doc/heartbeat-ra/L7vsd

   1 #!/bin/sh
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of version 2 of the GNU General Public License as
   5 # published by the Free Software Foundation.
   6 #
   7 # This program is distributed in the hope that it would be useful, but
   8 # WITHOUT ANY WARRANTY; without even the implied warranty of
   9 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  10 #
  11 # Further, this software is distributed without any warranty that it is
  12 # free of the rightful claim of any third person regarding infringement
  13 # or the like.  Any license provided herein, whether implied or
  14 # otherwise, applies only to this software file.  Patent licenses, if
  15 # any, provided herein do not apply to combinations of this program with
  16 # other software, or any other product whatsoever.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write the Free Software Foundation,
  20 # Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  21 #
  22
  23 #######################################################################
  24 # Initialization:
  25
  26 . ${OCF_ROOT}/resource.d/heartbeat/.ocf-shellfuncs
  27
  28 L7SOCKFILE=${OCF_RESKEY_socket_default:-/var/run/l7vs/l7vs}
  29
  30 #######################################################################
  31
  32 meta_data() {
  33         cat <<END
  34 <?xml version="1.0"?>
  35 <!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
  36 <resource-agent name="L7vsd" version="1.0">
  37 <version>1.0</version>
  38
  39 <longdesc lang="en">
  40 This is a L7vsd Resource Agent.
  41 </longdesc>
  42 <shortdesc lang="en">L7vsd resource agent</shortdesc>
  43
  44 <parameters>
  45 <parameter name="socket" unique="0" required="0">
  46 <longdesc lang="en">
  47 The socket to be used for l7vsadm.
  48 </longdesc>
  49 <shortdesc lang="en">l7vsadm socket</shortdesc>
  50 <content type="string" default="${OCF_RESKEY_socket_default}"/>
  51 </parameter>
  52 </parameters>
  53
  54 <actions>
  55 <action name="start"        timeout="60" />
  56 <action name="stop"         timeout="60" />
  57 <action name="monitor"      timeout="60" interval="10" depth="0" start-delay="0" />
  58 <action name="meta-data"    timeout="5" />
  59 </actions>
  60 </resource-agent>
  61 END
  62 }
  63
  64 #######################################################################
  65
  66 l7vsd_usage() {
  67         cat <<END
  68 usage: $0 {start|stop|monitor|meta-data}
  69
  70 END
  71 }
  72
  73 ###############################
  74 # Resource start Method
  75 ###############################
  76 l7vsd_start() {
  77         ocf_log info "l7vsd is starting ..."
  78         l7vsd_monitor info
  79         RET=$?
  80         if [ $RET -eq $OCF_SUCCESS ]; then
  81                 ocf_log info "l7vsd is already running."
  82                 return $OCF_SUCCESS
  83         elif [ $RET -eq $OCF_NOT_RUNNING ]; then
  84                 L7SOCKDIR=`dirname L7SOCKFILE`
  85                 if [ ! -d $L7SOCKDIR ] ; then
  86                         ocf_log info "Creating l7vsadm socket dir: $L7SOCKDIR"
  87                         mkdir -p $L7SOCKDIR
  88                 fi
  89                 if [ -e $L7SOCKFILE ] ; then
  90                         ocf_log info "Delete l7vsadm socket filer: $L7SOCKFILE"
  91                         rm -rf $L7SOCKFILE
  92                 fi
  93                 /usr/sbin/l7vsd > /dev/null 2>&1
  94                 RET=$?
  95                 if [ $RET -ne 0 ]; then
  96                         MSG="l7vsd start error!"
  97                         outputLog err ${OCF_ERR_GENERIC} $MSG
  98                         return $OCF_ERR_GENERIC
  99                 fi
 100                 l7vsd_status
 101                 if [ $? -eq $OCF_SUCCESS ]; then
 102                         # l7vsd is running
 103                         ocf_log info "l7vsd starts."
 104                         return $OCF_SUCCSESS
 105                 fi
 106         fi
 107         MSG="l7vsd does not work. (ps=$RET) "
 108         outputLog err ${OCF_ERR_GENERIC} ${MSG}
 109         return $OCF_ERR_GENERIC
 110 }
 111
 112 ###############################
 113 # Resource stop Method
 114 ###############################
 115 l7vsd_stop() {
 116         ocf_log info "l7vsd stopping ..."
 117         l7vsd_status
 118         RET=$?
 119         if [ $RET -eq $OCF_NOT_RUNNING ]; then
 120                 ocf_log info "l7vsd stopped."
 121                 return $OCF_SUCCESS
 122         fi
 123         pkill -f "/usr/sbin/l7vsd"
 124         count=0
 125         while [ $count -le 10 ]
 126         do
 127                 l7vsd_status
 128                 RET=$?
 129                 if [ $RET -eq $OCF_NOT_RUNNING ]; then
 130                         ocf_log info "l7vsd stopped."
 131                         return $OCF_SUCCESS
 132                 fi
 133                 count=`expr $count + 1`
 134                 sleep 1
 135         done
 136         l7vsd_pkill
 137         RET=$?
 138         rm -rf $L7SOCKFILE
 139         return $RET
 140 }
 141
 142 ###############################
 143 # Logging Method
 144 ###############################
 145 outputLog(){
 146         MODE=$1
 147         shift
 148         case $MODE in
 149                 info)   RET=$1; shift;
 150                         ocf_log $MODE "[$0 ${__OCF_ACTION}] OK;return=$RET" "$@";;
 151                 err)    RET=$1; shift;
 152                         ocf_log $MODE "[$0 ${__OCF_ACTION}] NG;return=$RET" "$@";;
 153         esac
 154 }
 155
 156 ###############################
 157 # kill process
 158 ###############################
 159 l7vsd_pkill(){
 160         pkill -9 -f "/usr/sbin/l7vsd"
 161         ocf_log info "kill l7vsd process!"
 162         while true
 163         do
 164                 sleep 1
 165                 l7vsd_status
 166                 RET=$?
 167                 if [ $RET -eq $OCF_NOT_RUNNING ]; then
 168                      # stop OK
 169                      ocf_log info "l7vsd process stopped!"
 170                      return $OCF_SUCCESS
 171                 fi
 172         done
 173 }
 174
 175 ###############################
 176 # Get Resource Status Method
 177 ###############################
 178 l7vsd_status(){
 179         RET=0
 180         RET=`pgrep -fox "/usr/sbin/l7vsd" | wc -l`
 181         if [ $RET -eq 1 ]; then
 182                 return $OCF_SUCCESS
 183         elif [ $RET -eq 0 ]; then
 184                 MSG="l7vsd is not running."
 185                 outputLog $loglevel ${OCF_NOT_RUNNING} ${MSG}
 186                 return $OCF_NOT_RUNNING
 187         else
 188                 MSG="l7vsd status ERROR!: (ps=$RET)"
 189                 outputLog err ${OCF_ERR_GENERIC} ${MSG}
 190                 return $OCF_ERR_GENERIC
 191         fi
 192 }
 193
 194 ###############################
 195 # Get Resource Monitor Method
 196 ###############################
 197 l7vsd_monitor() {
 198         local loglevel
 199         loglevel=${1:-err}
 200         if ocf_is_probe; then
 201                 loglevel="info"
 202         fi
 203
 204         l7vsd_status
 205         RET=$?
 206         if [ $RET -eq $OCF_SUCCESS ]; then
 207                 # status OK
 208                 return $OCF_SUCCESS
 209         elif [ $RET -eq $OCF_NOT_RUNNING ]; then
 210                 # status NG
 211                 return $OCF_NOT_RUNNING
 212         fi
 213         MSG="l7vsd duplicated. "
 214         outputLog err ${OCF_ERR_GENERIC} ${MSG}
 215         return $OCF_ERR_GENERIC
 216 }
 217
 218 case $__OCF_ACTION in
 219 meta-data)      meta_data
 220                 exit $OCF_SUCCESS ;;
 221 start)          l7vsd_start;;
 222 stop)           l7vsd_stop;;
 223 monitor)        l7vsd_monitor;;
 224 usage|help)     l7vsd_usage
 225                 exit $OCF_SUCCESS
 226                 ;;
 227 *)              l7vsd_usage
 228                 exit $OCF_ERR_UNIMPLEMENTED
 229
 230                 ;;
 231 esac
 232 rc=$?
 233 ocf_log debug "${OCF_RESOURCE_INSTANCE} $__OCF_ACTION : $rc"
 234 exit $rc