Fix the bug that the contents of ca-key.pem was that of ca.pem
Fix the bug that the contents of ca-key.pem was that of ca.pem

camilb/kube-aws,HotelsDotCom/kube-aws,camilb/kube-aws,iflix-letsplay/kube-aws,kubernetes-incubator/kube-aws,HotelsDotCom/kube-aws,iflix-letsplay/kube-aws,c-knowles/kube-aws,danielfm/kube-aws,kubernetes-incubator/kube-aws,c-knowles/kube-aws,danielfm/kube-aws