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|
#!@BASH_SHELL@
#
#
# AoEtarget OCF RA.
# Manages an ATA-over-Ethernet (AoE) target utilizing the vblade utility.
#
# (c) 2009-2010 Florian Haas, Dejan Muhamedagic,
# and Linux-HA contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#
# Further, this software is distributed without any warranty that it is
# free of the rightful claim of any third person regarding infringement
# or the like. Any license provided herein, whether implied or
# otherwise, applies only to this software file. Patent licenses, if
# any, provided herein do not apply to combinations of this program with
# other software, or any other product whatsoever.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
#
######################################################################
# Initialization:
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
# Defaults
OCF_RESKEY_nic_default="eth0"
OCF_RESKEY_pid_default="${HA_RSCTMP}/AoEtarget-${OCF_RESOURCE_INSTANCE}.pid"
OCF_RESKEY_binary_default="/usr/sbin/vblade"
: ${OCF_RESKEY_nic=${OCF_RESKEY_nic_default}}
: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}}
: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}}
#######################################################################
meta_data() {
cat <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="AoEtarget" version="1.0">
<version>1.0</version>
<longdesc lang="en">
This resource agent manages an ATA-over-Ethernet (AoE) target using vblade.
It exports any block device, or file, as an AoE target using the
specified Ethernet device, shelf, and slot number.
</longdesc>
<shortdesc lang="en">Manages ATA-over-Ethernet (AoE) target exports</shortdesc>
<parameters>
<parameter name="device" required="1">
<longdesc lang="en">
The local block device (or file) to export as an AoE target.
</longdesc>
<shortdesc lang="en">Device to export</shortdesc>
<content type="string"/>
</parameter>
<parameter name="nic" required="1">
<longdesc lang="en">
The local Ethernet interface to use for exporting this AoE target.
</longdesc>
<shortdesc lang="en">Ethernet interface</shortdesc>
<content type="string" default="${OCF_RESKEY_nic_default}"/>
</parameter>
<parameter name="shelf" required="0">
<longdesc lang="en">
The AoE shelf number to use when exporting this target.
</longdesc>
<shortdesc lang="en">AoE shelf number</shortdesc>
<content type="integer"/>
</parameter>
<parameter name="slot" required="1">
<longdesc lang="en">
The AoE slot number to use when exporting this target.
</longdesc>
<shortdesc lang="en">AoE slot number</shortdesc>
<content type="integer"/>
</parameter>
<parameter name="pid" required="0" unique="1">
<longdesc lang="en">
The file to record the daemon pid to.
</longdesc>
<shortdesc lang="en">Daemon pid file</shortdesc>
<content type="string" default="${OCF_RESKEY_pid_default}"/>
</parameter>
<parameter name="binary" required="0">
<longdesc lang="en">
Location of the vblade binary.
</longdesc>
<shortdesc lang="en">vblade binary</shortdesc>
<content type="string" default="${OCF_RESKEY_binary_default}"/>
</parameter>
</parameters>
<actions>
<action name="start" timeout="15s"/>
<action name="stop" timeout="15s"/>
<action name="monitor" timeout="15s" interval="10s" depth="0"/>
<action name="reload" timeout="15s"/>
<action name="meta-data" timeout="5s"/>
<action name="validate-all" timeout="15s"/>
</actions>
</resource-agent>
EOF
}
#######################################################################
AoEtarget_usage() {
cat <<END
usage: $0 {start|stop|status|monitor|validate-all|meta-data}
Expects to have a fully populated OCF RA-compliant environment set.
END
}
AoEtarget_start() {
AoEtarget_monitor
if [ $? = $OCF_SUCCESS ]; then
return $OCF_SUCCESS
fi
ocf_log info "Exporting device ${OCF_RESKEY_device} on ${OCF_RESKEY_nic} as shelf ${OCF_RESKEY_shelf}, slot ${OCF_RESKEY_slot}"
${OCF_RESKEY_binary} ${OCF_RESKEY_shelf} ${OCF_RESKEY_slot} \
${OCF_RESKEY_nic} ${OCF_RESKEY_device} 2>&1 &
rc=$?
pid=$!
if [ $rc -ne 0 ]; then
return $OCF_ERR_GENERIC
fi
echo $pid > ${OCF_RESKEY_pid} && return $OCF_SUCCESS
return $OCF_ERR_GENERIC
}
AoEtarget_stop() {
AoEtarget_monitor
if [ $? -eq $OCF_SUCCESS ]; then
ocf_log info "Unxporting device ${OCF_RESKEY_device} on ${OCF_RESKEY_nic} as shelf ${OCF_RESKEY_shelf}, slot ${OCF_RESKEY_slot}"
pid=$(cat ${OCF_RESKEY_pid})
kill -TERM $pid
# loop until we're really stopped, wait for the LRM to time us
# out if not
while AoEtarget_monitor; do
sleep 1
done
fi
# Clean up pid file
rm -f ${OCF_RESKEY_pid}
return $OCF_SUCCESS
}
AoEtarget_monitor() {
ocf_pidfile_status ${OCF_RESKEY_pid} >/dev/null 2>&1
rc=$?
if [ $rc -eq 2 ]; then
# no pid file, must assume we're not running
return $OCF_NOT_RUNNING
elif [ $rc -eq 1 ]; then
# stale pid file, assume something went wrong
return $OCF_ERR_GENERIC
fi
return $OCF_SUCCESS
}
AoEtarget_validate() {
# Is our binary executable?
if [ ! -x ${OCF_RESKEY_binary} ]; then
ocf_log error "${OCF_RESKEY_binary} not found or not executable"
return $OCF_ERR_INSTALLED
fi
# Do we have all required variables?
for var in device nic shelf slot pid; do
param="OCF_RESKEY_${var}"
if [ -z "${!param}" ]; then
ocf_log error "Missing resource parameter \"$var\"!"
return $OCF_ERR_CONFIGURED
fi
done
# Is the pid file directory writable?
pid_dir=`dirname "$OCF_RESKEY_pid"`
touch "$pid_dir/$$"
if [ $? != 0 ]; then
ocf_log error "Cannot create pid file in $pid_dir -- check directory permissions"
return $OCF_ERR_INSTALLED
fi
rm "$pid_dir/$$"
# Does the device we are trying to export exist?
if [ ! -e ${OCF_RESKEY_device} ]; then
ocf_log error "${OCF_RESKEY_device} does not exist"
return $OCF_ERR_INSTALLED
fi
return $OCF_SUCCESS
}
case $1 in
meta-data)
meta_data
exit $OCF_SUCCESS
;;
usage|help)
AoEtarget_usage
exit $OCF_SUCCESS
;;
esac
# Everything except usage and meta-data must pass the validate test
AoEtarget_validate || exit $?
case $__OCF_ACTION in
start)
AoEtarget_start
;;
stop)
AoEtarget_stop
;;
status|monitor)
AoEtarget_monitor
;;
reload)
ocf_log err "Reloading..."
AoEtarget_start
;;
validate-all)
AoEtarget_validate
;;
*)
AoEtarget_usage
exit $OCF_ERR_UNIMPLEMENTED
;;
esac
rc=$?
ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
exit $rc
|
