OCFS2_DRBD

   1 #!/bin/sh
   2 #
   3 # OCF RA for OCFS2 on DRBD
   4 #
   5 # Copyright (c) 2008,2009 Barton IT-Consulting
   6 # Copyright (c) 2004 SUSE LINUX AG, Lars Marowsky-Brée
   7 #                    All Rights Reserved.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of version 2 of the GNU General Public License as
  11 # published by the Free Software Foundation.
  12 #
  13 # This program is distributed in the hope that it would be useful, but
  14 # WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  16 #
  17 # Further, this software is distributed without any warranty that it is
  18 # free of the rightful claim of any third person regarding infringement
  19 # or the like.  Any license provided herein, whether implied or
  20 # otherwise, applies only to this software file.  Patent licenses, if
  21 # any, provided herein do not apply to combinations of this program with
  22 # other software, or any other product whatsoever.
  23 #
  24 # You should have received a copy of the GNU General Public License
  25 # along with this program; if not, write the Free Software Foundation,
  26 # Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  27 #
  28
  29 # Initialization:
  30 . ${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs
  31
  32 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  33
  34 meta_data() {
  35         cat <<END
  36 <?xml version="1.0"?>
  37 <!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
  38 <resource-agent name="OCFS2_DRBD">
  39 <version>1.4</version>
  40
  41 <longdesc lang="en">
  42 This Resource Agent starts and stops OCFS2 file systems located on DRBD devices.
  43 </longdesc>
  44 <shortdesc lang="en">OCFS2 on DRBD resource agent</shortdesc>
  45
  46 <parameters>
  47 <parameter name="drbd" unique="1">
  48 <longdesc lang="en">ID of the DRBD resource</longdesc>
  49 <shortdesc lang="en">ID of the DRBD resource</shortdesc>
  50 <content type="string" default="" />
  51 </parameter>
  52 <parameter name="drbd_dev" unique="1">
  53 <longdesc lang="en">DRBD device</longdesc>
  54 <shortdesc lang="en">DRBD device</shortdesc>
  55 <content type="string" default="" />
  56 </parameter>
  57 <parameter name="mountpoint" unique="1">
  58 <longdesc lang="en">Mountpoint for OCFS2 filesystem</longdesc>
  59 <shortdesc lang="en">Mountpoint for OCFS2 filesystem</shortdesc>
  60 <content type="string" default="" />
  61 </parameter>
  62 </parameters>
  63
  64 <actions>
  65 <action name="start" timeout="90" />
  66 <action name="stop" timeout="90" />
  67 <action name="monitor" timeout="20" interval="30" depth="0" start-delay="10" />
  68 <action name="meta-data" timeout="5" />
  69 <action name="verify-all" timeout="30" />
  70 </actions>
  71 </resource-agent>
  72 END
  73 }
  74
  75 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  76
  77 ClusterFS_usage() {
  78         echo "usage: $0 {start|stop|monitor|validate-all|meta-data}"
  79 }
  80
  81 ClusterFS_start() {
  82         mkdir -p "$OCF_RESKEY_mountpoint"
  83         drbdadm primary "$OCF_RESKEY_drbd"
  84         if [ $? -ne 0 ]; then
  85                 return $OCF_ERR_GENERIC
  86         fi
  87         mount -t ocfs2 "$OCF_RESKEY_drbd_dev" "$OCF_RESKEY_mountpoint"
  88         if [ $? -ne 0 ]; then
  89                 return $OCF_ERR_GENERIC
  90         fi
  91         return $OCF_SUCCESS
  92 }
  93
  94 ClusterFS_stop() {
  95         mount | grep "$OCF_RESKEY_drbd_dev on " >/dev/null
  96         if [ $? -eq 0 ]; then
  97                 umount "$OCF_RESKEY_mountpoint"
  98                 if [ $? -ne 0 ]; then
  99                         # try harder, kill processes on this filesystem
 100                         pids=$(ps ax|awk "{print \$1}"|grep -v PID)
 101                         for p in $pids; do
 102                                 lsof -p $p -n | grep " $OCF_RESKEY_mountpoint" \
 103                                  >/dev/null 2>&1
 104                                 [ $? -eq 0 ] || continue
 105                                 kill $p
 106                         done
 107                         sleep 3
 108                         pids=$(ps ax|awk "{print \$1}"|grep -v PID)
 109                         for p in $pids; do
 110                                 lsof -p $p -n | grep " $OCF_RESKEY_mountpoint" \
 111                                  >/dev/null 2>&1
 112                                 [ $? -eq 0 ] || continue
 113                                 kill -9 $p
 114                         done
 115                         sleep 1
 116                         umount "$OCF_RESKEY_mountpoint"
 117                         if [ $? -ne 0 ]; then
 118                                 return $OCF_ERR_GENERIC
 119                         fi
 120                 fi
 121         fi
 122         drbdadm secondary "$OCF_RESKEY_drbd"
 123         return $OCF_SUCCESS
 124 }
 125
 126 ClusterFS_monitor() {
 127         mount | grep "$OCF_RESKEY_drbd_dev on " >/dev/null
 128         if [ $? -eq 0 ]; then
 129                 return $OCF_SUCCESS
 130         fi
 131         return $OCF_NOT_RUNNING
 132 }
 133
 134 ClusterFS_validate() {
 135         if [ -z "$OCF_RESKEY_drbd" ]; then
 136                 return $OCF_ERR_ARGS
 137         fi
 138         if [ -z "$OCF_RESKEY_drbd_dev" ]; then
 139                 return $OCF_ERR_ARGS
 140         fi
 141         if [ -z "$OCF_RESKEY_mountpoint" ]; then
 142                 return $OCF_ERR_ARGS
 143         fi
 144         return $OCF_SUCCESS
 145 }
 146
 147 case $__OCF_ACTION in
 148         meta-data)
 149                 meta_data
 150                 exit $OCF_SUCCESS
 151                 ;;
 152         start)
 153                 ClusterFS_start
 154                 ;;
 155         stop)
 156                 ClusterFS_stop
 157                 ;;
 158         monitor)
 159                 ClusterFS_monitor
 160                 ;;
 161         validate-all)
 162                 ClusterFS_validate
 163                 ;;
 164         usage|help)
 165                 ClusterFS_usage
 166                 exit $OCF_SUCCESS
 167                 ;;
 168         *)
 169                 ClusterFS_usage
 170                 exit $OCF_ERR_UNIMPLEMENTED
 171                 ;;
 172 esac
 173
 174 rc=$?
 175 ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
 176 exit $rc
 177
 178 # -eof-