#! /bin/sh
#
# nbinstall - no brain install - install FreeBSD 8.x using zfs with little
#             human interaction needed. -bw- 2011-02-23
#
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/root/bin

#
# set the name of the program
#
MYNAME=`basename $0`

#
# our domain name - should come from config file at some point -bw-
#
DOMAIN="isprime.com"

#
# how many cpus do we have so we can run parallel make later
#
CPUNUM=`sysctl kern.smp.cpus | cut -f 2 -d\ `

#
# the on CD core os image is missing man pages.  Grab them from
# a local web server
#
MANURL="http://sabre.tekhq.com/fbsd82/manpages.tgz"
#
# url to grab tarball of packages we want on a base install
PKGURL="http://sabre.tekhq.com/fbsd82/i-packages.tar"
PKGTAR="i-packages.tar"
#
# make sure everyone can see it
#
export PATH MYNAME DOMAIN


#
# find what disks we have attached and set up arguments to zfsinstall for disks
#
DISKARG=`sysctl kern.disks | cut -d: -f2 | sed -e 's/ / -d /g'`

#
# how many disks do we have - this is how we decide between mirror and raidz
#

DCOUNT=`echo ${DISKARG} | wc -w `
#
# strip out the count of -d arguments so we know exactly how many disks we have
#
DCOUNT=`expr $DCOUNT / 2`

if [ $DCOUNT -lt 3 ]
then 
    RAID="mirror"
else
    RAID="raidz"
fi

#
# check for mounted cdrom - mount if needed
#
mount | grep /cdrom 2>&1 >/dev/null

if [ $? -ne 0 ]
then
     mount -t cd9660 /dev/acd0 /cdrom

     if [ $? -ne 0 ]
     then

          echo
          echo "$MYNAME: can not mount install media - nothing done!"
          echo
          exit 1
     fi
fi

#
# get our hostname
#

while [ x$RAWHOST = x ]
do


     echo
     echo -n "Please enter the short hostname (no domain part): "
     read RAWHOST
done

#
# make sure to strip off domain if the operator included it
# we need to do this because we will use this as our zfs pool name
#

COOKEDHOST=`echo $RAWHOST | cut -f1 -d.`


while [ x$DOIT != xyes ]
do

    echo
    echo "I am about to create a new FreeBSD 8.2 system with"
    echo "the hostname ${COOKEDHOST}.${DOMAIN} and ZFS ${RAID} on pool ${COOKEDHOST}."
    echo
    echo -n "Shall I continue? (yes/no) "
    read DOIT
    if [ x$DOIT = xno ]
    then
        echo
        echo "$MYNAME: Install aborted by user.  Nothing done!"
        echo
        exit 1
     fi
done    

hostname ${COOKEDHOST}.${DOMAIN}

POOL=${COOKEDHOST}

export POOL

zfsinstall ${DISKARG} -r ${RAID} -p ${POOL} -t /cdrom/8.2-RELEASE-amd64.tar.xz

#
# we do not want the messages from zfsinstall showing....need to
# modify zfsinstall at some point
#
clear
echo "Setting up additional ZetaByte Filesystems."
echo "Please stand by."
#
# now create other zfs file systems we need
#
# we might have to put some of this into zfsinstall.....need to check
# -bw- 2011-04-27
#
zfs create -p ${POOL}/other/home
zfs set mountpoint=/home  ${POOL}/other/home
zfs create -p ${POOL}/other/ports
zfs set mountpoint=/usr/ports  ${POOL}/other/ports
zfs create -p ${POOL}/other/local
zfs set mountpoint=/usr/local  ${POOL}/other/local
zfs create -p ${POOL}/other/local/isp
zfs set mountpoint=/usr/local/isp  ${POOL}/other/local/isp
zfs create -p ${POOL}/root/var/tmp
#zfs create -p ${POOL}/root/var/db
zfs create -p ${POOL}/root/var/mail
#zfs create -p ${POOL}/root/var/spool
zfs create -p ${POOL}/other/www
zfs set mountpoint=/www  ${POOL}/other/www
#
# make some things noexec and nosuid
#

for DIR in  /var/mail
do
     zfs set  exec=off  ${POOL}/root${DIR}
     zfs set  setuid=off  ${POOL}/root${DIR}
done

for DIR in /tmp /var /var/tmp
do
     zfs set  setuid=off  ${POOL}/root${DIR}
done

chroot /mnt sysinstall tcpMenuSelect

echo
echo "Setting up /etc/rc.conf"
echo
#
# now put other important stuff into /etc/rc.conf
#
cat << EOF >> /mnt/etc/rc.conf

accounting_enable="YES"
sendmail_enable="NO"
ntpdate_flags="tick.isprime.com"
ntpdate_enable="YES"
ntpd_enable="YES"
sshd_enable="YES"
tcp_extensions="YES"
collectd_enable="YES"

EOF

echo
echo "Installing man pages"
echo

cd /mnt/tmp

fetch -o -  $MANURL |  tar xpvf -


#
# now install the manpages we just grabbed
#
chroot /mnt /bin/sh -c "cd /tmp/manpages ; /bin/sh -x install.sh"
#
# now get the most current ports tree
#
chroot /mnt portsnap fetch
chroot /mnt portsnap extract
#
#
# grab prebuilt packages from web server and install them.
#

cd /mnt/tmp

fetch $PKGURL
cd /mnt/usr/ports
tar xpvf /mnt/tmp/$PKGTAR


for PKG in `ls /mnt/usr/ports/packages/All`
do
     chroot /mnt /bin/sh -c "cd  /usr/ports/packages/All ; pkg_add -v $PKG"
done

echo
echo "Setting up sudoers....."
echo
cp /mnt/usr/local/etc/sudoers /mnt/usr/local/etc/sudoers.DIST
sed -e 's/^# %wheel ALL=(ALL) ALL/%wheel ALL=(ALL) ALL/g' /mnt/usr/local/etc/sudoers.DIST > /mnt/usr/local/etc/sudoers

#
# set up collectd config file
#
if [ -f /mnt/usr/local/etc/collectd.conf ]
then
     mv /mnt/usr/local/etc/collectd.conf /mnt/usr/local/etc/collectd.conf-dist
fi

cat << EOF > /mnt/usr/local/etc/collectd.conf

BaseDir     "/var/db/collectd"
PIDFile     "/var/run/collectd.pid"

FQDNLookup   true
ReadThreads  8
LoadPlugin apache
LoadPlugin cpu
LoadPlugin df
LoadPlugin disk
LoadPlugin interface
LoadPlugin load
LoadPlugin memory
LoadPlugin network

<Plugin apache>
        URL "http://localhost/isp-status?auto"
</Plugin>
<Plugin network>
        <Server "68.169.99.70" "25826">
                SecurityLevel Sign
                Username "isprime"
                Password "TredLokhi"
        </Server>
        MaxPacketSize 1024
        ReportStats true
        CacheFlush 1800
</Plugin>


EOF

echo "Setting up /etc/sysctl.conf"

cat << EOF >> /mnt/etc/sysctl.conf
#
# big webserver tweeks below
#
net.inet.icmp.icmplim=2000
net.inet.tcp.syncookies=0
net.inet.tcp.keepinit=10000

kern.ipc.shmmax=409600000
kern.ipc.maxsockbuf=1048576
kern.ipc.somaxconn=65535
net.inet.tcp.sendspace=65535
net.inet.tcp.recvspace=65535
net.inet.udp.recvspace=65535
net.inet.tcp.mssdflt=1460
net.inet.tcp.mssdflt=1460
net.inet.tcp.slowstart_flightsize=4
net.inet.tcp.inflight.enable=0
vm.pmap.shpgperproc=800
net.inet.tcp.sendbuf_max=16777216
net.inet.tcp.recvbuf_max=16777216
kern.ipc.maxsockbuf=4000000
#
# not in fbsd 8.2 generic
#
kern.polling.burst_max=1000
kern.polling.idle_poll=0
kern.polling.each_burst=50
#
# end not in fbsd 8.2 generic
#
net.inet.tcp.sendbuf_inc=32768
net.inet.tcp.recvbuf_inc=524288
net.inet.ip.portrange.first=2048
#
# this helps nfs clients
#
vfs.nfs.iodmax=64


EOF

echo "Settingup /boot/loader.conf"

cat << EOF >> /boot/loader.conf

#
# network tunables below
net.inet.tcp.syncache.bucketlimit=900
net.inet.tcp.syncache.hashsize=1024
net.inet.tcp.syncache.cachelimit=184320
net.inet.tcp.tcbhashsize=16384

EOF

echo "Setting up cvsupfile"
cat << EOF > /mnt/etc/cvsupfile

#
# minimal cvsup file for world - use portsnap for ports
# -bw- 2011-04-27
#
*default host=cvsup5.freebsd.org
*default base=/var/db
*default prefix=/usr
*default release=cvs tag=RELENG_8_2
*default delete-rel-suffix

src-all

EOF

echo "Grabbing kernel and world sources"

chroot /mnt /usr/bin/csup -L2 -g /etc/cvsupfile
#
# set up /etc/hosts
#
mv /mnt/etc/hosts /mnt/etc/hosts.sample

cat << EOF > /mnt/etc/hosts

127.0.0.1	localhost.${DOMAIN} localhost
127.0.0.1	${COOKEDHOST}.${DOMAIN} ${COOKEDHOST}

EOF


umount /cdrom

#

echo
echo "Initial install complete.  Please remove the CDrom and reboot"
echo
exit 0