pvc-ansible/roles/base/templates/usr/local/sbin/dpkg-cleanup.sh.j2

#!/bin/bash

# dpkg-cleanup.sh - Remove obsolete packages and config files
# {{ ansible_managed }}

export DEBIAN_FRONTEND=noninteractive

# Phase 1 - purge `rc` packages
PACKAGE_LIST=( $( dpkg --list | awk '/^rc/{ print $2 } /^ri/{ print $2 }' ) )
apt purge -y ${PACKAGE_LIST[@]}

# Phase 2 - autoremove packages
apt autoremove --purge -y

# Phase 3 - clean archives
apt clean

# Phase 4 - find and remove obsolete config files
OLD_FILES_LIST=( $( find /etc -type f -a \( -name '*.dpkg-*' -o -name '*.ucf-*' -o -name '*.update-*' \) 2>/dev/null ) )
rm -f ${OLD_FILES_LIST[@]}