scripts/service-floodlight.sh

   1 #!/bin/bash
   2
   3 ##
   4 # Copyright 2015 Telefónica Investigación y Desarrollo, S.A.U.
   5 # This file is part of openmano
   6 # All Rights Reserved.
   7 #
   8 # Licensed under the Apache License, Version 2.0 (the "License"); you may
   9 # not use this file except in compliance with the License. You may obtain
  10 # a copy of the License at
  11 #
  12 #         http://www.apache.org/licenses/LICENSE-2.0
  13 #
  14 # Unless required by applicable law or agreed to in writing, software
  15 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  16 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  17 # License for the specific language governing permissions and limitations
  18 # under the License.
  19 #
  20 # For those usages not covered by the Apache License, Version 2.0 please
  21 # contact with: nfvlabs@tid.es
  22 ##
  23
  24 #launch floodlight inside a screen. It assumes shell variable $FLOODLIGHT_PATH
  25 # contain the installation path
  26
  27
  28 DIRNAME=$(readlink -f ${BASH_SOURCE[0]})
  29 DIRNAME=$(dirname $DIRNAME )
  30 DIR_OM=$(dirname $DIRNAME )
  31
  32 function usage(){
  33     echo -e "Usage: $0 start|stop|restart|status"
  34     echo -e "  Launch|Removes|Restart|Getstatus floodlight on a screen"
  35     echo -e "  Shell variable FLOODLIGHT_PATH must indicate floodlight installationpath"
  36 }
  37
  38 function kill_pid(){
  39     #send TERM signal and wait 5 seconds and send KILL signal ir still running
  40     #PARAMS: $1: PID of process to terminate
  41     kill $1 #send TERM signal
  42     WAIT=5
  43     while [ $WAIT -gt 0 ] && ps -o pid -U $USER -u $USER | grep -q $1
  44     do
  45         sleep 1
  46         WAIT=$((WAIT-1))
  47         [ $WAIT -eq 0 ] && echo -n "sending SIGKILL...  " &&  kill -9 $1  #kill when count reach 0
  48     done
  49     echo "done"
  50
  51 }
  52
  53 #obtain parameters
  54 #om_action="start"  #uncoment to get a default action
  55 for param in $*
  56 do
  57     [ "$param" == "start" -o "$param" == "stop"  -o "$param" == "restart" -o "$param" == "status" ] && om_action=$param  && continue
  58     [ "$param" == "openflow" -o "$param" == "flow" -o "$param" == "floodlight" ] && continue
  59     [ "$param" == "-h" -o "$param" == "--help" ] && usage && exit 0
  60
  61     #if none of above, reach this line because a param is incorrect
  62     echo "Unknown param '$param' type $0 --help" >&2
  63     exit -1
  64 done
  65
  66 #check action is provided
  67 [ -z "$om_action" ] && usage >&2 && exit -1
  68
  69     om_cmd="floodlight.jar"
  70     om_name="floodlight"
  71
  72     #obtain PID of program
  73     component_id=`ps -o pid,cmd -U $USER -u $USER | grep -v grep | grep ${om_cmd} | awk '{print $1}'`
  74
  75     #status
  76     if [ "$om_action" == "status" ]
  77     then
  78         [ -n "$component_id" ] && echo "    $om_name running, pid $component_id"
  79         [ -z "$component_id" ] && echo "    $om_name stopped"
  80     fi
  81
  82     #stop
  83     if [ "$om_action" == "stop" -o "$om_action" == "restart" ]
  84     then
  85         #terminates program
  86         [ -n "$component_id" ] && echo -n "    stopping $om_name ... " && kill_pid $component_id
  87         component_id=""
  88         #terminates screen
  89         if screen -wipe | grep -Fq .flow
  90         then
  91             screen -S flow -p 0 -X stuff "exit\n"
  92             sleep 1
  93         fi
  94     fi
  95
  96     #start
  97     if [ "$om_action" == "start" -o "$om_action" == "restart" ]
  98     then
  99         [[ -z $FLOODLIGHT_PATH ]] && echo "FLOODLIGHT_PATH shell variable must indicate floodlight installation path" >&2 && exit -1
 100         #calculates log file name
 101         logfile=""
 102         mkdir -p $DIR_OM/logs && logfile=$DIR_OM/logs/openflow.log || echo "can not create logs directory  $DIR_OM/logs"
 103         #check already running
 104         [ -n "$component_id" ] && echo "    $om_name is already running. Skipping" && continue
 105         #create screen if not created
 106         echo -n "    starting $om_name ... "
 107         if ! screen -wipe | grep -Fq .flow
 108         then
 109             pushd ${FLOODLIGHT_PATH} > /dev/null
 110             screen -dmS flow  bash
 111             sleep 1
 112             popd > /dev/null
 113         else
 114             echo -n " using existing screen 'flow' ... "
 115             screen -S flow -p 0 -X log off
 116             screen -S flow -p 0 -X stuff "cd ${FLOODLIGHT_PATH}\n"
 117             sleep 1
 118         fi
 119         #move old log file index one number up and log again in index 0
 120         if [[ -n $logfile ]]
 121         then
 122             for index in 8 7 6 5 4 3 2 1
 123             do
 124                 [[ -f ${logfile}.${index} ]] && mv ${logfile}.${index} ${logfile}.$((index+1))
 125             done
 126             [[ -f ${logfile} ]] && mv ${logfile} ${logfile}.1
 127             screen -S flow -p 0 -X logfile ${logfile}
 128             screen -S flow -p 0 -X log on
 129         fi
 130         #launch command to screen
 131         screen -S flow -p 0 -X stuff "java  -Dlogback.configurationFile=${DIRNAME}/flow-logback.xml -jar ./target/floodlight.jar -cf ${DIRNAME}/flow.properties_v0.9\n"
 132         #check if is running
 133         [[ -n $logfile ]] && timeout=120 #2 minute
 134         [[ -z $logfile ]] && timeout=20
 135         while [[ $timeout -gt 0 ]]
 136         do
 137            #check if is running
 138            #echo timeout $timeout
 139            #if !  ps -f -U $USER -u $USER | grep -v grep | grep -q ${om_cmd}
 140            log_lines=0
 141            [[ -n $logfile ]] && log_lines=`head ${logfile} | wc -l`
 142            component_id=`ps -o pid,cmd -U $USER -u $USER | grep -v grep | grep ${om_cmd} | awk '{print $1}'`
 143            if [[ -z $component_id ]]
 144            then #process not started or finished
 145                [[ $log_lines -ge 2 ]] &&  echo -n "ERROR, it has exited." && break
 146                #started because writted serveral lines at log so report error
 147            fi
 148            [[ -n $logfile ]] && grep -q "Listening for switch connections" ${logfile} && sleep 1 && break
 149            sleep 1
 150            timeout=$((timeout -1))
 151         done
 152         if [[ -n $logfile ]] && [[ $timeout == 0 ]]
 153         then
 154            echo -n "timeout!"
 155         else
 156            echo -n "running on 'screen -x flow'."
 157         fi
 158         [[ -n $logfile ]] && echo "  Logging at '${logfile}'" || echo
 159     fi
 160
 161
 162
 163