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#!/bin/bash
#
# This STONITH script integrates a cluster running within DomUs
# with the CRM/Pacemaker cluster running in Dom0.
#
# Author: Lars Marowsky-Bree
# Copyright: 2008 Lars Marowsky-Bree
# License: GNU General Public License (GPL)
#
SSH_COMMAND="@SSH@ -q -x -n"
HVM_HELPER="@stonith_plugindir@/xen0-ha-dom0-stonith-helper"
# Rewrite the hostlist to accept "," as a delimeter for hostnames too.
hostlist=`echo $hostlist | tr ',' ' '`
# Runs a command on the host, waiting for it to return
RunHVMCommand() {
$SSH_COMMAND $dom0_cluster_ip "$HVM_HELPER $1 $2 $stop_timeout"
}
# Main code
case $1 in
gethosts)
echo $hostlist
exit 0
;;
on|off|reset|status)
RunHVMCommand $1 $2
exit $?
;;
getconfignames)
echo "hostlist dom0_cluster_ip timeout"
exit 0
;;
getinfo-devid)
echo "xen0-ha DomU/Dom0 device"
exit 0
;;
getinfo-devname)
echo "xen0-ha DomU/Dom0 external device"
exit 0
;;
getinfo-devdescr)
echo "Allows STONITH to control DomUs managed by a CRM/Pacemaker Dom0."
echo "Requires Xen + CRM/Pacemaker at both layers."
echo "Proof-of-concept code!"
exit 0
;;
getinfo-devurl)
echo "http://linux-ha.org/wiki/DomUClusters"
exit 0
;;
getinfo-xml)
cat << SSHXML
<parameters>
<parameter name="hostlist" unique="1" required="1">
<content type="string" />
<shortdesc lang="en">
Hostlist
</shortdesc>
<longdesc lang="en">
The list of controlled DomUs, separated by whitespace.
These must be configured as Xen RA resources with a name with a matching
id.
For example: "xen-1 xen-2 xen-3"
</longdesc>
</parameter>
<parameter name="dom0_cluster_ip" unique="1" required="1">
<content type="string" />
<shortdesc lang="en">
Dom0 cluster ip
</shortdesc>
<longdesc lang="en">
The cluster IP address associated with Dom0.
Root user must be able to ssh to that node.
</longdesc>
</parameter>
<parameter name="stop_timeout">
<content type="integer" />
<shortdesc lang="en">
Stop timeout
</shortdesc>
<longdesc lang="en">
The timeout, in seconds, for which to wait for Dom0 to report that the
DomU has been stopped, before aborting with a failure.
</longdesc>
</parameter>
</parameters>
SSHXML
exit 0
;;
*)
exit 1
;;
esac
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