Use Label instruction

create_dockerfile.sh

@@ -9,7 +9,7 @@ create_dockerfile() {
   cat >"${DOCKERFILE}" <<EOF
 FROM ${base}:${dist}
 
-MAINTAINER Victor Seva <[email protected]>
+LABEL maintainer="Victor Seva <[email protected]>"
 
 # Important! Update this no-op ENV variable when this Dockerfile
 # is updated with the current date. It will force refresh of all