Propagate Things by Shell/rsync

propagatestuff.sh

#!/bin/sh
#
# SERVICES is a space-separated list of services to reload
# FILES is a list of configuration files to propagate from localhost to $HOSTS
# HOSTS is a list of servers to propagate things to.
#
# Assumes that some kind of passwordless SSH is already setup.

RELOADSERVICES=""
RESTARTSERVICES="varnish"
FILES="/etc/sysconfig/varnish /etc/varnish/default.vcl /tmp/test.txt /etc/sysctl.conf"
HOSTS="10.0.0.1 10.0.0.2 10.0.0.3"
for h in $HOSTS; do
    for f in $FILES; do
        rsync -vaPh $f root@$h:$f
    done
    for s in $RELOADSERVICES; do
        ssh $h service $s reload
    done
    for s in $RESTARTSERVICES; do
        ssh $h service $s restart
    done
    ssh $h sysctl -p
done