#!/bin/sh
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html


##########################################################################################
# This script is used for RMC node configuration
# usage:
#  To add node to the cluster:
#    NODE=nodename NODEID=fbb5ec1f64dd299c \
#    MONMASTER=msname_or_ip MS_NODEID=fbb5ec1f64dd299c \
#    configrmcnode 1    
#  To remove node to the cluster 
#    NODE=nodename configrmcnode -1
########################################################################################## 
if [ -n "$1" ]; then 
  ADD=$1
else
  ADD=1
fi

if [ -z "$NODE" ]; then
   NODE=`hostname`
fi

logger xCAT "configrmcnode: ADD=$ADD, NODE=$NODE, NODEID=$NODEID MONMASTER=$MONMASTER,MS_NODEID=$MS_NODEID"

#check if rsct is installed and running
if [ ! -e /usr/bin/lsrsrc ]; then  
  logger xCAT "RMC setup on node $NODE: RSCT is not is not installed."
  exit 1;
else
  PID=`/bin/ps -ef | /bin/grep rmcd | /bin/grep -v grep | /bin/awk '{print $2}'`
  if [ -z "$PID" ]; then
    result=`/usr/sbin/rsct/bin/rmcctrl -s 2>&1`;
    if [ $? -gt 0 ]; then
      logger xCAT "RMC deamon cannot be started on node $NODE:$result"
      exit 1;
    fi
  fi
fi

#wait for RMC daemon to fully functional
RETRY_LIMIT=10          # number of 2 second retry intervals (20 second total)
let i=$RETRY_LIMIT
while :
do
  lsrsrc > /dev/null 2>&1
  rc=$?
  if [[ $rc -eq 0 ]]
  then
    break
  fi

  i=$((i - 1))
  if (( i > 0 ))
  then
      sleep 2
  else
      break
  fi
done
if [[ $rc -ne 0 ]]
then
  logger xCAT "RMC subsystem has not started"
  exit 1
fi



#check if the resource is defined
result=`/usr/bin/lsrsrc-api -s IBM.MCP::"NodeID=0x$MS_NODEID"::MNName 2>&1`
if [ $? -gt 0 ]; then
#  echo $result
  p="2612-023" #resource not found
  result1=`awk -v a="$result" -v b="$p" 'BEGIN{print index(a,b)}'`
  if [ $result1 -gt 0 ]; then
    if [ $ADD -eq -1 ]; then
      exit 0; #resource already removed, do nothing
    fi
  else
    echo "$result"
    logger xCAT "$result"
    exit 1
  fi
else
  if [ $ADD -eq 1 ]; then
    exit 0; #resource already defined, do nothing
  fi
fi

#ask RMC take the new nodeid
if [[ $NODEID != "" ]]; then
  oldid=`/usr/sbin/rsct/bin/lsnodeid`
  oldidU=`echo "$oldid" | awk '{ print toupper($1) }'`
  newidU=`echo "$NODEID" | awk '{ print toupper($1) }'`
  if [ $oldidU != $newidU ]; then
    if [ -e /usr/sbin/rsct/install/bin/recfgctnid ]; then
      result=`/usr/sbin/rsct/install/bin/recfgctnid $NODEID 2>&1`
      if [ $? -ne 0 ]; then
        echo "Reset nodeid: $result" 
        logger xCAT "Reset nodeid: $result" 
      fi
    else 
      #stop all rmc daemons
      /usr/sbin/rsct/bin/rmcctrl -z

      #get new nodeid into id files
      if [ -e /var/ct/cfg/ct_node_id ]; then
        sed s/^[^\#].*$/$NODEID/ /var/ct/cfg/ct_node_id > /tmp/id.tmp
      else
        if [ -e /etc/ct_node_id ]; then
          sed s/^[^\#].*$/$NODEID/ /etc/ct_node_id >  /tmp/id.tmp
        else 
          echo $NODEID > /tmp/id.tmp
        fi
      fi
      cp /tmp/id.tmp /var/ct/cfg/ct_node_id
      cp /tmp/id.tmp /etc/ct_node_id
      rm /tmp/id.tmp

      #reconfig RMC
      result=`/usr/sbin/rsct/install/bin/recfgct -s 2>&1`
      if [ $? -ne 0 ]; then
        echo "RMC setup on node $NODE: Cannot reconfig RSCT with new node id" 
        logger xCAT "RMC setup on node $NODE: Cannot reconfig RSCT with new node id" 
      fi
    fi
  fi
fi
  
PID=`/bin/ps -ef | /bin/grep rmcd | /bin/grep -v grep | /bin/awk '{print $2}'`
if [ -z "$PID" ]; then
  #restart rmc daemon
  result=`/usr/sbin/rsct/bin/rmcctrl -s 2>&1`;
  if [ $? -gt 0 ]; then
    echo "RMC deamon cannot be started on node $NODE:$result"
    logger xCAT "RMC deamon cannot be started on node $NODE:$result"
    exit 1;
  fi
fi


if [ $ADD -eq 1 ]; then
  #enable remote client connection
  /usr/sbin/rsct/bin/rmcctrl -p; /usr/bin/refrsrc IBM.MCP

  #get IP address of MS
  ms_ip=$MONMASTER
  result=`ping -c1 $MONMASTER 2>&1`
  if [ $? -eq 0 ]; then
    index1=`expr index "$result" "\("`
    index2=`expr index "$result" "\)"`
    #ms_ip=${result:$index1+1:$index2-$index1-2}
    pos=`expr $index1 + 1`
    length=`expr $index2 - $index1`
    length=`expr $length - 1`
    ms_ip=`expr substr "$result" $pos $length`
  else
    echo "RMC setup on node $NODE:$result" 
    logger xCAT "RMC setup on node $NODE:$result"
  fi

  #define resource in IBM.MCP class on node       
  result1=`/usr/bin/mkrsrc-api IBM.MCP::MNName::"$NODE"::KeyToken::"$MONMASTER"::IPAddresses::"{\"$ms_ip\"}"::NodeID::0x$MS_NODEID 2>&1`
  if [ $? -gt 0 ]; then
    echo "Define resource in IBM.MCP class on node $NODE. result=$result1" 
    logger xCAT  "Define resource in IBM.MCP class on node $NODE. result=$result1" 
    exit 1
  fi

  #TODO: create predefined sensors
else
  #remove resource in IBM.MCP class on the node
  result2=`/usr/bin/rmrsrc-api -s IBM.MCP::"NodeID=0x$MS_NODEID" 2>&1`
  if [ $? -gt 0 ]; then
    echo "Remove resource in IBM.MCP class on noderesult=$result2"
    logger xCAT "Remove resource in IBM.MCP class on noderesult=$result2"
    exit 1
  fi
fi
exit 0;