postinst is in nova-compute-libvirt 2:17.0.1-0ubuntu1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | #!/bin/sh -e
if [ "$1" = "configure" ]; then
# libvirt switched from libvirtd group to libvirt group in 1.3.3
libvirt_group=$(getent group libvirt) || true
libvirtd_group=$(getent group libvirtd) || true
if [ $libvirt_group ]; then
if ! echo $libvirt_group | grep -qE '\<nova\>'; then
adduser nova libvirt
fi
elif [ $libvirtd_group ]; then
if ! echo $libvirtd_group | grep -qE '\<nova\>'; then
adduser nova libvirtd
fi
fi
fi
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