components/cluster/resource-agents-openindiana/files/haproxy

   1 #!/bin/bash
   2 #
   3 # Resource script for haproxy daemon
   4 #
   5 # Description:  Manages haproxy daemon as an OCF resource in
   6 #               an High Availability setup.
   7 #
   8 # HAProxy OCF script's Author: Andreas Grueninger
   9 # License: BSD
  10 # Copyright 2016 Andreas Grueninger, Grueninger GmbH, (grueni). All rights reserved.
  11 #
  12 #
  13 #       usage: $0 {start|stop|status|monitor|validate-all|meta-data}
  14 #
  15 #       The "start" arg starts haproxy.
  16 #
  17 #       The "stop" arg stops it.
  18 #
  19 # OCF parameters:
  20 # OCF_RESKEY_binpath
  21 # OCF_RESKEY_conffile
  22 # OCF_RESKEY_extraconf
  23 #
  24 # Note:This RA requires that the haproxy config files has a "pidfile"
  25 # entry so that it is able to act on the correct process
  26 ##########################################################################
  27 # Initialization:
  28
  29 : ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/heartbeat}
  30 . ${OCF_FUNCTIONS_DIR}/.ocf-shellfuncs
  31
  32 USAGE="Usage: $0 {start|stop|status|monitor|validate-all|meta-data}";
  33
  34 ##########################################################################
  35
  36 usage()
  37 {
  38         echo $USAGE >&2
  39 }
  40
  41 meta_data()
  42 {
  43 cat <<END
  44 <?xml version="1.0"?>
  45 <!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
  46 <resource-agent name="haproxy">
  47 <version>1.0</version>
  48 <longdesc lang="en">
  49 This script manages haproxy daemon
  50 </longdesc>
  51 <shortdesc lang="en">Manages an haproxy daemon</shortdesc>
  52
  53 <parameters>
  54
  55 <parameter name="binpath">
  56 <longdesc lang="en">
  57 The haproxy binary path.
  58 For example, "/usr/sbin/haproxy"
  59 </longdesc>
  60 <shortdesc lang="en">Full path to the haproxy binary</shortdesc>
  61 <content type="string" default="/usr/sbin/haproxy"/>
  62 </parameter>
  63
  64 <parameter name="conffile">
  65 <longdesc lang="en">
  66 The haproxy daemon configuration file name with full path.
  67 For example, "/etc/haproxy/haproxy.cfg"
  68 </longdesc>
  69 <shortdesc lang="en">Configuration file name with full path</shortdesc>
  70 <content type="string" default="/etc/haproxy/haproxy.cfg" />
  71 </parameter>
  72
  73 <parameter name="extraconf">
  74 <longdesc lang="en">
  75 Extra command line arguments to pass to haproxy.
  76 For example, "-f /etc/haproxy/shared.cfg"
  77 </longdesc>
  78 <shortdesc lang="en">Extra command line arguments for haproxy</shortdesc>
  79 <content type="string" default="" />
  80 </parameter>
  81
  82 </parameters>
  83
  84 <actions>
  85 <action name="start" timeout="20s"/>
  86 <action name="stop" timeout="20s"/>
  87 <action name="monitor" depth="0" timeout="20s" interval="60s" />
  88 <action name="validate-all" timeout="20s"/>
  89 <action name="meta-data"  timeout="5s"/>
  90 </actions>
  91 </resource-agent>
  92 END
  93 exit $OCF_SUCCESS
  94 }
  95
  96 get_pid_and_conf_file()
  97 {
  98         if [ -n "$OCF_RESKEY_conffile" ]; then
  99                 CONF_FILE=$OCF_RESKEY_conffile
 100         else
 101                 CONF_FILE="/etc/haproxy/haproxy.cfg"
 102         fi
 103
 104         PIDFILE="`grep -v \"#\" ${CONF_FILE} | grep \"pidfile\" | sed 's/^[ \t]*pidfile[ \t]*//'`"
 105         if [ "${PIDFILE}" = '' ]; then
 106                 PIDFILE="/var/run/${OCF_RESOURCE_INSTANCE}.pid"
 107         fi
 108 }
 109
 110 haproxy_status()
 111 {
 112         if [ -n "$PIDFILE" -a -f "$PIDFILE" ]; then
 113                 # haproxy is probably running
 114                 PID=`cat $PIDFILE`
 115                 if [ -n "$PID" ]; then
 116                         if ps -p $PID | grep haproxy >/dev/null ; then
 117 #                               ocf_log info "haproxy daemon running"
 118                                 return $OCF_SUCCESS
 119                         else
 120                                 ocf_log info "haproxy daemon is not running but pid file exists"
 121                                 return $OCF_NOT_RUNNING
 122                         fi
 123                 else
 124                         ocf_log err "PID file empty!"
 125                         return $OCF_ERR_GENERIC
 126                 fi
 127         fi
 128
 129         # haproxy is not running
 130         ocf_log info "haproxy daemon is not running"
 131         return $OCF_NOT_RUNNING
 132 }
 133
 134 haproxy_start()
 135 {
 136         # if haproxy is running return success
 137         haproxy_status
 138         retVal=$?
 139         if [ $retVal -eq $OCF_SUCCESS ]; then
 140                 exit $OCF_SUCCESS
 141         elif [ $retVal -ne $OCF_NOT_RUNNING ]; then
 142                 ocf_log err "Error. Unknown status."
 143                 exit $OCF_ERR_GENERIC
 144         fi
 145
 146         if [ -n "$OCF_RESKEY_binpath" ]; then
 147                 COMMAND="$OCF_RESKEY_binpath"
 148         else
 149                 COMMAND="/usr/sbin/haproxy"
 150         fi
 151
 152         mkdir -p /var/run/haproxy
 153         $COMMAND $OCF_RESKEY_extraconf -D -f $CONF_FILE -p $PIDFILE;
 154         if [ $? -ne 0 ]; then
 155                 ocf_log err "Error. haproxy daemon returned error $?."
 156                 exit $OCF_ERR_GENERIC
 157         fi
 158
 159         ocf_log info "Started haproxy daemon."
 160         exit $OCF_SUCCESS
 161 }
 162
 163
 164 haproxy_stop()
 165 {
 166         if haproxy_status ; then
 167                 PID=`cat $PIDFILE`
 168                 if [ -n "$PID" ] ; then
 169                         kill $PID
 170                         if [ $? -ne 0 ]; then
 171                                 kill -SIGKILL $PID
 172                                 if [ $? -ne 0 ]; then
 173                                         ocf_log err "Error. Could not stop haproxy daemon."
 174                                         return $OCF_ERR_GENERIC
 175                                 fi
 176                         fi
 177                         rm $PIDFILE 2>/dev/null
 178                 fi
 179         fi
 180         ocf_log info "Stopped haproxy daemon."
 181         exit $OCF_SUCCESS
 182 }
 183
 184 haproxy_monitor()
 185 {
 186         haproxy_status
 187 }
 188
 189 haproxy_validate_all()
 190 {
 191         if [ -n "$OCF_RESKEY_binpath" -a ! -x "$OCF_RESKEY_binpath" ]; then
 192                 ocf_log err "Binary path $OCF_RESKEY_binpath does not exist."
 193                 exit $OCF_ERR_ARGS
 194         fi
 195         if [ -n "$OCF_RESKEY_conffile" -a ! -f "$OCF_RESKEY_conffile" ]; then
 196                 ocf_log err "Config file $OCF_RESKEY_conffile does not exist."
 197                 exit $OCF_ERR_ARGS
 198         fi
 199
 200         if  grep -v "^#" "$CONF_FILE" | grep "pidfile" > /dev/null ; then
 201                 :
 202         else
 203                 ocf_log err "Error. \"pidfile\" entry required in the haproxy config file by haproxy OCF RA."
 204                 return $OCF_ERR_GENERIC
 205         fi
 206
 207         return $OCF_SUCCESS
 208 }
 209
 210
 211 #
 212 # Main
 213 #
 214
 215 if [ $# -ne 1 ]; then
 216         usage
 217         exit $OCF_ERR_ARGS
 218 fi
 219
 220 case $1 in
 221         start)  get_pid_and_conf_file
 222                 haproxy_start
 223                 ;;
 224
 225         stop)   get_pid_and_conf_file
 226                 haproxy_stop
 227                 ;;
 228
 229         status) get_pid_and_conf_file
 230                 haproxy_status
 231                 ;;
 232
 233         monitor)get_pid_and_conf_file
 234                 haproxy_monitor
 235                 ;;
 236
 237         validate-all)   get_pid_and_conf_file
 238                         haproxy_validate_all
 239                         ;;
 240
 241         meta-data)      meta_data
 242                         ;;
 243
 244         usage)  usage
 245                 exit $OCF_SUCCESS
 246                 ;;
 247
 248         *)      usage
 249                 exit $OCF_ERR_UNIMPLEMENTED
 250                 ;;
 251 esac