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|
#!/bin/bash
#
# Copyright (c) 2014 Anand Subramanian anands@redhat.com
# Copyright (c) 2015 Red Hat Inc.
# All Rights Reserved.
#
# 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}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
if [ -n "${OCF_DEBUG_LIBRARY}" ]; then
. ${OCF_DEBUG_LIBRARY}
else
: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
fi
# Defaults
OCF_RESKEY_ganesha_active_default="ganesha-active"
OCF_RESKEY_grace_active_default="grace-active"
OCF_RESKEY_grace_delay_default="5"
: ${OCF_RESKEY_ganesha_active=${OCF_RESKEY_ganesha_active_default}}
: ${OCF_RESKEY_grace_active=${OCF_RESKEY_grace_active_default}}
: ${OCF_RESKEY_grace_delay=${OCF_RESKEY_grace_delay_default}}
ganesha_meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="ganesha_mon">
<version>1.0</version>
<longdesc lang="en">
This Linux-specific resource agent acts as a dummy
resource agent for nfs-ganesha.
</longdesc>
<shortdesc lang="en">Manages the user-space nfs-ganesha NFS server</shortdesc>
<parameters>
<parameter name="ganesha_active">
<longdesc lang="en">NFS-Ganesha daemon active attribute</longdesc>
<shortdesc lang="en">NFS-Ganesha daemon active attribute</shortdesc>
<content type="string" default="ganesha-active" />
</parameter>
<parameter name="grace_active">
<longdesc lang="en">NFS-Ganesha grace active attribute</longdesc>
<shortdesc lang="en">NFS-Ganesha grace active attribute</shortdesc>
<content type="string" default="grace-active" />
</parameter>
<parameter name="grace_delay">
<longdesc lang="en">
NFS-Ganesha grace delay.
When changing this, adjust the ganesha_grace RA's monitor interval to match.
</longdesc>
<shortdesc lang="en">NFS-Ganesha grace delay</shortdesc>
<content type="string" default="5" />
</parameter>
</parameters>
<actions>
<action name="start" timeout="40s" />
<action name="stop" timeout="40s" />
<action name="status" timeout="20s" interval="60s" />
<action name="monitor" depth="0" timeout="10s" interval="10s" />
<action name="meta-data" timeout="20s" />
</actions>
</resource-agent>
END
return ${OCF_SUCCESS}
}
ganesha_mon_usage() {
echo "ganesha.nfsd USAGE"
}
# Make sure meta-data and usage always succeed
case ${__OCF_ACTION} in
meta-data) ganesha_meta_data
exit ${OCF_SUCCESS}
;;
usage|help) ganesha_usage
exit ${OCF_SUCCESS}
;;
*)
;;
esac
ganesha_mon_start()
{
ocf_log debug "ganesha_mon_start"
ganesha_mon_monitor
return $OCF_SUCCESS
}
ganesha_mon_stop()
{
ocf_log debug "ganesha_mon_stop"
return $OCF_SUCCESS
}
ganesha_mon_monitor()
{
local short_host=$(hostname -s)
local pid_file="/var/run/ganesha.nfsd.pid"
# RHEL6 /etc/init.d/nfs-ganesha adds -p /var/run/ganesha.nfsd.pid
# RHEL7 systemd does not. Would be nice if all distros used the
# same pid file.
if [ -e /usr/lib/systemd/system/nfs-ganesha.service ]; then
pid_file="/var/run/ganesha.pid"
fi
if [ -e ${pid_file} -a \
-d /proc/$(cat ${pid_file} ) ]; then
attrd_updater -n ${OCF_RESKEY_ganesha_active} -v 1
if [ $? -ne 0 ]; then
ocf_log info "warning: attrd_updater -n ${OCF_RESKEY_ganesha_active} -v 1 failed"
fi
# ganesha_grace (nfs-grace) RA follows grace-active attr
# w/ constraint location
attrd_updater -n ${OCF_RESKEY_grace_active} -v 1
if [ $? -ne 0 ]; then
ocf_log info "warning: attrd_updater -n ${OCF_RESKEY_grace_active} -v 1 failed"
fi
# ganesha_mon (nfs-mon) and ganesha_grace (nfs-grace)
# track grace-active crm_attr (attr != crm_attr)
# we can't just use the attr as there's no way to query
# its value in RHEL6 pacemaker
crm_attribute --node=${short_host} --lifetime=forever --name=${OCF_RESKEY_grace_active} --update=1
if [ $? -ne 0 ]; then
ocf_log info "warning: crm_attribute --node=${short_host} --lifetime=forever --name=${OCF_RESKEY_grace_active} --update=1 failed"
fi
return ${OCF_SUCCESS}
fi
# VIP fail-over is triggered by clearing the
# ganesha-active node attribute on this node.
#
# Meanwhile the ganesha_grace notify() runs when its
# nfs-grace resource is disabled on a node; which
# is triggered by clearing the grace-active attribute
# on this node.
#
# We need to allow time for it to run and put
# the remaining ganesha.nfsds into grace before
# initiating the VIP fail-over.
sleep ${OCF_RESKEY_grace_delay}
attrd_updater -D -n ${OCF_RESKEY_grace_active}
if [ $? -ne 0 ]; then
ocf_log info "warning: attrd_updater -D -n ${OCF_RESKEY_grace_active} failed"
fi
crm_attribute --node=${short_host} --name=${OCF_RESKEY_grace_active} --update=0
if [ $? -ne 0 ]; then
ocf_log info "warning: crm_attribute --node=${short_host} --name=${OCF_RESKEY_grace_active} --update=0 failed"
fi
return ${OCF_SUCCESS}
}
ganesha_mon_validate()
{
return ${OCF_SUCCESS}
}
ganesha_mon_validate
# Translate each action into the appropriate function call
case ${__OCF_ACTION} in
start) ganesha_mon_start
;;
stop) ganesha_mon_stop
;;
status|monitor) ganesha_mon_monitor
;;
*) ganesha_mon_usage
exit ${OCF_ERR_UNIMPLEMENTED}
;;
esac
rc=$?
# The resource agent may optionally log a debug message
ocf_log debug "${OCF_RESOURCE_INSTANCE} ${__OCF_ACTION} returned $rc"
exit $rc
|
