Use apk's no-cache flag in Dockerfile (#1591)
Use apk's no-cache flag in Dockerfile (#1591)


jremond/coredns,miekg/coredns,yongtang/coredns,ii/coredns,miekg/coredns,coredns/coredns,ii/coredns,jremond/coredns,johnbelamaric/coredns,johnbelamaric/coredns,chrisohaver/coredns