kubernetes,bparees/kubernetes,MikeSpreitzer/kubernetes,brendandburns/kubernetes,krmayankk/kubernetes,jackfrancis/kubernetes,chrislovecnm/kubernetes,verult/kubernetes,weiwei04/kubernetes,andrewsykim/kubernetes,wongma7/kubernetes,jessfraz/kubernetes,LalatenduMohanty/kubernetes,mahak/kubernetes,verult/kubernetes,jagosan/kubernetes,feiskyer/kubernetes,liggitt/kubernetes,sethpollack/kubernetes,x13n/kubernetes,pwittrock/kubernetes,frodenas/kubernetes,brendandburns/kubernetes,matthyx/kubernetes,iterion/kubernetes,carlory/kubernetes,yarntime/kubernetes,kow3ns/kubernetes,mml/kubernetes,liggitt/kubernetes,k82/kubernetes,davidz627/kubernetes,aledbf/kubernetes,humblec/kubernetes,tcnghia/kubernetes,fabriziopandini/kubernetes,xychu/kubernetes,GulajavaMinistudio/kubernetes,cadmuxe/kubernetes,derekwaynecarr/kubernetes,njuicsgz/kubernetes-1,errordeveloper/kubernetes,dereknex/kubernetes,pwittrock/kubernetes,intelsdi-x/kubernetes,jennybuckley/kubernetes,li-ang/kubernetes,nckturner/kubernetes,du2016/kubernetes,deads2k/kubernetes,x13n/kubernetes,micahhausler/kubernetes,PiotrProkop/kubernetes,xlgao-zju/kubernetes,huangjiuyuan/kubernetes,DiamantiCom/kubernetes,mml/kubernetes,iterion/kubernetes,BenTheElder/kubernetes,jdef/kubernetes,humblec/kubernetes,pmorie/kubernetes,stevesloka/kubernetes,iterion/kubernetes,GulajavaMinistudio/kubernetes,GulajavaMinistudio/kubernetes,pwittrock/kubernetes,nak3/kubernetes,Lion-Wei/kubernetes,DiamantiCom/kubernetes,coolsvap/kubernetes,zetaab/kubernetes,jdef/kubernetes,openshift/kubernetes,idvoretskyi/kubernetes,cofyc/kubernetes,ixdy/kubernetes,wongma7/kubernetes,wanghaoran1988/kubernetes,zhangmingld/kubernetes,krmayankk/kubernetes,rrati/kubernetes,coolsvap/kubernetes,cantbewong/kubernetes,deads2k/kubernetes,wongma7/kubernetes,chestack/kubernetes,k82cn/kubernetes,kubernetes/kubernetes,ravilr/kubernetes,kevin-wangzefeng/kubernetes,dixudx/kubernetes,tengqm/kubernetes,cblecker/kubernetes,johscheuer/kubernetes,mboersma/kubernetes,njuicsgz/kubernetes-1,yujuhong/kubernetes,jsafrane/kubernetes,fejta/kubernetes,thockin/kubernetes,jingxu97/kubernetes,jfrazelle/kubernetes,verb/kubernetes,nak3/kubernetes,joelsmith/kubernetes,mkumatag/kubernetes,MHBauer/kubernetes,errordeveloper/kubernetes,frodenas/kubernetes,dixudx/kubernetes,weiwei04/kubernetes,enj/kubernetes,hex108/kubernetes,erwinvaneyk/kubernetes,humblec/kubernetes,Acidburn0zzz/kubernetes,derekwaynecarr/kubernetes,johscheuer/kubernetes,mYmNeo/kubernetes,matthyx/kubernetes,bizhao/kubernetes,zhangmingld/kubernetes,thockin/kubernetes,fgimenez/kubernetes,fgimenez/kubernetes,linux-on-ibm-z/kubernetes,PI-Victor/kubernetes,mYmNeo/kubernetes,bparees/kubernetes,cadmuxe/kubernetes,ingvagabund/kubernetes,micahhausler/kubernetes,sethpollack/kubernetes,iameli/kubernetes,ConnorDoyle/kubernetes,pweil-/kubernetes,du2016/kubernetes,cmluciano/kubernetes,kubernetes/kubernetes,olivierlemasle/kubernetes,intelsdi-x/kubernetes,fejta/kubernetes,tomerf/kubernetes,derekwaynecarr/kubernetes,mboersma/kubernetes,wenlxie/kubernetes,JacobTanenbaum/kubernetes,MHBauer/kubernetes,tpepper/kubernetes,aveshagarwal/kubernetes,derekwaynecarr/kubernetes,njuicsgz/kubernetes-1,idvoretskyi/kubernetes,lichuqiang/kubernetes,njuicsgz/kubernetes-1,klaus1982/kubernetes,aveshagarwal/kubernetes,fgimenez/kubernetes,saad-ali/kubernetes,kevensen/kubernetes,mikedanese/kubernetes,errordeveloper/kubernetes,cadmuxe/kubernetes,jfrazelle/kubernetes,davidz627/kubernetes,cmluciano/kubernetes,jagosan/kubernetes,xlgao-zju/kubernetes,chrislovecnm/kubernetes,kitt1987/kubernetes,enj/kubernetes,liggitt/kubernetes,pwittrock/kubernetes,cblecker/kubernetes,k82cn/kubernetes,krmayankk/kubernetes,pmorie/kubernetes,jessfraz/kubernetes,fgimenez/kubernetes,mosoft521/kubernetes,sethpollack/kubernetes,rnaveiras/kubernetes,shyamjvs/kubernetes,csrwng/kubernetes,cmluciano/kubernetes,soltysh/kubernetes,enj/kubernetes,idvoretskyi/kubernetes,cadmuxe/kubernetes,brendandburns/kubernetes,krmayankk/kubernetes,pwittrock/kubernetes,mYmNeo/kubernetes,luxas/kubernetes,mfojtik/kubernetes,coolsvap/kubernetes,tengqm/kubernetes,krmayankk/kubernetes,ii/kubernetes,tomzhang/kubernetes,dereknex/kubernetes,tengqm/kubernetes,ingvagabund/kubernetes,coolsvap/kubernetes,alejandroEsc/kubernetes,zhangmingld/kubernetes,xlgao-zju/kubernetes,ixdy/kubernetes,bizhao/kubernetes,dlorenc/kubernetes,lichuqiang/kubernetes,iterion/kubernetes,jfrazelle/kubernetes,kubernetes/kubernetes,jackfrancis/kubernetes,klaus1982/kubernetes,linux-on-ibm-z/kubernetes,kevin-wangzefeng/kubernetes,mikebrow/kubernetes,mosoft521/kubernetes,Clarifai/kubernetes,mboersma/kubernetes,luxas/kubernetes,pires/kubernetes,kpgriffith/kubernetes,x13n/kubernetes,mengqiy/kubernetes,aveshagarwal/kubernetes,liggitt/kubernetes,nikhita/kubernetes,u2takey/kubernetes,mikebrow/kubernetes,jsafrane/kubernetes,wongma7/kubernetes,pmorie/kubernetes,lojies/kubernetes,BenTheElder/kubernetes,johscheuer/kubernetes,mkumatag/kubernetes,ii/kubernetes,carlory/kubernetes,tpepper/kubernetes,joelsmith/kubernetes,micahhausler/kubernetes,fanzhangio/kubernetes,cadmuxe/kubernetes,yarntime/kubernetes,krmayankk/kubernetes,dlorenc/kubernetes,jackfrancis/kubernetes,njuicsgz/kubernetes-1,khenidak/kubernetes,hex108/kubernetes,njuicsgz/kubernetes-1,Clarifai/kubernetes,tallclair/kubernetes,ravilr/kubernetes,saad-ali/kubernetes,Hui-Zhi/kubernetes,jsafrane/kubernetes,kow3ns/kubernetes,ii/kubernetes,coolsvap/kubernetes,DiamantiCom/kubernetes,dereknex/kubernetes,errordeveloper/kubernetes,tomerf/kubernetes,iterion/kubernetes,mboersma/kubernetes,BenTheElder/kubernetes,jsafrane/kubernetes,derekwaynecarr/kubernetes,wanghaoran1988/kubernetes,jessfraz/kubernetes,maciaszczykm/kubernetes,csrwng/kubernetes,pires/kubernetes,lojies/kubernetes,lojies/kubernetes,fejta/kubernetes,nikhita/kubernetes,gnufied/kubernetes,pweil-/kubernetes,Acidburn0zzz/kubernetes,zetaab/kubernetes,dixudx/kubernetes,monopole/kubernetes,jfrazelle/kubernetes,idvoretskyi/kubernetes,cofyc/kubernetes,sanjeevm0/kubernetes,pires/kubernetes,monopole/kubernetes,huangjiuyuan/kubernetes,fanzhangio/kubernetes,kevensen/kubernetes,k82/kubernetes,Acidburn0zzz/kubernetes,mboersma/kubernetes,maciaszczykm/kubernetes,andrewsykim/kubernetes,verult/kubernetes,hex108/kubernetes,wanghaoran1988/kubernetes,kubernetes/kubernetes,shyamjvs/kubernetes,jingxu97/kubernetes,alejandroEsc/kubernetes,sethpollack/kubernetes,Hui-Zhi/kubernetes,zhouhaibing089/kubernetes,LalatenduMohanty/kubernetes,nak3/kubernetes,saad-ali/kubernetes,Hui-Zhi/kubernetes,khenidak/kubernetes,carlory/kubernetes,nckturner/kubernetes,aledbf/kubernetes,wanghaoran1988/kubernetes,kow3ns/kubernetes,ingvagabund/kubernetes,stevesloka/kubernetes,khenidak/kubernetes,nckturner/kubernetes,chestack/kubernetes,ping035627/kubernetes,BenTheElder/kubernetes,weiwei04/kubernetes,warmchang/kubernetes,MHBauer/kubernetes,Hui-Zhi/kubernetes,warmchang/kubernetes,cblecker/kubernetes,lichuqiang/kubernetes,yarntime/kubernetes,jackfrancis/kubernetes,liggitt/kubernetes,kevin-wangzefeng/kubernetes,iameli/kubernetes,pweil-/kubernetes,li-ang/kubernetes,Lion-Wei/kubernetes,fejta/kubernetes,sanjeevm0/kubernetes,iameli/kubernetes,wenlxie/kubernetes,wenlxie/kubernetes,luxas/kubernetes,cblecker/kubernetes,nak3/kubernetes,kitt1987/kubernetes,LalatenduMohanty/kubernetes,x13n/kubernetes,intelsdi-x/kubernetes,brendandburns/kubernetes,erwinvaneyk/kubernetes,ravilr/kubernetes,zhouhaibing089/kubernetes,thockin/kubernetes,mboersma/kubernetes,gnufied/kubernetes,thockin/kubernetes,yarntime/kubernetes,wenlxie/kubernetes,tomzhang/kubernetes,dereknex/kubernetes,ping035627/kubernetes,u2takey/kubernetes,pmorie/kubernetes,LalatenduMohanty/kubernetes,matthyx/kubernetes,Lion-Wei/kubernetes,Clarifai/kubernetes,mml/kubernetes,jessfraz/kubernetes,dixudx/kubernetes,shyamjvs/kubernetes,andrewsykim/kubernetes,andrewrynhard/kubernetes,mml/kubernetes,jdef/kubernetes,monopole/kubernetes,mosoft521/kubernetes,jessfraz/kubernetes,u2takey/kubernetes,hex108/kubernetes,jennybuckley/kubernetes,quinton-hoole/kubernetes,ping035627/kubernetes,cmluciano/kubernetes,andrewsykim/kubernetes,ixdy/kubernetes,erwinvaneyk/kubernetes,GulajavaMinistudio/kubernetes,linux-on-ibm-z/kubernetes,soltysh/kubernetes,PI-Victor/kubernetes,kevensen/kubernetes,aveshagarwal/kubernetes,mikedanese/kubernetes,zetaab/kubernetes,mYmNeo/kubernetes,brendandburns/kubernetes,verb/kubernetes,huangjiuyuan/kubernetes,iameli/kubernetes,monopole/kubernetes,pires/kubernetes,MikeSpreitzer/kubernetes,davidz627/kubernetes,andrewrynhard/kubernetes,fejta/kubernetes,csrwng/kubernetes,wanghaoran1988/kubernetes,Acidburn0zzz/kubernetes,pweil-/kubernetes,ingvagabund/kubernetes,mikedanese/kubernetes,xychu/kubernetes,fgimenez/kubernetes,klaus1982/kubernetes,Acidburn0zzz/kubernetes,k82/kubernetes,aledbf/kubernetes,ii/kubernetes,dixudx/kubernetes,cantbewong/kubernetes,u2takey/kubernetes,LalatenduMohanty/kubernetes,nikhita/kubernetes,davidz627/kubernetes,verb/kubernetes,MHBauer/kubernetes,johscheuer/kubernetes,openshift/kubernetes,mikebrow/kubernetes,tpepper/kubernetes,JacobTanenbaum/kubernetes,xychu/kubernetes,saad-ali/kubernetes,quinton-hoole/kubernetes,quinton-hoole/kubernetes,PI-Victor/kubernetes,ravisantoshgudimetla/kubernetes,stevesloka/kubernetes,k82/kubernetes,njuicsgz/kubernetes-1,rnaveiras/kubernetes,tallclair/kubernetes,tpepper/kubernetes,bparees/kubernetes,MikeSpreitzer/kubernetes,tomerf/kubernetes,bizhao/kubernetes,davidz627/kubernetes,tomerf/kubernetes,fabriziopandini/kubernetes,rrati/kubernetes,lichuqiang/kubernetes,erwinvaneyk/kubernetes,khenidak/kubernetes,warmchang/kubernetes,mahak/kubernetes,mahak/kubernetes,jennybuckley/kubernetes,huangjiuyuan/kubernetes,thockin/kubernetes,JacobTanenbaum/kubernetes,jsafrane/kubernetes,andrewsykim/kubernetes,tomzhang/kubernetes,dims/kubernetes,du2016/kubernetes,maciaszczykm/kubernetes,zetaab/kubernetes,kpgriffith/kubernetes,sethpollack/kubernetes,yujuhong/kubernetes,cofyc/kubernetes,intelsdi-x/kubernetes,ingvagabund/kubernetes,mkumatag/kubernetes,luxas/kubernetes,bizhao/kubernetes,DiamantiCom/kubernetes,pires/kubernetes,JacobTanenbaum/kubernetes,bparees/kubernetes,andrewrynhard/kubernetes,xychu/kubernetes,yujuhong/kubernetes,cofyc/kubernetes,enj/kubernetes,joelsmith/kubernetes,luxas/kubernetes,chrislovecnm/kubernetes,k82/kubernetes,xlgao-zju/kubernetes,soltysh/kubernetes,enj/kubernetes,kow3ns/kubernetes,fanzhangio/kubernetes,mosoft521/kubernetes,chrislovecnm/kubernetes,nak3/kubernetes,dlorenc/kubernetes,johscheuer/kubernetes,tallclair/kubernetes,chestack/kubernetes,carlory/kubernetes,ConnorDoyle/kubernetes,humblec/kubernetes,zhangmingld/kubernetes,gnufied/kubernetes,yarntime/kubernetes,verb/kubernetes,maciaszczykm/kubernetes,cmluciano/kubernetes,mkumatag/kubernetes,olivierlemasle/kubernetes,dims/kubernetes,yujuhong/kubernetes,pweil-/kubernetes,linux-on-ibm-z/kubernetes,verult/kubernetes,joelsmith/kubernetes,mboersma/kubernetes,ixdy/kubernetes,rnaveiras/kubernetes,olivierlemasle/kubernetes,csrwng/kubernetes,rafax/kubernetes,ravisantoshgudimetla/kubernetes,kpgriffith/kubernetes,micahhausler/kubernetes,verult/kubernetes,lichuqiang/kubernetes,stevesloka/kubernetes,iterion/kubernetes,intelsdi-x/kubernetes,mahak/kubernetes,zhouhaibing089/kubernetes,andrewrynhard/kubernetes,xlgao-zju/kubernetes,shyamjvs/kubernetes,cmluciano/kubernetes,ravisantoshgudimetla/kubernetes,dlorenc/kubernetes,openshift/kubernetes,zhouhaibing089/kubernetes,tpepper/kubernetes,cantbewong/kubernetes,cofyc/kubernetes,zhangmingld/kubernetes,ravisantoshgudimetla/kubernetes,ravisantoshgudimetla/kubernetes,k82cn/kubernetes,jfrazelle/kubernetes,johscheuer/kubernetes,mosoft521/kubernetes,maciaszczykm/kubernetes,xychu/kubernetes,feiskyer/kubernetes,kitt1987/kubernetes,nikhita/kubernetes,jdef/kubernetes,kitt1987/kubernetes,pmorie/kubernetes,openshift/kubernetes,openshift/kubernetes,k82cn/kubernetes,PiotrProkop/kubernetes,humblec/kubernetes,Hui-Zhi/kubernetes,dereknex/kubernetes,zetaab/kubernetes,yarntime/kubernetes,zetaab/kubernetes