#!/bin/sh
# Copyright 2007, 2008 Michael Creel <michael.creel@uab.es>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
# set this to the network you'd like to use for the cluster

# make_pelican: this script allows you to make a custom version
# of the PelicanHPC live CD image for creation of high performance
# computing clusters. You need to install the live_helper package to use
# it. See http://pareto.uab.es/mcreel/PelicanHPC for more information.

# Version 1.4
# since 1.3, this adds the ability to select the kernel flavor.
# the default kernel for 32 bits is now 686, which is SMP. Also,
# the references to splash.rle are removed.

# these are the main things you might want to modify, along with the
# list of packages (below)
PELICAN_NETWORK="10.11.12"
MAXNODES="20"
PASSWORD="live"
HOMELOCATION="ram1"
#ARCHITECTURE="amd64"
#KERNEL="amd64"
ARCHITECTURE="i386"
KERNEL="686"
DISTRIBUTION="lenny"

# leave the rest of this alone, except for the package list,
# and perhaps commenting out the block for the nodes after you
# have made it one time
THISDIR=`pwd`
mkdir $ARCHITECTURE
cd $THISDIR/$ARCHITECTURE

# # ############## compute node configuration ##########
# this section should be uncommented the first time
# you make Pelican for an architecture, then commented
# out, to avoid wasting time and bandwidth
LIVECDDIR="nodes/"
rm -R -f $THISDIR/$ARCHITECTURE/$LIVECDDIR
rm -R -f $THISDIR/$ARCHITECTURE/tftpboot/
mkdir $THISDIR/$ARCHITECTURE/$LIVECDDIR
cd $THISDIR/$ARCHITECTURE/$LIVECDDIR
lh_config \
-a $ARCHITECTURE \
-b net \
-d $DISTRIBUTION \
--net-root-server "$PELICAN_NETWORK.1" \
--net-root-path "/live/image" \
--bootappend-live "noautologin noxautologin" \
--syslinux-timeout 10
lh_clean
# syslinux splash screen - don't play with this unless you know what you're doing
# cp $THISDIR/splash.rle config/binary_syslinux/splash.rle
# lh_config --syslinux-splash "config/binary_syslinux/splash.rle"
######## POST BOOT SCRIPT ####################
# thanks to forum user maddanio for this
install -d config/chroot_local-includes/usr/share/initramfs-tools/scripts/live-bottom/
cat <<99START > config/chroot_local-includes/usr/share/initramfs-tools/scripts/live-bottom/99script
#!/bin/sh
cat <<RC_LOCAL > /root/etc/rc.local
#! /bin/sh
pelican_boot_setup
RC_LOCAL
chmod a+x /root/etc/rc.local
99START
chmod +x config/chroot_local-includes/usr/share/initramfs-tools/scripts/live-bottom/99script
lh_build
cd $THISDIR/$ARCHITECTURE
mv $THISDIR/$ARCHITECTURE/$LIVECDDIR/tftpboot $THISDIR/$ARCHITECTURE/
umount proc-live
umount sysfs-live
umount devpts-live
sync
rm -R -f $THISDIR/$ARCHITECTURE/$LIVECDDIR
############## end of compute node configuration ###################

# frontend
LIVECDDIR="frontend/"
# uncomment the next line if you really want to start from scratch
rm -R -f $LIVECDDIR
mkdir $THISDIR/$ARCHITECTURE/$LIVECDDIR
cd $THISDIR/$ARCHITECTURE/$LIVECDDIR
lh_config \
--apt apt --apt-recommends disabled \
-a $ARCHITECTURE \
-d $DISTRIBUTION \
-k $KERNEL \
--hostname pelican \
--iso-volume PelicanHPC \
--syslinux-timeout 20 \
--bootappend-live "ramdisk=200000"
lh_clean

# syslinux splash screen - don't play with this unless you know what you're doing
# cp $THISDIR/splash.rle config/binary_syslinux/splash.rle
# lh_config --syslinux-splash "config/binary_syslinux/splash.rle"

############ packages to add ####################
cat <<PACKAGELIST > config/chroot_local-packageslists/addlist
# basic network stuff
ssh dhcp3-server nfs-kernel-server tftpd-hpa
# configuration and tools
wget bzip2 dialog less net-tools rsync
fping screen make
# MPI
lam-runtime lam4-dev openmpi-bin openmpi-dev
# Octave
octave2.9 octave2.9-headers gnuplot
# Python
python-scipy
python-matplotlib
python-numpy
ipython
# other scientific
gfortran
# X stuff
xorg
xfce4
konqueror
ksysguard
ksysguardd
kate
kpdf
konsole
kcontrol
kdenetwork
kdeadmin
PACKAGELIST
################## END OF PACKAGELIST ################


########## make directories on chroot #########
install -d config/chroot_local-includes/usr/bin
install -d config/chroot_local-includes/usr/share/pelican/tftpboot
install -d config/chroot_local-includes/etc/skel

########## copy stuff to be added to chroot ######
rsync -avz $THISDIR/$ARCHITECTURE/tftpboot/* config/chroot_local-includes/usr/share/pelican/tftpboot
rsync -avz $THISDIR/pelicanhome/* config/chroot_local-includes/etc/skel
rsync -avz $THISDIR/packages/*.deb config/chroot_local-packages

######## WRITE THE PELICAN SETUP SCRIPTS #############
cat <<01SETUP > config/chroot_local-includes/usr/bin/pelican_boot_setup
#!/bin/bash

# Clean input/output
exec >/dev/console </dev/console 2>&1

# Reset fb color mode - borrowed from Knoppix
RESET="]R"
# ANSI COLORS
# Erase to end of line
CRE="
"
# Clear and reset Screen
CLEAR="c"
# Normal color
NORMAL=""
# RED: Failure or error message
RED=""
# GREEN: Success message
GREEN=""
# YELLOW: Descriptions
YELLOW=""
# BLUE: System mesages
BLUE=""
# MAGENTA: Found devices or drivers
MAGENTA=""
# CYAN: Questions
CYAN=""
# BOLD WHITE: Hint
WHITE=""

# Clear screen with colormode reset
# echo "\$CLEAR\$RESET"
# echo "\$CLEAR"
# Just go to the top of the screen
# echo -n ""
echo ""

bailout(){
  chown -R user.user /home/user
  echo -n ""
  echo "\${GREEN}Welcome to \${CYAN}PelicanHPC\${GREEN}. The frontend node is ready to use."
  echo "type \${YELLOW}\"startx\"\${GREEN} to use XFCE"
  echo "type \${YELLOW}\"pelican_setup\"\${GREEN} to set up up a cluster\${NORMAL}"

exit \$1
}
bailout2(){
  echo "\${GREEN} * All done setting up this \${CYAN}PelicanHPC\${GREEN} compute node\${NORMAL}"
  echo ""
  sleep 4
  echo -n ""
  echo "\${GREEN}This is a \${CYAN}PelicanHPC \${GREEN}compute node. It is part of a cluster of computers that is doing some REALLY important stuff."
  echo ""
  echo "Please don't try to use it, and \${RED}DON'T TURN IT OFF!"
  echo ""
  echo "\${GREEN}THANKS!\${BLUE}"
exit \$1
}

DIALOG="dialog"
TITLE="Pelican Setup"

echo "\${GREEN}Welcome to \${CYAN}PelicanHPC!\${NORMAL}"
echo ""
sleep 4

# things for both frontend and nodes
echo "" > /etc/motd
echo "StrictHostKeyChecking no" >> /etc/ssh/ssh_config
echo "user:$PASSWORD" | chpasswd

# test for master or compute node: $PELICAN_NETWORK will only be there at boot if this is a compute node
computenode=\`mount | grep -c $PELICAN_NETWORK\`

if [ \$computenode = 0 ]; then
  # master node
  echo "\${GREEN}This is the \${CYAN}PelicanHPC\${GREEN} \${YELLOW}frontend \${GREEN}node - doing initial post-boot setup\${NORMAL}"
  sleep 4
  dpkg-reconfigure --priority=high xserver-xorg
  rm -R -f /home
  mkdir /home
  mkfs.ext2 -q -m 0 /dev/ram1
  mount /dev/$HOMELOCATION /home
  mkdir /home/user
  MESSAGE="Copy the example files to /home/user? Careful with this if you are using permanent storage for /home and you have already modified the example files. If this is the first time you use Pelican, you should choose yes."
  \$DIALOG --defaultno --title "\$TITLE" --yesno "\$MESSAGE" 10 50 || bailout
  rsync -avz /etc/skel/* /home/user
  bailout
else
  echo "\${GREEN}This is a \${CYAN}PelicanHPC\${GREEN} \${YELLOW}compute \${GREEN}node - doing the initial post-boot setup${NORMAL}"
  sleep 4
  echo "\${GREEN} * mounting NFS-shared directories\${NORMAL}"
  rm -R -f /home
  mkdir /home
  mount $PELICAN_NETWORK.1:/home /home
  echo "\${GREEN} * reporting to master node that this compute node is ready\${NORMAL}"
  myip=(\`/sbin/ifconfig | grep -i "Ethernet" -A 1|grep "inet addr"|cut -d  " " -f 12|cut -d ":" -f 2\`)
  echo "\$myip is up" > /home/user/tmp/\$myip
bailout2
fi
01SETUP

cat <<02USERSETUP > config/chroot_local-includes/usr/bin/pelican_setup
  pelican_setup_user
  pelican_setup_netdevice
  pelican_terminalserver
  pelican_restart_hpc
02USERSETUP

cat <<03USER > config/chroot_local-includes/usr/bin/pelican_setup_user
#!/bin/bash
bailout(){
exit \$1
}
cd /home/user
HOME="/home/user"
PKTMP="\$HOME/tmp"
echo "Creating temporary directory"
rm -R -f \$PKTMP
mkdir \$PKTMP
chown user.user \$PKTMP
chmod 777 \$PKTMP
# regenerate keys
echo "Generating new RSA keys"
rm -f \$HOME/.ssh/id_rsa*
ssh-keygen  -q -t rsa -N "" -f "\$HOME/.ssh/id_rsa"
cp \$HOME/.ssh/id_rsa.pub \$HOME/.ssh/authorized_keys
chmod 600 \$HOME/.ssh/authorized_keys
# make list of hosts to fping
echo "$PELICAN_NETWORK.2" > \$HOME/fpinghosts
i=2
while [ \$i -lt $MAXNODES ]
do
  i=\`expr \$i + 1\`
  echo $PELICAN_NETWORK.\$i >> \$HOME/fpinghosts
done
bailout
03USER

cat <<04NETDEVICE > config/chroot_local-includes/usr/bin/pelican_setup_netdevice
#!/bin/bash
# modification of netcardconfig from Knoppix.
PATH="/bin:/sbin:/usr/bin:/usr/sbin"
export PATH
DIALOG="dialog"
[ "\`id -u\`" != "0" ] && exec sudo "\$0" "\$@"
TMP="/tmp/netconfig.tmp\$\$"
bailout(){
rm -f "\$TMP"
exit \$1
}
TITLE="Pelican Setup"
MESSAGE0="No supported network cards found."
MESSAGE1="Please select the network device that connects to the cluster."
NETDEVICES="\$(cat /proc/net/dev | awk -F: '/eth.:|br.:|tr.:|wlan.:/{print \$1}')"
if [ -z "\$NETDEVICES" ]; then
\$DIALOG --title "\$TITLE" --msgbox "\$MESSAGE0"
bailout
fi
count="\$(echo "\$NETDEVICES" | wc -w)"
if [ "\$count" -gt 1 ]; then
DEVICELIST=""
for DEVICE in \$NETDEVICES; do DEVICELIST="\$DEVICELIST \${DEVICE} network_device_\${DEVICE}"; done
rm -f "\$TMP"
echo "Hints about your net devices"
dmesg|grep eth
rm -f "\$TMP"
\$DIALOG --menu "\$MESSAGE1" 18 45 12 \$DEVICELIST 2>"\$TMP" || bailout
read DV <"\$TMP" ; rm -f "\$TMP"
else
# Remove additional spaces
DV="\$(echo \$NETDEVICES)"
fi
IP="$PELICAN_NETWORK.1"
NM="255.255.255.0 "
BC="$PELICAN_NETWORK.255"
ifdown \$DV
sleep 4
CMD="ifconfig \$DV \$IP netmask \$NM broadcast \$BC up"
\$CMD
bailout
04NETDEVICE

cat <<05TERMINALSERVER > config/chroot_local-includes/usr/bin/pelican_terminalserver
#!/bin/sh
PATH="/bin:/sbin:/usr/bin:/usr/sbin"
export PATH
[ "\`id -u\`" != "0" ] && exec sudo "\$0" "\$@"
bailout(){
exit \$1
}
cp -a /usr/share/pelican/tftpboot/* /var/lib/tftpboot/
# configure dhcp
cat <<DHCP > /etc/dhcp3/dhcpd.conf
# global settings
allow booting;
allow bootp;
default-lease-time 600;
max-lease-time 7200;
subnet $PELICAN_NETWORK.0 netmask 255.255.255.0 {
  next-server $PELICAN_NETWORK.1;
  filename "pxelinux.0";
  option subnet-mask 255.255.255.0;
  range $PELICAN_NETWORK.2 $PELICAN_NETWORK.$MAXNODES;
}
DHCP
# configure tftpd-hpa
cat <<TFTP > /etc/default/tftpd-hpa
#Defaults for tftpd-hpa
RUN_DAEMON="yes"
OPTIONS="-l -s /var/lib/tftpboot"
TFTP
# generate /etc/exports
cat <<EXPORTS > /etc/exports
/live/image *(ro,async,no_subtree_check,no_root_squash,fsid=12345)
/home $PELICAN_NETWORK.0/255.255.255.0(rw,root_squash,async,no_subtree_check)
EXPORTS
# start services
sync
/etc/init.d/tftpd-hpa start
/etc/init.d/dhcp3-server start
/etc/init.d/nfs-kernel-server start
bailout
05TERMINALSERVER

cat <<06HPC > config/chroot_local-includes/usr/bin/pelican_restart_hpc
#!/bin/sh
PKTMP="/home/user/tmp"
PATH="/bin:/sbin:/usr/bin:/usr/sbin"
export PATH
DIALOG="dialog"
bailout(){
exit 0
}
# check which nodes are up
checknodes(){
rm \$PKTMP/bhosts
sudo fping -a -q -r0 -f /home/user/fpinghosts > \$PKTMP/bhosts
}
retry(){
checknodes
NNODES="\$(grep -c "" \$PKTMP/bhosts)"
MESSAGENODES="\nGo turn on your compute nodes now. \n\nAt the moment \$NNODES compute nodes (not counting this frontend node) are available. \n\nClick no to rescan the available nodes. Click yes when the desired number of nodes are available. You might want to wait a bit if some nodes are still finishing booting up."
\$DIALOG --title "\$TITLE" --yesno "\$MESSAGENODES" 20 50 || retry
}
trap bailout 1 2 3 15
TITLE="Restart Pelican HPC"
MESSAGE="\nWe now set up the cluster by finding which nodes are available. If you are doing initial setup, click on yes. If you are resizing a running cluster, be aware that continuing will interrupt any running MPI jobs. Click no abort resizing."
\$DIALOG --title "\$TITLE" --yesno "\$MESSAGE" 15 50 || bailout
retry
# master must be last in the list
echo "$PELICAN_NETWORK.1" | cat >> \$PKTMP/bhosts
# lamboot 2X to generate known_hosts (and an error message) the first time
lamwipe
lamboot \$PKTMP/bhosts
lamwipe
lamboot \$PKTMP/bhosts
lamnodes
sleep 5
# display success message
NNODES="\$(grep -c "" \$PKTMP/bhosts)"
# final report
SUCCESS="\nYour cluster of \$NNODES nodes is (probably) lambooted. If there was a problem, just re-run the script.\nThe nodes in the cluster are listed in the file ~/tmp/bhosts. If you add or remove compute nodes, re-run this script (pelican_restart_hpc) whenever you like."
\$DIALOG --title "\$TITLE" --msgbox "\$SUCCESS" 15 50
bailout
06HPC
######## END OF PELICAN SETUP SCRIPTS #############


######## POST BOOT SCRIPT ####################
# thanks to forum user maddanio for this
install -d config/chroot_local-includes/usr/share/initramfs-tools/scripts/live-bottom/
cat <<99START > config/chroot_local-includes/usr/share/initramfs-tools/scripts/live-bottom/99script
#!/bin/sh
cat <<RC_LOCAL > /root/etc/rc.local
#! /bin/sh
pelican_boot_setup
RC_LOCAL
chmod a+x /root/etc/rc.local
99START
chmod +x config/chroot_local-includes/usr/share/initramfs-tools/scripts/live-bottom/99script

# make the scripts in /usr/bin executable
chmod +x config/chroot_local-includes/usr/bin/*

# build the ISO image
export MKSQUASHFS_OPTIONS="-b 64K -no-sparse"
lh_build

umount proc-live
umount sysfs-live
umount devpts-live
sync