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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
OCF_RESKEY_grace_active_default="grace-active"
: ${OCF_RESKEY_grace_active=${OCF_RESKEY_grace_active_default}}
ganesha_meta_data() {
cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="ganesha_grace">
<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="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>
</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="5s" />
<action name="notify" timeout="10s" />
<action name="meta-data" timeout="20s" />
</actions>
</resource-agent>
END
return ${OCF_SUCCESS}
}
ganesha_grace_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 ${OCF_SUCCESS}
;;
*)
;;
esac
ganesha_grace_start()
{
local rc=${OCF_ERR_GENERIC}
local host=$(hostname -s)
ocf_log debug "ganesha_grace_start()"
# give ganesha_mon RA a chance to set the crm_attr first
# I mislike the sleep, but it's not clear that looping
# with a small sleep is necessarily better
# start has a 40sec timeout, so a 5sec sleep here is okay
sleep 5
attr=$(crm_attribute --query --node=${host} --name=${OCF_RESKEY_grace_active} 2> /dev/null)
if [ $? -ne 0 ]; then
host=$(hostname)
attr=$(crm_attribute --query --node=${host} --name=${OCF_RESKEY_grace_active} 2> /dev/null )
if [ $? -ne 0 ]; then
ocf_log info "grace start: crm_attribute --query --node=${host} --name=${OCF_RESKEY_grace_active} failed"
fi
fi
# Three possibilities:
# 1. There is no attribute at all and attr_updater returns
# a zero length string. This happens when
# ganesha_mon::monitor hasn't run at least once to set
# the attribute. The assumption here is that the system
# is coming up. We pretend, for now, that the node is
# healthy, to allow the system to continue coming up.
# It will cure itself in a few seconds
# 2. There is an attribute, and it has the value "1"; this
# node is healthy.
# 3. There is an attribute, but it has no value or the value
# "0"; this node is not healthy.
# case 1
if [[ -z "${attr}" ]]; then
return ${OCF_SUCCESS}
fi
# case 2
if [[ "${attr}" = *"value=1" ]]; then
return ${OCF_SUCCESS}
fi
# case 3
return ${OCF_NOT_RUNNING}
}
ganesha_grace_stop()
{
ocf_log debug "ganesha_grace_stop()"
return ${OCF_SUCCESS}
}
ganesha_grace_notify()
{
# since this is a clone RA we should only ever see pre-start
# or post-stop
mode="${OCF_RESKEY_CRM_meta_notify_type}-${OCF_RESKEY_CRM_meta_notify_operation}"
case "${mode}" in
pre-start | post-stop)
dbus-send --print-reply --system --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.ganesha.nfsd.admin.grace string:${OCF_RESKEY_CRM_meta_notify_stop_uname}
if [ $? -ne 0 ]; then
ocf_log info "dbus-send --print-reply --system --dest=org.ganesha.nfsd /org/ganesha/nfsd/admin org.ganesha.nfsd.admin.grace string:${OCF_RESKEY_CRM_meta_notify_stop_uname} failed"
fi
;;
esac
return ${OCF_SUCCESS}
}
ganesha_grace_monitor()
{
local rc=${OCF_ERR_GENERIC}
local host=$(hostname -s)
ocf_log debug "monitor"
attr=$(crm_attribute --query --node=${host} --name=${OCF_RESKEY_grace_active} 2> /dev/null)
if [ $? -ne 0 ]; then
host=$(hostname)
attr=$(crm_attribute --query --node=${host} --name=${OCF_RESKEY_grace_active} 2> /dev/null)
if [ $? -ne 0 ]; then
ocf_log info "crm_attribute --query --node=${host} --name=${OCF_RESKEY_grace_active} failed"
fi
fi
# if there is no attribute (yet), maybe it's because
# this RA started before ganesha_mon (nfs-mon) has had
# chance to create it. In which case we'll pretend
# everything is okay this time around
if [[ -z "${attr}" ]]; then
return ${OCF_SUCCESS}
fi
if [[ "${attr}" = *"value=1" ]]; then
rc=${OCF_SUCCESS}
fi
return ${rc}
}
ganesha_grace_validate()
{
return ${OCF_SUCCESS}
}
ganesha_grace_validate
# Translate each action into the appropriate function call
case $__OCF_ACTION in
start) ganesha_grace_start
;;
stop) ganesha_grace_stop
;;
status|monitor) ganesha_grace_monitor
;;
notify) ganesha_grace_notify
;;
*) ganesha_grace_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
|
