prepend credential provider flags on ubuntu also
prepend credential provider flags on ubuntu also

jingxu97/kubernetes,kubernetes/kubernetes,jingxu97/kubernetes,aledbf/kubernetes,nikhita/kubernetes,csrwng/kubernetes,mikebrow/kubernetes,olivierlemasle/kubernetes,ii/kubernetes,matthyx/kubernetes,jsafrane/kubernetes,rnaveiras/kubernetes,jessfraz/kubernetes,feiskyer/kubernetes,jingxu97/kubernetes,dims/kubernetes,csrwng/kubernetes,li-ang/kubernetes,olivierlemasle/kubernetes,kubernetes/kubernetes,linux-on-ibm-z/kubernetes,alejandroEsc/kubernetes,warmchang/kubernetes,dims/kubernetes,rrati/kubernetes,mkumatag/kubernetes,lojies/kubernetes,mengqiy/kubernetes,ii/kubernetes,nikhita/kubernetes,mengqiy/kubernetes,BenTheElder/kubernetes,kevin-wangzefeng/kubernetes,csrwng/kubernetes,shyamjvs/kubernetes,shyamjvs/kubernetes,jackfrancis/kubernetes,verb/kubernetes,carlory/kubernetes,kevin-wangzefeng/kubernetes,dims/kubernetes,mkumatag/kubernetes,dixudx/kubernetes,mahak/kubernetes,dixudx/kubernetes,verb/kubernetes,ravilr/kubernetes,GulajavaMinistudio/kubernetes,mosoft521/kubernetes,lojies/kubernetes,jessfraz/kubernetes,mkumatag/kubernetes,shyamjvs/kubernetes,olivierlemasle/kubernetes,aledbf/kubernetes,PiotrProkop/kubernetes,liggitt/kubernetes,lojies/kubernetes,soltysh/kubernetes,verb/kubernetes,warmchang/kubernetes,jsafrane/kubernetes,MikeSpreitzer/kubernetes,ping035627/kubernetes,chestack/kubernetes,jsafrane/kubernetes,dixudx/kubernetes,BenTheElder/kubernetes,li-ang/kubernetes,zhangmingld/kubernetes,BenTheElder/kubernetes,PiotrProkop/kubernetes,jessfraz/kubernetes,gnufied/kubernetes,kevin-wangzefeng/kubernetes,openshift/kubernetes,deads2k/kubernetes,rnaveiras/kubernetes,enj/kubernetes,ravilr/kubernetes,soltysh/kubernetes,openshift/kubernetes,rnaveiras/kubernetes,dixudx/kubernetes,jessfraz/kubernetes,mikebrow/kubernetes,chestack/kubernetes,alejandroEsc/kubernetes,shyamjvs/kubernetes,jessfraz/kubernetes,iameli/kubernetes,openshift/kubernetes,thockin/kubernetes,k82cn/kubernetes,MikeSpreitzer/kubernetes,deads2k/kubernetes,bparees/kubernetes,zhangmingld/kubernetes,mahak/kubernetes,thockin/kubernetes,rrati/kubernetes,MikeSpreitzer/kubernetes,thockin/kubernetes,matthyx/kubernetes,gnufied/kubernetes,alejandroEsc/kubernetes,mosoft521/kubernetes,chestack/kubernetes,kubernetes/kubernetes,thockin/kubernetes,gnufied/kubernetes,warmchang/kubernetes,rnaveiras/kubernetes,bparees/kubernetes,nikhita/kubernetes,GulajavaMinistudio/kubernetes,matthyx/kubernetes,jingxu97/kubernetes,warmchang/kubernetes,iameli/kubernetes,BenTheElder/kubernetes,cblecker/kubernetes,MikeSpreitzer/kubernetes,iameli/kubernetes,ravilr/kubernetes,feiskyer/kubernetes,cblecker/kubernetes,mkumatag/kubernetes,PiotrProkop/kubernetes,zhangmingld/kubernetes,ii/kubernetes,csrwng/kubernetes,liggitt/kubernetes,fabriziopandini/kubernetes,mahak/kubernetes,GulajavaMinistudio/kubernetes,linux-on-ibm-z/kubernetes,tengqm/kubernetes,carlory/kubernetes,gnufied/kubernetes,GulajavaMinistudio/kubernetes,liggitt/kubernetes,mkumatag/kubernetes,jingxu97/kubernetes,BenTheElder/kubernetes,mosoft521/kubernetes,fabriziopandini/kubernetes,olivierlemasle/kubernetes,cblecker/kubernetes,mikebrow/kubernetes,thockin/kubernetes,matthyx/kubernetes,verb/kubernetes,nikhita/kubernetes,ii/kubernetes,rrati/kubernetes,fabriziopandini/kubernetes,jackfrancis/kubernetes,iameli/kubernetes,enj/kubernetes,tengqm/kubernetes,dims/kubernetes,liggitt/kubernetes,chestack/kubernetes,li-ang/kubernetes,GulajavaMinistudio/kubernetes,enj/kubernetes,deads2k/kubernetes,mikebrow/kubernetes,csrwng/kubernetes,linux-on-ibm-z/kubernetes,feiskyer/kubernetes,mosoft521/kubernetes,k82cn/kubernetes,deads2k/kubernetes,jackfrancis/kubernetes,aledbf/kubernetes,PiotrProkop/kubernetes,bparees/kubernetes,verb/kubernetes,zhouhaibing089/kubernetes,fabriziopandini/kubernetes,iameli/kubernetes,k82cn/kubernetes,rrati/kubernetes,nikhita/kubernetes,carlory/kubernetes,ping035627/kubernetes,kubernetes/kubernetes,k82cn/kubernetes,liggitt/kubernetes,bparees/kubernetes,kevin-wangzefeng/kubernetes,bparees/kubernetes,openshift/kubernetes,gnufied/kubernetes,zhangmingld/kubernetes,zhangmingld/kubernetes,MikeSpreitzer/kubernetes,ping035627/kubernetes,ii/kubernetes,feiskyer/kubernetes,zhouhaibing089/kubernetes,mahak/kubernetes,shyamjvs/kubernetes,dixudx/kubernetes,kevin-wangzefeng/kubernetes,chestack/kubernetes,mengqiy/kubernetes,ravilr/kubernetes,carlory/kubernetes,matthyx/kubernetes,aledbf/kubernetes,mengqiy/kubernetes,soltysh/kubernetes,alejandroEsc/kubernetes,zhouhaibing089/kubernetes,ping035627/kubernetes,mikebrow/kubernetes,lojies/kubernetes,tengqm/kubernetes,olivierlemasle/kubernetes,lojies/kubernetes,kubernetes/kubernetes,carlory/kubernetes,alejandroEsc/kubernetes,soltysh/kubernetes,openshift/kubernetes,PiotrProkop/kubernetes,li-ang/kubernetes,tengqm/kubernetes,enj/kubernetes,soltysh/kubernetes,aledbf/kubernetes,rnaveiras/kubernetes,zhouhaibing089/kubernetes,tengqm/kubernetes,jackfrancis/kubernetes,jsafrane/kubernetes,k82cn/kubernetes,feiskyer/kubernetes,linux-on-ibm-z/kubernetes,ping035627/kubernetes,zhangmingld/kubernetes,cblecker/kubernetes,jackfranci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