test images: Updates agnhost guestbook
test images: Updates agnhost guestbook

A previous PR replaced the usage of Redis in the guestbook app test
with Agnhost. The replacement went well for Linux setups and Containers,
which is why the tests are green, but there is a network particularity on
Windows setups which won't allow the test to pass.

The issue was observed with another test hitting the same issue:
https://github.com/kubernetes/kubernetes/issues/83072

Here's exactly what happens during the test:

- frontend containers are created, having the /guestbook endpoint. Its main
  purpose is to forward the call to either agnhost-master (cmd=set), or
  agnhost-slave (cmd=get).
- agnhost-master container is created, having the /set endpoint, and the
  /register endpoint, through which the agnhost-slave containers would
  register to it. Its purpose is to propagate all data received through /set
  to its clients.
- agnhost-slave containers are created, having the /set and /get endpoints.
  They would register to agnhost-master, and then receive any and all updates
  from it, which was then served through the /get endpoint.

For simplicity, all 3 types have the same agnhost subcommand (agnhost guestbook), being
able to satisfy its given purpose. For this, HTTP servers were being used, including
for the /register endpoints. agnhost-master would send its /set updates as /set HTTP
requests. However, because of the issue listed above, agnhost-master did not receive
the client's IP, but rather the container host's IP, resulting in the request being
sent to the wrong destination.

This PR updates the agnhost guestbook subcommand. Now, the agnhost subscriber nodes will
send their own IP to the /register endpoint (/endpoint?host=myip).

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