drbl 2.6.15-1 / usr / sbin / drbl-aoe-serv

#!/bin/bash
# Author: Steven Shiau <steven _at_ nchc org tw>
# License: GPL
# Description: Program to start service for AoE images on DRBL server.

DRBL_SCRIPT_PATH="${DRBL_SCRIPT_PATH:-/usr/share/drbl}"

. $DRBL_SCRIPT_PATH/sbin/drbl-conf-functions
[ -e /etc/drbl/drbl-ocs.conf ] && . /etc/drbl/drbl-ocs.conf
[ -e $DRBL_SCRIPT_PATH/sbin/ocs-functions ] && . $DRBL_SCRIPT_PATH/sbin/ocs-functions

#
prog="$(basename $0)"
#
USAGE() {
   echo "Usage: $prog [OPTION] {start|stop|restart|status}"
   echo "-d, --img-dir DIR  Scan the AoE image directory DIR when starting"
   echo "Ex:" 
   echo "To start AoE service for images in default image dir $sanboot_img_dump_dir:"
   echo "  $prog start"
   echo "To start AoE service for images in /work/img/:"
   echo "  $prog -d /work/img/ start"
   echo "To start AoE service for images in /work/img1/ and /work/img2/:"
   echo "  $prog -d \"/work/img1/ /work/img2/\" start"
   echo "To stop AoE service:"
   echo "  $prog stop"
}
#
start() {
  if ! type vblade &>/dev/null; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
    echo "vblade not found!"
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo "$msg_program_stop!!"
  fi
  sys_eth_ports="$(LC_ALL=C get-all-nic-ip --drbl-client-eth-port)"
  IP_MAC_TMP="$(mktemp /tmp/ip_mac_tmp.XXXXXX)"
  trap "[ -f "$IP_MAC_TMP" ] && rm -f $IP_MAC_TMP" HUP INT QUIT TERM EXIT
  parse_dhcpd_conf $IP_MAC_TMP
  # The output of parse_dhcpd_confi is like:
  # hostname  IP ADD       MAC ADD
  # debian101 192.168.61.1 00:02:e3:53:34:30
  # debian102 192.168.61.2 00:02:e3:54:73:39

  # image name is like: sanboot.aoe-0-0-for-00-50-56-02-01-02
  echo "The AoE image dir: $aoe_img_dir"
  for img_dir in $aoe_img_dir; do
    for i in $img_dir/*.aoe-*; do
     if [ ! -e "$i" ]; then
        echo "$i is not a normal file. Skip this."
        continue
     fi
     # If the filename is not the format, skip it
     if [ -z "$(basename $i | grep -E "for-([[:alnum:]]+-){5}[[:alnum:]]+$")" ]; then
        echo "$i is not in DRBL AoE image file name format. Skip this."
        continue
     fi
     [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
     echo "AoE image found: $i"
     [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
     shelf_no="$(echo $i | grep -Eo "aoe-[[:digit:]]+-[[:digit:]]+-for-.*" | awk -F'-' '{print $2}')"
     slot_no="$(echo $i | grep -Eo "aoe-[[:digit:]]+-[[:digit:]]+-for-.*" | awk -F'-' '{print $3}')"
     mac_address_dash="$(echo $i | grep -Eo "aoe-[[:digit:]]+-[[:digit:]]+-for-.*" | sed -e 's/^aoe-.*-for-//g')"
     mac_address_normal="$(echo $mac_address_dash | sed -e 's/-/:/g')"
     mac_name_cfg_for_pxe="01-${mac_address_dash}"
     echo "Checking if vblade service for aoe:e${shelf_no}.${slot_no} is running..."
     ps_status="$(ps -ef | grep -Ew "vblade[[:space:]]+${shelf_no}[[:space:]]+${slot_no}" | grep -v "grep")"
     if [ -n "$ps_status" ]; then
       echo "vblade service for aoe.e${shelf_no}.${slot_no} is running. Skip this one"
       continue
     fi
     # Find the right eth port instead of running on all. This can be done by parsing the dhcpd.conf if MAC addresses are used in dhcpd.conf.
     client_ip="$(grep -iEw "$mac_address_normal" $IP_MAC_TMP | awk -F' ' '{print $2}')"
     if [ -n "$client_ip" ]; then 
        # We can find the IP address from dhcpd.conf
        # The output of "ip route get 192.168.205.10" is like:
        # 192.168.205.10 dev eth2  src 192.168.205.254
        eth_ports_list="$(ip route get $client_ip | grep -iEo 'dev[[:space:]]+.*src' | awk -F' ' '{print $2}')"
        echo "This server uses ethernet port $eth_ports_list to connect client $mac_address_normal"
     else
        # "range" is used in dhcpd.conf, we have to run vblade on all the available ether port except uplink port.
        eth_ports_list="$sys_eth_ports"
        echo "No idea which ethernet port on the server connects to client $mac_address_normal. Running virtual blade on all available ethernet ports except uplink port..."
     fi
    
     if [ -z "$eth_ports_list" ]; then
       [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
       echo "No ethernet port on the server connecting to client $mac_address_normal was found!"
       [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
       echo "$msg_program_stop!!"
     fi
     echo -n "Starting virtual blade for ${i##*/} on "
     for j in $eth_ports_list; do
       echo -n "$j, "
       vbladed ${shelf_no} ${slot_no} $j $i
       rc=$?
       if [ "$rc" -gt 0 ]; then
         [ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
         echo "Error when starting vbladed by: vbladed ${shelf_no} ${slot_no} $j $i"
         [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
         continue
       fi
     done
     echo
    
     # Set pxelinux config file
     cp -f $PXE_CONF_DEF $PXELINUX_DIR/$mac_name_cfg_for_pxe
     hide_reveal_pxe_img "AoE-client" reveal $PXELINUX_DIR/$mac_name_cfg_for_pxe
     set-default-pxe-img -i "AoE-client" -c $PXELINUX_DIR/$mac_name_cfg_for_pxe
     # Change the line: append aoe:e0.0
     drbl-tune-pxecfg-block AoE-client "^([[:space:]]*)append aoe:.*" "\$1append aoe:e${shelf_no}.${slot_no}" $PXELINUX_DIR/$mac_name_cfg_for_pxe
    done
  done
  [ -e "$IP_MAC_TMP" ] && rm -f $IP_MAC_TMP

  # Use gpxelinux.0 instead of pxelinux.0 in dhcpd.conf
  if ! grep -iEq '^[[:space:]]*filename[[:space:]]*=[[:space:]]*[\"]*gpxelinux.0[\"]*' $DHCPDCONF_DIR/dhcpd.conf; then
    echo "Use gpxelinux.0 instead of pxelinux.0 in dhcpd.conf..."
    perl -pi -e 's|(^filename[[:space:]]*=[[:space:]]*"*pxelinux.0"*.*)|#$1|g' $DHCPDCONF_DIR/dhcpd.conf
    perl -pi -e 's|(^[#]*[[:space:]]*filename[[:space:]]*=[[:space:]]*"*gpxelinux.0"*.*)|filename = "gpxelinux.0";|g' $DHCPDCONF_DIR/dhcpd.conf
    # Restart dhcpd service, since different distributions have different names
    for serv_st in dhcpd isc-dhcp-server dhcp3-server; do
      [ -e "/etc/init.d/$serv_st" ] && /etc/init.d/$serv_st restart
    done
  fi
} # end of start

stop() {
  local pxe_mac_files
  echo -n "Stopping vblade process... "
  pkill -9 vblade
  echo "done!"
  #
  for i in $PXELINUX_DIR/01-*; do
    [ -e "$i" ] && pxe_mac_files="$pxe_mac_files $(basename $i)" 
  done
  # Remove spaces in the line head
  pxe_mac_files="$(echo $pxe_mac_files | sed -e "s/^[[:space:]]*//g")"
  if [ -n "$pxe_mac_files" ]; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo "The pxelinux config files used for AoE clients in dir $PXELINUX_DIR/ are: ${pxe_mac_files// /, }"
    echo "Do you want to remove them now ?"
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo -n "[Y/n] "
    read ans_rm_pxelinux_cfg
    case "$ans_rm_pxelinux_cfg" in 
       n|N|[nN][oO]) true ;;
       *) 
         for i in $pxe_mac_files; do
           rm -fv $PXELINUX_DIR/$i
         done
         ;;
    esac
  fi
  # Ask if want to use gpxelinux.0 instead of pxelinux.0 in dhcpd.conf
  if grep -iEq '^[[:space:]]*filename[[:space:]]*=[[:space:]]*[\"]*gpxelinux.0[\"]*' $DHCPDCONF_DIR/dhcpd.conf; then
    [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
    echo "Since AoE booting service was stopped. Do you want to use pxelinux.0 instead of gpxelinux.0 in your dhcpd.conf ?"
    [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
    echo -n "[Y/n] "
    read ans_use_pxelinux_0
    case "$ans_use_pxelinux_0" in 
      n|N|[nN][oO]) true ;;
      *) 
        echo "Use pxelinux.0 instead of gpxelinux.0 in dhcpd.conf..."
        perl -pi -e 's|(^[#]*[[:space:]]*filename[[:space:]]*=[[:space:]]*"*pxelinux.0"*.*)|filename = "pxelinux.0";|g' $DHCPDCONF_DIR/dhcpd.conf
        perl -pi -e 's|(^filename[[:space:]]*=[[:space:]]*"*gpxelinux.0"*.*)|#$1|g' $DHCPDCONF_DIR/dhcpd.conf
        # Restart dhcpd service, since different distributions have different names
        for serv_st in dhcpd isc-dhcp-server dhcp3-server; do
          [ -e "/etc/init.d/$serv_st" ] && /etc/init.d/$serv_st restart
        done
        ;;
    esac
  fi
} # end of stop

#
restart() {
  stop
  echo -n "Wait for 2 secs..."
  sleep 2
  echo
  start
}

status() {
  ps -efw | grep -iE "vblade [[:digit:]]+ [[:digit:]]+"
}

##############
#### main ####
##############
#
while [ $# -gt 0 ]; do
  case "$1" in
    -d|--img-dir) 
            shift
            if [ -z "$(echo $1 |grep ^-.)" ]; then
              # skip the -xx option, in case 
	      aoe_img_dir="$1"
              shift
            fi
            ;;
    -*)     echo "${0}: ${1}: invalid option" >&2
            USAGE >& 2
            exit 2 ;;
    *)      break ;;
  esac
done
#
[ -z "$aoe_img_dir" ] && aoe_img_dir="$sanboot_img_dump_dir"

#
ask_and_load_lang_set

#
case $1 in
  start)   start;;
  stop)    stop;;
  restart) restart;;
  status)  status;;
  *)       echo "Usage: $0 {start|stop|restart|status}"
	   exit 1 
esac