#!/bin/sh updates_available () { if test "$(docker run -it --rm $1 /bin/sh -c 'apt -qqq update && apt -qq list --upgradable')" != ""; then return 0 else return 1 fi } if updates_available pommib/powerdns:4.4-bullseye; then ./debian/11/build.sh fi if updates_available pommib/powerdns:4.6-bookworm; then ./debian/12/build.sh fi