Make the host of interop tests modifiable per-class
Make the host of interop tests modifiable per-class

kpayson64/grpc,miselin/grpc,philcleveland/grpc,ejona86/grpc,makdharma/grpc,soltanmm-google/grpc,ctiller/grpc,w4-sjcho/grpc,muxi/grpc,ananthonline/grpc,yugui/grpc,dgquintas/grpc,stanley-cheung/grpc,ctiller/grpc,adelez/grpc,chrisdunelm/grpc,arkmaxim/grpc,gpndata/grpc,ppietrasa/grpc,deepaklukose/grpc,podsvirov/grpc,greasypizza/grpc,kpayson64/grpc,infinit/grpc,miselin/grpc,nicolasnoble/grpc,w4-sjcho/grpc,miselin/grpc,larsonmpdx/grpc,firebase/grpc,VcamX/grpc,jcanizales/grpc,ananthonline/grpc,zhimingxie/grpc,philcleveland/grpc,kriswuollett/grpc,geffzhang/grpc,pszemus/grpc,a11r/grpc,rjshade/grpc,msiedlarek/grpc,thunderboltsid/grpc,yinsu/grpc,jcanizales/grpc,larsonmpdx/grpc,donnadionne/grpc,thinkerou/grpc,dgquintas/grpc,greasypizza/grpc,VcamX/grpc,greasypizza/grpc,a-veitch/grpc,arkmaxim/grpc,a-veitch/grpc,bjori/grpc,goldenbull/grpc,larsonmpdx/grpc,stanley-cheung/grpc,infinit/grpc,andrewpollock/grpc,hstefan/grpc,wangyikai/grpc,mehrdada/grpc,tempbottle/grpc,yinsu/grpc,royalharsh/grpc,ncteisen/grpc,podsvirov/grpc,mehrdada/grpc,JoeWoo/grpc,pszemus/grpc,carl-mastrangelo/grpc,7anner/grpc,donnadionne/grpc,murgatroid99/grpc,VcamX/grpc,wangyikai/grpc,thunderboltsid/grpc,vsco/grpc,ppietrasa/grpc,deepaklukose/grpc,kskalski/grpc,greasypizza/grpc,stanley-cheung/grpc,miselin/grpc,jtattermusch/grpc,ejona86/grpc,hstefan/grpc,muxi/grpc,sreecha/grpc,surround-io/grpc,MakMukhi/grpc,ctiller/grpc,dklempner/grpc,LuminateWireless/grpc,perumaalgoog/grpc,LuminateWireless/grpc,vjpai/grpc,dgquintas/grpc,simonkuang/grpc,adelez/grpc,jboeuf/grpc,stanley-cheung/grpc,makdharma/grpc,sreecha/grpc,yongni/grpc,chrisdunelm/grpc,pmarks-net/grpc,muxi/grpc,wcevans/grpc,makdharma/grpc,apolcyn/grpc,vsco/grpc,jtattermusch/grpc,mehrdada/grpc,crast/grpc,wcevans/grpc,ipylypiv/grpc,wangyikai/grpc,ananthonline/grpc,soltanmm/grpc,rjshade/grpc,thinkerou/grpc,pmarks-net/grpc,donnadionne/grpc,wcevans/grpc,miselin/grpc,7anner/grpc,a11r/grpc,thinkerou/grpc,grpc/grpc,grpc/grpc,chrisdunelm/grpc,grpc/grpc,ctiller/grpc,deepaklukose/grpc,quizlet/grpc,ejona86/grpc,kumaralokgithub/grpc,stanley-cheung/grpc,zhimingxie/grpc,adelez/grpc,hstefan/grpc,simonkuang/grpc,wangyikai/grpc,ncteisen/grpc,tengyifei/grpc,firebase/grpc,apolcyn/grpc,infinit/grpc,pszemus/grpc,msmania/grpc,vjpai/grpc,surround-io/grpc,soltanmm-google/grpc,kpayson64/grpc,jtattermusch/grpc,y-zeng/grpc,VcamX/grpc,gpndata/grpc,madongfly/grpc,larsonmpdx/grpc,tengyifei/grpc,adelez/grpc,fichter/grpc,simonkuang/grpc,maxwell-demon/grpc,ppietrasa/grpc,leifurhauks/grpc,Crevil/grpc,andrewpollock/grpc,crast/grpc,tengyifei/grpc,PeterFaiman/ruby-grpc-minimal,tamihiro/grpc,yinsu/grpc,tamihiro/grpc,yang-g/grpc,dgquintas/grpc,ppietrasa/grpc,greasypizza/grpc,philcleveland/grpc,jtattermusch/grpc,firebase/grpc,cgvarela/grpc,soltanmm/grpc,podsvirov/grpc,thunderboltsid/grpc,zhimingxie/grpc,daniel-j-born/grpc,JoeWoo/grpc,Crevil/grpc,philcleveland/grpc,ppietrasa/grpc,murgatroid99/grpc,deepaklukose/grpc,thunderboltsid/grpc,sreecha/grpc,zhimingxie/grpc,fichter/grpc,crast/grpc,royalharsh/grpc,nicolasnoble/grpc,nicolasnoble/grpc,goldenbull/grpc,msmania/grpc,stanley-cheung/grpc,bjori/grpc,madongfly/grpc,chrisdunelm/grpc,baylabs/grpc,royalharsh/grpc,ncteisen/grpc,pmarks-net/grpc,malexzx/grpc,miselin/grpc,maxwell-demon/grpc,vjpai/grpc,quizlet/grpc,larsonmpdx/grpc,yang-g/grpc,donnadionne/grpc,wcevans/grpc,sreecha/grpc,yugui/grpc,murgatroid99/grpc,muxi/grpc,LuminateWireless/grpc,grani/grpc,mehrdada/grpc,geffzhang/grpc,MakMukhi/grpc,daniel-j-born/grpc,kpayson64/grpc,yugui/grpc,msmania/grpc,yang-g/grpc,grpc/grpc,greasypizza/grpc,vjpai/grpc,geffzhang/grpc,firebase/grpc,jboeuf/grpc,yinsu/grpc,arkmaxim/grpc,MakMukhi/grpc,madongfly/grpc,perumaalgoog/grpc,grani/grpc,tempbottle/grpc,tengyifei/grpc,chrisdunelm/grpc,Vizerai/grpc,7anner/grpc,podsvirov/grpc,tamihiro/grpc,murgatroid99/grpc,larsonmpdx/grpc,ppietrasa/grpc,LuminateWireless/grpc,baylabs/grpc,grani/grpc,quizlet/grpc,fuchsia-mirror/third_party-grpc,madongfly/grpc,Crevil/grpc,madongfly/grpc,grani/grpc,dklempner/grpc,maxwell-demon/grpc,donnadionne/grpc,malexzx/grpc,doubi-workshop/grpc,MakMukhi/grpc,adelez/grpc,dgquintas/grpc,arkmaxim/grpc,w4-sjcho/grpc,tengyifei/grpc,chrisdunelm/grpc,VcamX/grpc,mehrdada/grpc,greasypizza/grpc,nicolasnoble/grpc,bogdandrutu/grpc,soltanmm-google/grpc,w4-sjcho/grpc,deepaklukose/grpc,surround-io/grpc,y-zeng/grpc,baylabs/grpc,matt-kwong/grpc,quizlet/grpc,carl-mastrangelo/grpc,ipylypiv/grpc,jcanizales/grpc,vsco/grpc,firebase/grpc,fuchsia-mirror/third_party-grpc,a11r/grpc,rjshade/grpc,geffzhang/grpc,yongni/grpc,doubi-workshop/grpc,perumaalgoog/grpc,fuchsia-mirror/third_party-grpc,makdharma/grpc,daniel-j-born/grpc,Vizerai/grpc,gpndata/grpc,arkmaxim/grpc,vsco/grpc,bjori/grpc,vsco/grpc,Vizerai/grpc,podsvirov/grpc,hstefan/grpc,fuchsia-mirror/third_party-grpc,kumaralokgithub/grpc,vjpai/grpc,doubi-workshop/grpc,tempbottle/grpc,larsonmpdx/grpc,hstefan/grpc,ananthonline/grpc,deepaklukose/grpc,jboeuf/grpc,ctiller/grpc,ncteisen/grpc,Crevil/grpc,madongfly/grpc,vjpai/grpc,sreecha/grpc,7anner/grpc,tamihiro/grpc,Vizerai/grpc,goldenbull/grpc,crast/grpc,soltanmm/grpc,chrisdunelm/grpc,royalharsh/grpc,geffzhang/grpc,leifurhauks/grpc,yang-g/grpc,doubi-workshop/grpc,msmania/grpc,jboeuf/grpc,arkmaxim/grpc,msmania/grpc,crast/grpc,msiedlarek/grpc,donnadionne/grpc,jtattermusch/grpc,cgvarela/grpc,pszemus/grpc,ejona86/grpc,pszemus/grpc,a11r/grpc,jtattermusch/grpc,donnadionne/grpc,malexzx/grpc,pszemus/grpc,thinkerou/grpc,JoeWoo/grpc,kskalski/grpc,y-zeng/grpc,royalharsh/grpc,makdharma/grpc,daniel-j-born/grpc,soltanmm/grpc,jtattermusch/grpc,goldenbull/grpc,kpayson64/grpc,kskalski/grpc,adelez/grpc,podsvirov/grpc,baylabs/grpc,leifurhauks/grpc,ipylypiv/grpc,a11r/grpc,muxi/grpc,yinsu/grpc,mehrdada/grpc,baylabs/grpc,kriswuollett/grpc,apolcyn/grpc,crast/grpc,ofrobots/grpc,perumaalgoog/grpc,baylabs/grpc,nicolasnoble/grpc,ppietrasa/grpc,muxi/grpc,zhimingxie/grpc,malexzx/grpc,stanley-cheung/grpc,thinkerou/grpc,carl-mastrangelo/grpc,kumaralokgithub/grpc,msiedlarek/grpc,kskalski/grpc,wangyikai/grpc,fichter/grpc,yinsu/grpc,JoeWoo/grpc,rjshade/grpc,ipylypiv/grpc,thinkerou/grpc,kriswuollett/grpc,leifurhauks/grpc,msmania/grpc,arkmaxim/grpc,infinit/grpc,baylabs/grpc,surround-io/grpc,stanley-cheung/grpc,leifurhauks/grpc,MakMukhi/grpc,ncteisen/grpc,ejona86/grpc,grpc/grpc,malexzx/grpc,daniel-j-born/grpc,ofrobots/grpc,andrewpollock/grpc,infinit/grpc,kskalski/grpc,vjpai/grpc,tamihiro/grpc,podsvirov/grpc,firebase/grpc,soltanmm-google/grpc,murgatroid99/grpc,kumaralokgithub/grpc,thunderboltsid/grpc,jboeuf/grpc,bjori/grpc,matt-kwong/grpc,yugui/grpc,zhimingxie/grpc,bogdandrutu/grpc,gpndata/grpc,matt-kwong/grpc,jtattermusch/grpc,greasypizza/grpc,ppietrasa/grpc,geffzhang/grpc,surround-io/grpc,VcamX/grpc,kumaralokgithub/grpc,pszemus/grpc,ejona86/grpc,fichter/grpc,jboeuf/grpc,vsco/grpc,podsvirov/grpc,ipylypiv/grpc,jcanizales/grpc,yugui/grpc,a11r/grpc,ejona86/grpc,crast/grpc,goldenbull/grpc,jtattermusch/grpc,LuminateWireless/grpc,rjshade/grpc,ctiller/grpc,maxwell-demon/grpc,jboeuf/grpc,thinkerou/grpc,nicolasnoble/grpc,grpc/grpc,kriswuollett/grpc,tamihiro/grpc,murgatroid99/grpc,ipylypiv/grpc,bjori/grpc,jtattermusch/grpc,simonkuang/grpc,ipylypiv/grpc,msiedlarek/grpc,doubi-workshop/grpc,ctiller/grpc,gpndata/grpc,jboeuf/grpc,goldenbull/grpc,pszemus/grpc,larsonmpdx/grpc,bogdandrutu/grpc,quizlet/grpc,kpayson64/grpc,tempbottle/grpc,murgatroid99/grpc,perumaalgoog/grpc,nicolasnoble/grpc,Crevil/grpc,jcanizales/grpc,tamihiro/grpc,rjshade/grpc,yugui/grpc,doubi-workshop/grpc,grani/grpc,7anner/grpc,msiedlarek/grpc,carl-mastrangelo/grpc,ncteisen/grpc,tengyifei/grpc,rjshade/grpc,andrewpollock/grpc,cgvarela/grpc,ananthonline/grpc,VcamX/grpc,pmarks-net/grpc,pszemus/grpc,thinkerou/grpc,soltanmm/grpc,bogdandrutu/grpc,JoeWoo/grpc,sreecha/grpc,dklempner/grpc,ejona86/grpc,JoeWoo/grpc,philcleveland/grpc,wcevans/grpc,hstefan/grpc,tamihiro/grpc,andrewpollock/grpc,Vizerai/grpc,ctiller/grpc,gpndata/grpc,JoeWoo/grpc,soltanmm/grpc,vsco/grpc,jboeuf/grpc,a-veitch/grpc,arkmaxim/grpc,deepaklukose/grpc,stanley-cheung/grpc,kpayson64/grpc,yongni/grpc,yugui/grpc,jcanizales/grpc,doubi-workshop/grpc,pmarks-net/grpc,VcamX/grpc,malexzx/grpc,jcanizales/grpc,thinkerou/grpc,firebase/grpc,apolcyn/grpc,thunderboltsid/grpc,matt-kwong/grpc,soltanmm-google/grpc,nicolasnoble/grpc,msiedlarek/grpc,y-zeng/grpc,cgvarela/grpc,ncteisen/grpc,hstefan/grpc,kriswuollett/grpc,bogdandrutu/grpc,dgquintas/grpc,perumaalgoog/grpc,VcamX/grpc,donnadionne/grpc,muxi/grpc,dgquintas/grpc,fichter/grpc,yinsu/grpc,ncteisen/grpc,pszemus/grpc,muxi/grpc,matt-kwong/grpc,vjpai/grpc,royalharsh/grpc,bogdandrutu/grpc,soltanmm-google/grpc,yongni/grpc,nicolasnoble/grpc,yang-g/grpc,msiedlarek/grpc,madongfly/grpc,rjshade/grpc,daniel-j-born/grpc,simonkuang/grpc,w4-sjcho/grpc,philcleveland/grpc,mehrdada/grpc,adelez/grpc,infinit/grpc,a-veitch/grpc,vjpai/grpc,yugui/grpc,fuchsia-mirror/third_party-grpc,ananthonline/grpc,gpndata/grpc,muxi/grpc,wangyikai/grpc,mehrdada/grpc,fichter/grpc,y-zeng/grpc,LuminateWireless/grpc,dklempner/grpc,vjpai/grpc,wangyikai/grpc,ejona86/grpc,dklempner/grpc,quizlet/grpc,vjpai/grpc,cgvarela/grpc,ejona86/grpc,yang-g/grpc,ofrobots/grpc,grani/grpc,jboeuf/grpc,soltanmm-google/grpc,adelez/grpc,matt-kwong/grpc,grpc/grpc,carl-mastrangelo/grpc,nicolasnoble/grpc,sreecha/grpc,surround-io/grpc,matt-kwong/grpc,tempbottle/grpc,nicolasnoble/grpc,malexzx/grpc,ofrobots/grpc,soltanmm/grpc,fichter/grpc,ncteisen/grpc,ppietrasa/grpc,tempbottle/grpc,7anner/grpc,grpc/grpc,firebase/grpc,JoeWoo/grpc,pszemus/grpc,yang-g/grpc,kpayson64/grpc,kskalski/grpc,ipylypiv/grpc,sreecha/grpc,nicolasnoble/grpc,LuminateWireless/grpc,fuchsia-mirror/third_party-grpc,maxwell-demon/grpc,yugui/grpc,maxwell-demon/grpc,andrewpollock/grpc,daniel-j-born/grpc,kpayson64/grpc,thunderboltsid/grpc,7anner/grpc,fichter/grpc,w4-sjcho/grpc,kskalski/grpc,tempbottle/grpc,larsonmpdx/grpc,jtattermusch/grpc,murgatroid99/grpc,surround-io/grpc,Vizerai/grpc,ejona86/grpc,kriswuollett/grpc,miselin/grpc,dklempner/grpc,PeterFaiman/ruby-grpc-minimal,tengyifei/grpc,chrisdunelm/grpc,soltanmm-google/grpc,ofrobots/grpc,yongni/grpc,wangyikai/grpc,goldenbull/grpc,a-veitch/grpc,geffzhang/grpc,mehrdada/grpc,geffzhang/grpc,yongni/grpc,hstefan/grpc,jcanizales/grpc,wcevans/grpc,vjpai/grpc,bjori/grpc,JoeWoo/grpc,carl-mastrangelo/grpc,daniel-j-born/grpc,andrewpollock/grpc,7anner/grpc,philcleveland/grpc,muxi/grpc,carl-mastrangelo/grpc,andrewpollock/grpc,a-veitch/grpc,PeterFaiman/ruby-grpc-minimal,stanley-cheung/grpc,donnadionne/grpc,ncteisen/grpc,thinkerou/grpc,wcevans/grpc,LuminateWireless/grpc,makdharma/grpc,matt-kwong/grpc,PeterFaiman/ruby-grpc-minimal,adelez/grpc,firebase/grpc,Crevil/grpc,MakMukhi/grpc,chrisdunelm/grpc,ctiller/grpc,carl-mastrangelo/grpc,LuminateWireless/grpc,msiedlarek/grpc,kumaralokgithub/grpc,yinsu/grpc,andrewpollock/grpc,ofrobots/grpc,leifurhauks/grpc,murgatroid99/grpc,rjshade/grpc,chrisdunelm/grpc,y-zeng/grpc,jcanizales/grpc,kumaralokgithub/grpc,muxi/grpc,infinit/grpc,a-veitch/grpc,grpc/grpc,Vizerai/grpc,tengyifei/grpc,bjori/grpc,doubi-workshop/grpc,madongfly/grpc,perumaalgoog/grpc,bjori/grpc,muxi/grpc,grani/grpc,goldenbull/grpc,carl-mastrangelo/grpc,tengyifei/grpc,apolcyn/grpc,thunderboltsid/grpc,Vizerai/grpc,ananthonline/grpc,firebase/grpc,donnadionne/grpc,maxwell-demon/grpc,yinsu/grpc,MakMukhi/grpc,a-veitch/grpc,makdharma/grpc,pmarks-net/grpc,goldenbull/grpc,sreecha/grpc,kskalski/grpc,cgvarela/grpc,fuchsia-mirror/third_party-grpc,stanley-cheung/grpc,kriswuollett/grpc,geffzhang/grpc,infinit/grpc,y-zeng/grpc,royalharsh/grpc,philcleveland/grpc,thinkerou/grpc,msmania/grpc,tamihiro/grpc,mehrdada/grpc,carl-mastrangelo/grpc,royalharsh/grpc,dklempner/grpc,mehrdada/grpc,cgvarela/grpc,a11r/grpc,wcevans/grpc,PeterFaiman/ruby-grpc-minimal,7anner/grpc,msmania/grpc,Crevil/grpc,kumaralokgithub/grpc,apolcyn/grpc,perumaalgoog/grpc,kriswuollett/grpc,ananthonline/grpc,jboeuf/grpc,ananthonline/grpc,arkmaxim/grpc,vsco/grpc,dklempner/grpc,vsco/grpc,fuchsia-mirror/third_party-grpc,w4-sjcho/grpc,makdharma/grpc,firebase/grpc,crast/grpc,wcevans/grpc,greasypizza/grpc,grpc/grpc,simonkuang/grpc,Vizerai/grpc,pszemus/grpc,y-zeng/grpc,leifurhauks/grpc,fuchsia-mirror/third_party-grpc,jtattermusch/grpc,simonkuang/grpc,yang-g/grpc,chrisdunelm/grpc,dgquintas/grpc,a11r/grpc,infinit/grpc,kriswuollett/grpc,donnadionne/grpc,Vizerai/grpc,thinkerou/grpc,wangyikai/grpc,msmania/grpc,zhimingxie/grpc,quizlet/grpc,leifurhauks/grpc,firebase/grpc,philcleveland/grpc,apolcyn/grpc,ctiller/grpc,kumaralokgithub/grpc,donnadionne/grpc,makdharma/grpc,PeterFaiman/ruby-grpc-minimal,dgquintas/grpc,w4-sjcho/grpc,podsvirov/grpc,baylabs/grpc,maxwell-demon/grpc,deepaklukose/grpc,sreecha/grpc,ipylypiv/grpc,pmarks-net/grpc,msiedlarek/grpc,royalharsh/grpc,ncteisen/grpc,grani/grpc,surround-io/grpc,mehrdada/grpc,soltanmm/grpc,gpndata/grpc,soltanmm/grpc,zhimingxie/grpc,w4-sjcho/grpc,y-zeng/grpc,ofrobots/grpc,bogdandrutu/grpc,dgquintas/grpc,daniel-j-born/grpc,miselin/grpc,baylabs/grpc,quizlet/grpc,ctiller/grpc,kskalski/grpc,jboeuf/grpc,malexzx/grpc,Vizerai/grpc,yongni/grpc,yongni/grpc,PeterFaiman/ruby-grpc-minimal,doubi-workshop/grpc,stanley-cheung/grpc,Crevil/grpc,yongni/grpc,pmarks-net/grpc,sreecha/grpc,miselin/grpc,bjori/grpc,apolcyn/grpc,carl-mastrangelo/grpc,quizlet/grpc,simonkuang/grpc,Crevil/grpc,grpc/grpc,cgvarela/grpc,sreecha/grpc,ofrobots/grpc,bogdandrutu/grpc,PeterFaiman/ruby-grpc-minimal,PeterFaiman/ruby-grpc-minimal,kpayson64/grpc,carl-mastrangelo/grpc,thunderboltsid/grpc,ejona86/grpc,kpayson64/grpc,dgquintas/grpc,fuchsia-mirror/third_party-grpc,grpc/grpc,deepaklukose/grpc,MakMukhi/grpc,yang-g/grpc,perumaalgoog/grpc,dklempner/grpc,hstefan/grpc,simonkuang/grpc,apolcyn/grpc,matt-kwong/grpc,bogdandrutu/grpc,malexzx/grpc,ctiller/grpc,ofrobots/grpc,soltanmm-google/grpc,tempbottle/grpc,ncteisen/grpc,grani/grpc,murgatroid99/grpc,PeterFaiman/ruby-grpc-minimal,maxwell-demon/grpc,a-veitch/grpc,pmarks-net/grpc,leifurhauks/grpc,madongfly/grpc,a11r/grpc,MakMukhi/grpc,zhimingxie/grpc