PREIN

/bin/sh

/usr/sbin/groupadd -r asterisk &>/dev/null || :
/usr/sbin/useradd  -r -s /sbin/nologin -d /var/lib/asterisk -M \
                               -c 'Asterisk User' -g asterisk asterisk &>/dev/null || :

PREUN

/bin/sh

if [ "$1" -eq "0" ]; then
        # Package removal, not upgrade
        /bin/systemctl --no-reload disable asterisk.service > /dev/null 2>&1 || :
        /bin/systemctl stop asterisk.service > /dev/null 2>&1 || :
fi

POSTIN

/bin/sh

if [ $1 -eq 1 ] ; then
        /bin/systemctl daemon-reload >/dev/null 2>&1 || :
fi

POSTUN

/bin/sh

/bin/systemctl daemon-reload >/dev/null 2>&1 || :
if [ $1 -ge 1 ] ; then
    # Package upgrade, not uninstall
    /bin/systemctl try-restart asterisk.service >/dev/null 2>&1 || :
fi

Triggers

asterisk < 1.8.2.4-2

/bin/sh

# Save the current service runlevel info
# User must manually run systemd-sysv-convert --apply asterisk
# to migrate them to systemd targets
/usr/bin/systemd-sysv-convert --save asterisk >/dev/null 2>&1 ||:

# Run these because the SysV package being removed won't do them
/sbin/chkconfig --del asterisk >/dev/null 2>&1 || :
/bin/systemctl try-restart asterisk.service >/dev/null 2>&1 || :