etcd: Allow Makefile to be used on SELinux systems
etcd: Allow Makefile to be used on SELinux systems

Adds check for SELinux and then adds the :z parameter to the volume
mounts in order to work on SELinux enabled systems such as Fedora.

Signed-off-by: Naadir Jeewa <0e8e8a13444bab63f21ab28b6de29dbabfba246f@vmware.com>

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