diff options
Diffstat (limited to 'extras/ganesha/ocf/ganesha_mon')
| -rw-r--r-- | extras/ganesha/ocf/ganesha_mon | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/extras/ganesha/ocf/ganesha_mon b/extras/ganesha/ocf/ganesha_mon new file mode 100644 index 00000000000..2b4a9d6da84 --- /dev/null +++ b/extras/ganesha/ocf/ganesha_mon @@ -0,0 +1,234 @@ +#!/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 $OCF_SUCCESS +} + +ganesha_mon_monitor() +{ + local host=$(hostname -s) + local pid_file="/var/run/ganesha.pid" + local rhel6_pid_file="/var/run/ganesha.nfsd.pid" + local proc_pid="/proc/" + + # 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 ${rhel6_pid_file} ]; then + pid_file=${rhel6_pid_file} + fi + if [ -e ${pid_file} ]; then + proc_pid="${proc_pid}$(cat ${pid_file})" + fi + + if [ "x${proc_pid}" != "x/proc/" -a -d ${proc_pid} ]; 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 ${OCF_RESKEY_grace_active} -v 1 failed" + fi + + # ganesha_mon (nfs-mon) and ganesha_grace (nfs-grace) + # track grace-active crm_attr (attr != crm_attr) + # we can't just use the attr as there's no way to query + # its value in RHEL6 pacemaker + + crm_attribute --node=${host} --lifetime=forever --name=${OCF_RESKEY_grace_active} --update=1 2> /dev/null + if [ $? -ne 0 ]; then + host=$(hostname) + crm_attribute --node=${host} --lifetime=forever --name=${OCF_RESKEY_grace_active} --update=1 2> /dev/null + if [ $? -ne 0 ]; then + ocf_log info "mon monitor warning: crm_attribute --node=${host} --lifetime=forever --name=${OCF_RESKEY_grace_active} --update=1 failed" + fi + 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. + + attrd_updater -D -n ${OCF_RESKEY_grace_active} + if [ $? -ne 0 ]; then + ocf_log info "warning: attrd_updater -D -n ${OCF_RESKEY_grace_active} failed" + fi + + host=$(hostname -s) + crm_attribute --node=${host} --name=${OCF_RESKEY_grace_active} --update=0 2> /dev/null + if [ $? -ne 0 ]; then + host=$(hostname) + crm_attribute --node=${host} --name=${OCF_RESKEY_grace_active} --update=0 2> /dev/null + if [ $? -ne 0 ]; then + ocf_log info "mon monitor warning: crm_attribute --node=${host} --name=${OCF_RESKEY_grace_active} --update=0 failed" + fi + fi + + sleep ${OCF_RESKEY_grace_delay} + + attrd_updater -D -n ${OCF_RESKEY_ganesha_active} + if [ $? -ne 0 ]; then + ocf_log info "warning: attrd_updater -D -n ${OCF_RESKEY_ganesha_active} 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 |