dracut/modules.d/98syslog/rsyslogd-start.sh

#!/bin/sh
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh

# Triggered by udev and starts rsyslogd with bootparameters

type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh

rsyslog_config() {
    local server=$1
    shift
    local syslog_template=$1
    shift
    local filters=$*
    local filter=

    cat $syslog_template

    for filter in $filters; do
        echo "${filter} @${server}"
    done
#       echo "*.* /tmp/syslog"
}

read server < /tmp/syslog.server
read filters < /tmp/syslog.filters
[ -z "$filters" ] && filters="kern.*"
read conf < /tmp/syslog.conf
[ -z "$conf" ] && conf="/etc/rsyslog.conf" && echo "$conf" > /tmp/syslog.conf

template=/etc/templates/rsyslog.conf
if [ -n "$server" ]; then
    rsyslog_config "$server" "$template" "$filters" > $conf
    rsyslogd -c3
fi