postinst is in rabbitmq-server 3.5.7-1ubuntu0.16.04.2.
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.
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set -e
if [ "$1" = "configure" ] || [ "$1" = "reconfigure" ] ; then
# create rabbitmq group
if ! getent group rabbitmq >/dev/null; then
addgroup --system rabbitmq
fi
# create rabbitmq user
if ! getent passwd rabbitmq >/dev/null; then
adduser --system \
--ingroup rabbitmq \
--home /var/lib/rabbitmq \
--no-create-home \
--gecos "RabbitMQ messaging server" \
--disabled-login rabbitmq
fi
mkdir -p /etc/rabbitmq
chown rabbitmq:rabbitmq /etc/rabbitmq
if [ -f /etc/rabbitmq/rabbitmq.conf ] && [ ! -f /etc/rabbitmq/rabbitmq-env.conf ]; then
mv /etc/rabbitmq/rabbitmq.conf /etc/rabbitmq/rabbitmq-env.conf
chown rabbitmq:rabbitmq /etc/rabbitmq/rabbitmq-env.conf
fi
if [ -r /usr/share/rabbitmq/rabbitmq-env.conf ] && ! [ -e /etc/rabbitmq/rabbitmq-env.conf ] ; then
install -m 0644 -o rabbitmq -g rabbitmq /usr/share/rabbitmq/rabbitmq-env.conf /etc/rabbitmq/rabbitmq-env.conf
fi
if [ -f /etc/rabbitmq/enabled_plugins ] ; then
chown rabbitmq:rabbitmq /etc/rabbitmq/enabled_plugins
fi
chown -R rabbitmq:rabbitmq /var/lib/rabbitmq
chown -R rabbitmq:rabbitmq /var/log/rabbitmq
fi
# Automatically added by dh_systemd_enable
# This will only remove masks created by d-s-h on package removal.
deb-systemd-helper unmask rabbitmq-server.service >/dev/null || true
# was-enabled defaults to true, so new installations run enable.
if deb-systemd-helper --quiet was-enabled rabbitmq-server.service; then
# Enables the unit on first installation, creates new
# symlinks on upgrades if the unit file has changed.
deb-systemd-helper enable rabbitmq-server.service >/dev/null || true
else
# Update the statefile to add new symlinks (if any), which need to be
# cleaned up on purge. Also remove old symlinks.
deb-systemd-helper update-state rabbitmq-server.service >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_installinit
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
if [ -x "/etc/init.d/rabbitmq-server" ]; then
update-rc.d rabbitmq-server defaults >/dev/null
fi
if [ -x "/etc/init.d/rabbitmq-server" ] || [ -e "/etc/init/rabbitmq-server.conf" ]; then
invoke-rc.d rabbitmq-server start || exit $?
fi
fi
# End automatically added section
exit 0
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