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#!/bin/sh
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set -eu
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DEBIAN_FRONTEND=noninteractive apt-get -yq purge $(dpkg-query -W -f='${binary:Package}\n' 'linux-image-4*' 'linux-headers-4*' | grep -v $(uname -r))
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DEBIAN_FRONTEND=noninteractive apt-get -yq clean
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chsh --shell '/usr/sbin/nologin' packer
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