main: add a helper function for starting raft
main: add a helper function for starting raft

nekto0n/etcd,wowsoso/etcd,sinsharat/etcd,Eagle-X/etcd,hongchaodeng/etcd,xdlinear/etcd,etcd-io/etcd,lorneli/etcd,dterei/etcd,dterei/etcd,Winslett/etcd,westhood/etcd,HideoYamauchi/etcd,betawaffle/etcd,ajityagaty/etcd,handsomesun/etcd,visheshnp/etcd,yyljlyy/etcd,mickep76/etcd,mwitkow-io/etcd,endocode/etcd,purpleidea/etcd,devfreesg/etcd,sofuture/etcd,elimisteve/etcd,bspline/etcd,wfxiang08/etcd,Yhgenomics/etcd,akauppi/etcd,svdata/etcd,crandles/etcd,mgoelzer/etcd-fork2,coreos/etcd,bluebreezecf/etcd,nieanan/etcd,a-robinson/etcd,onlyjob/etcd,sayden/etcd,luxas/etcd,oscarrr110/etcd,gosharplite/etcd,sayden/etcd,whuwxl/etcd,xueshanf/etcd,njharman/etcd,gae123/etcd,westhood/etcd,youxidev/etcd,hongbinz/etcd,raoofm/etcd,dannysauer/etcd,etcd-io/etcd,bakins/etcd,Timer/etcd,barakmich/etcd,mitake/etcd,insionng/etcd,CrazyJvm/etcd,rnaveiras/etcd,fgbreel/etcd,justintung/etcd,lzbgt/etcd,handsomesun/etcd,jchauncey/etcd,rnaveiras/etcd,raoofm/etcd,honeyqa/etcd,zaphod-concur/etcd,giantswarm/etcd,visheshnp/etcd,yifan-gu/etcd,rnaveiras/etcd,achanda/etcd,devfreesg/etcd,dalanlan/etcd,sofuture/etcd,endocode/etcd,msanterre/etcd,yichengq/etcd,onlyjob/etcd,mqliang/etcd,ylong/etcd,tamird/etcd,improbable-io/etcd,dnaeon/etcd,StorReduce/etcd,nkhare/etcd,pigfoot/etcd,yudai/etcd,gyuho/etcd,fgbreel/etcd,asim/etcd,hpcloud/etcd,zaphod-concur/etcd,bdarnell/etcd,wantonsolutions/dinv-etcd,qqsun8819/etcd,gtank/etcd,freeloop1114/etcd,rchicoli/etcd,giantswarm/etcd,fasaxc/etcd,glevand/coreos--etcd,delkyd/etcd,gae123/etcd,mwitkow-io/etcd,sebschrader/etcd,buaazp/etcd,kingland/etcd,jefby/etcd,li-ang/etcd,arthurcolle/etcd,qiaochao911/etcd,njucslqq/etcd,hzy001/etcd,StorReduce/etcd,tangkun75/etcd,HideoYamauchi/etcd,nieanan/etcd,glensc/etcd,ecnahc515/etcd,sinsharat/etcd,xebitstudios/etcd,jlamillan/etcd,openedbox/etcd,iamqizhao/etcd,wfxiang08/etcd,gyuho/etcd,tguangch/etcd,Eagle-X/etcd,dalanlan/etcd,bakins/etcd,OyTao/etcd_learning,mischief/etcd,tempbottle/etcd,bluebreezecf/etcd,njucslqq/etcd,mgoelzer/etcd-fork2,buaazp/etcd,mqliang/etcd,siddontang/etcd,lzbgt/etcd,crandles/etcd,hongbinz/etcd,jeremyeder/etcd,njharman/etcd,ajityagaty/etcd,insionng/etcd,svdata/etcd,YuleiXiao/etcd,swingbach/etcd,shawnps/etcd,mkumatag/etcd,bspline/etcd,spacejam/etcd,honeyqa/etcd,dannysauer/etcd,iamqizhao/etcd,mike-lerch/etcd,hroyrh/etcd,plasticbox/etcd,etcd-io/etcd,olark/etcd,armstrongli/etcd,fasaxc/etcd,chenbaihu/etcd,cognusion/etcd,CrazyJvm/etcd,gtank/etcd,insequent/etcd,gouyang/etcd,mischief/etcd,oscarrr110/etcd,wantonsolutions/dinv-etcd,siddontang/etcd,QuantiumTechnology/etcd,SivagnanamCiena/etcd,rchicoli/etcd,ktateish/etcd,snailwalker/etcd,pengzj/etcd,xiang90/etcd,wowsoso/etcd,gosharplite/etcd,fanminshi/etcd,chai2010-playground/etcd,luxas/etcd,steveeJ/etcd,pauldallen/etcd,csuideal/etcd,coreos/etcd,purpleidea/etcd,pauldallen/etcd,armstrongli/etcd,jravetch/etcd,combk8s/etcd,delkyd/etcd,heyitsanthony/etcd,axingblog/etcd,ravigadde/etcd,kkaneda/etcd,hroyrh/etcd,chai2010/etcd,shafreeck/etcd,beni55/etcd,YuleiXiao/etcd,jravetch/etcd,axingblog/etcd,shawnps/etcd,li-ang/etcd,chai2010-playground/etcd,vimalk78/etcd,kingland/etcd,youxidev/etcd,snailwalker/etcd,glevand/coreos--etcd,gityf/etcd,steveeJ/etcd,hpcloud/etcd,combk8s/etcd,ravigadde/etcd,joshix/etcd,heyitsanthony/etcd,mkumatag/etcd,pengzj/etcd,kkaneda/etcd,shakefu/etcd,tguangch/etcd,polvi/etcd,chenbaihu/etcd,junxu/etcd,achanda/etcd,xueshanf/etcd,nkhare/etcd,spacejam/etcd,sebrandon1/etcd,mike-lerch/etcd,akauppi/etcd,xdlinear/etcd,lumjjb/etcd,junxu/etcd,linuxcer/etcd,insequent/etcd,cockroachdb/etcd,offscale/etcd,tempbottle/etcd,hongchaodeng/etcd,yifan-gu/etcd,mqliang/etcd,robszumski/etcd,princeqjzh/etcd,ylong/etcd,cchamplin/etcd,Winslett/etcd,bdarnell/etcd,sebschrader/etcd,nekto0n/etcd,jonboulle/etcd,vimalk78/etcd,glensc/etcd,lorneli/etcd,tamird/etcd,OyTao/etcd_learning,lumjjb/etcd,TheHippo/etcd,offscale/etcd,xiang90/etcd,openedbox/etcd,gityf/etcd,cockroachdb/etcd,sebrandon1/etcd,jeremyeder/etcd,cchamplin/etcd,jmptrader/etcd,robszumski/etcd,justintung/etcd,jmptrader/etcd,shafreeck/etcd,chai2010/etcd,beni55/etcd,xychu/etcd,wantonsolutions/dinv-etcd,jefby/etcd,imzhulei/etcd,fasaxc/etcd,mwitkow/etcd,linuxcer/etcd,Yhgenomics/etcd,chipironcin/etcd,improbable-io/etcd,QuantiumTechnology/etcd,arthurcolle/etcd,yichengq/etcd,msanterre/etcd,mickep76/etcd,mitake/etcd,olark/etcd,jlamillan/etcd,swingbach/etcd,fanminshi/etcd,imzhulei/etcd,es-chow/etcd,betawaffle/etcd,hzy001/etcd,qiaochao911/etcd,elimisteve/etcd,whuwxl/etcd,yyljlyy/etcd,shakefu/etcd,gouyang/etcd,xychu/etcd,jonboulle/etcd,barakmich/etcd,xebitstudios/etcd,yudai/etcd,qqsun8819/etcd,joshix/etcd,chipironcin/etcd,dnaeon/etcd,asim/etcd,a-robinson/etcd,glycerine/etcd,tangkun75/etcd,glycerine/etcd,plasticbox/etcd,cognusion/etcd,mkumatag/etcd,jchauncey/etcd,es-chow/etcd,mwitkow/etcd,freeloop1114/etcd,TheHippo/etcd,SivagnanamCiena/etcd,ajityagaty/etcd,csuideal/etcd,Timer/etcd,princeqjzh/etcd,polvi/etcd,ecnahc515/etcd,ktateish/etcd