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4.1. a) and 4.2 a)
In this setup we will create four virtual machines. Two servers for redundant
data storage and two clients, each running a dom0.
Network configuration is done using static IPs:
server1: 10.0.2.172
server2: 10.0.2.173
virt_serv: 10.0.2.174
client1: 10.0.2.83
client2: 10.0.2.84
All of the following is executed by several factors faster after installation
of kvm for qemu:
apt-get install qemu-kvm
The tutorial assumes a 64 bit host. For a 32 bit host, change
qemu-system-x86_64 to qemu-system-i386 and change amd64 in the installer url to
i386.
The tutorial also assumes a Debian host (any release of lenny or newer should
work) and a working apt-cacher setup. To setup apt-cacher, do:
apt-get install apt-cacher
If you dont want to use apt-cacher, you have to adapt the package sources in
the scripts.
Get the debian wheezy installer:
wget http://cdimage.debian.org/cdimage/daily-builds/daily/arch-latest/kfreebsd-amd64/iso-cd/debian-testing-kfreebsd-amd64-businesscard.iso
Install vde for a userspace switched network between all connected qemu
instances:
apt-get install vde2
And start it (sending it to the background) together with slirp which provides
connection to the outside using slirp networking (just as qemu user mode
networking):
vde_switch -daemon
slirpvde -dhcp -daemon
Starting slirp with dhcp enabled is necessary for the debian-installer to
acquire an initial IP (giving all settings as isolinux arguments is tedious and
errorprone) and for the domus to get an IP.
Create two disk images for the two server machines and two for the client
machines:
dd if=/dev/zero of=server1.img bs=1 count=1 seek=3000MiB
dd if=/dev/zero of=server2.img bs=1 count=1 seek=3000MiB
dd if=/dev/zero of=client1.img bs=1 count=1 seek=3000MiB
dd if=/dev/zero of=client2.img bs=1 count=1 seek=3000MiB
Start the machines with these images, giving them all the debian installer
cdrom and connecting them to the vde network.
qemu-system-x86_64 -m 256 -hda server1.img -net nic,macaddr=DE:AD:BE:EF:BE:9D -net vde,sock=/tmp/vde.ctl -cdrom debian-testing-amd64-businesscard.iso
qemu-system-x86_64 -m 256 -hda server2.img -net nic,macaddr=DE:AD:BE:EF:74:E9 -net vde,sock=/tmp/vde.ctl -cdrom debian-testing-amd64-businesscard.iso
qemu-system-x86_64 -m 256 -hda client1.img -net nic,macaddr=DE:AD:BE:EF:D4:4A -net vde,sock=/tmp/vde.ctl -cdrom debian-testing-amd64-businesscard.iso
qemu-system-x86_64 -m 256 -hda client2.img -net nic,macaddr=DE:AD:BE:EF:78:01 -net vde,sock=/tmp/vde.ctl -cdrom debian-testing-amd64-businesscard.iso
The isolinux boot menu will pop up. Choose "Advanced options" and then select
"Automated install" and press [TAB] to edit the boot commandline. Append the
preseed url for debconf like this to the end of each of the installers
respectively:
preseed/url=http://mister-muffin.de/debian/server1.txt
preseed/url=http://mister-muffin.de/debian/server2.txt
preseed/url=http://mister-muffin.de/debian/client1.txt
preseed/url=http://mister-muffin.de/debian/client2.txt
Press enter and get yourself a coffee. After everything is finished the
machines will automatically shut down.
Now start all machines by using:
qemu-system-x86_64 -m 256 -hda server1.img -net nic,macaddr=DE:AD:BE:EF:BE:9D -net vde,sock=/tmp/vde.ctl -nographic
qemu-system-x86_64 -m 256 -hda server2.img -net nic,macaddr=DE:AD:BE:EF:74:E9 -net vde,sock=/tmp/vde.ctl -nographic
qemu-system-x86_64 -m 1000 -hda client1.img -net nic,macaddr=DE:AD:BE:EF:D4:4A -net vde,sock=/tmp/vde.ctl -nographic
qemu-system-x86_64 -m 1000 -hda client2.img -net nic,macaddr=DE:AD:BE:EF:78:01 -net vde,sock=/tmp/vde.ctl -nographic
The two clients get more ram now because they have to host domus.
A firstboot sysv-init script will initialize drbd on the meta partition for
both servers and start the synchronization by setting server1 as the primary
host.
When this is done, extract a root filesystem of your choice into
/data/export/vm01 on server1.
Creating a root filesystem to share via nfs can be done by using debootstrap
and then manually configuring it [1] or by running xen-create-image, then
editing /etc/fstab and then putting the result on server1.
xen-create-image --hostname=vm01 --dir=/root --dhcp --noswap --size=400Mb
For convenience I did the above and put a tarball with debian wheezy online. On
server1, do:
mkdir /data/export/vm01
wget -O - http://mister-muffin.de/debian/nfs-root-wheezy-amd64.tar | tar -x -C /data/export/vm01
Username: root
Password: root
After the rootfilesystem is in place you can start the domu on client1:
xm create /etc/xen/vm01.cfg
And migrate it to client2:
xm migrate --live vm01 client2
tadaa! :)
1/2:
drbdadm create-md res
#drbdadm up all
1:
#drbdadm -- --do-what-I-say primary all
drbdadm -- --overwrite-data-of-peer primary all
#drbdadm -- connect all
#drbdadm primary
[1] http://blog.mister-muffin.de/2011/11/21/xen-hypervisor-on-qemu-kvm-and-domu-nfs-boot-with-vde/

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# preseed options use dhcp for installation
# temporary hostname during installation will be "install"
d-i debian-installer/locale string en_US
d-i console-keymaps-at/keymap select us
d-i keyboard-configuration/xkb-keymap select us
d-i netcfg/choose_interface select auto
d-i netcfg/get_hostname string install
d-i netcfg/get_domain string foobar.org
d-i mirror/country string manual
d-i mirror/http/hostname string 10.0.2.2:3142
d-i mirror/http/directory string /ftp.de.debian.org/debian
d-i mirror/suite string wheezy
d-i mirror/udeb/suite string wheezy
d-i passwd/root-login boolean true
d-i passwd/make-user boolean false
d-i passwd/root-password password root
d-i passwd/root-password-again password root
d-i clock-setup/utc boolean true
d-i time/zone string UTC
d-i clock-setup/ntp boolean true
d-i partman-auto/method string regular
d-i partman-auto/choose_recipe select atomic
d-i partman-partitioning/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true
d-i base-installer/install-recommends boolean false
d-i base-installer/kernel/image select none
tasksel tasksel/first multiselect
d-i pkgsel/include string xen-linux-system-amd64 xen-tools xen-utils bridge-utils nfs-common
d-i finish-install/reboot_in_progress note
popularity-contest popularity-contest/participate boolean true
d-i debian-installer/exit/poweroff boolean true
# differences in the late_command string are only the static ip in
# /etc/network/interfaces and the hostname in /etc/hostname and
# localhost in /etc/hosts
d-i preseed/late_command string \
echo 'T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100' >> /target/etc/inittab; \
mv /target/etc/grub.d/10_linux /target/etc/grub.d/21_linux; \
echo 'GRUB_CMDLINE_LINUX="console=ttyS0"' >> /target/etc/default/grub; \
echo 'GRUB_TERMINAL=serial' >> /target/etc/default/grub; \
in-target update-grub; \
echo '127.0.0.1 localhost' > /target/etc/hosts; \
echo '127.0.1.1 client1' >> /target/etc/hosts; \
echo '10.0.2.174 server' >> /target/etc/hosts; \
echo '10.0.2.83 client1' >> /target/etc/hosts; \
echo '10.0.2.84 client2' >> /target/etc/hosts; \
echo 'client1' > /target/etc/hostname; \
echo 'nameserver 10.0.2.3' > /target/etc/resolv.conf; \
echo 'auto lo' > /target/etc/network/interfaces; \
echo 'iface lo inet loopback' >> /target/etc/network/interfaces; \
echo 'auto eth0' >> /target/etc/network/interfaces; \
echo 'iface eth0 inet static' >> /target/etc/network/interfaces; \
echo ' address 10.0.2.83' >> /target/etc/network/interfaces; \
echo ' netmask 255.255.255.0' >> /target/etc/network/interfaces; \
echo ' gateway 10.0.2.2' >> /target/etc/network/interfaces; \
echo '(network-script network-bridge)' >> /target/etc/xen/xend-config.sxp; \
echo '(xend-relocation-server yes)' >> /target/etc/xen/xend-config.sxp; \
echo '(xend-relocation-port 8002)' >> /target/etc/xen/xend-config.sxp; \
echo '(xend-relocation-address '')' >> /target/etc/xen/xend-config.sxp; \
echo '(xend-relocation-hosts-allow '"''"')' >> /target/etc/xen/xend-config.sxp; \
echo 'kernel = "/boot/vmlinuz-3.1.0-1-amd64"' > /target/etc/xen/vm01.cfg; \
echo 'ramdisk = "/boot/initrd.img-3.1.0-1-amd64"' >> /target/etc/xen/vm01.cfg; \
echo 'vcpus = "1"' >> /target/etc/xen/vm01.cfg; \
echo 'memory = "128"' >> /target/etc/xen/vm01.cfg; \
echo 'name = "vm01"' >> /target/etc/xen/vm01.cfg; \
echo 'hostname = "vm01"' >> /target/etc/xen/vm01.cfg; \
echo 'dhcp = "dhcp"' >> /target/etc/xen/vm01.cfg; \
echo 'vif = [ "mac=00:16:3E:C7:09:32" ]' >> /target/etc/xen/vm01.cfg; \
echo 'nfs_server = "10.0.2.174"' >> /target/etc/xen/vm01.cfg; \
echo 'nfs_root = "/data/export/vm01"' >> /target/etc/xen/vm01.cfg; \
echo 'root = "/dev/nfs"' >> /target/etc/xen/vm01.cfg; \
echo 'extra = "boot=nfs root=/dev/nfs"' >> /target/etc/xen/vm01.cfg; \
echo 'on_poweroff = "destroy"' >> /target/etc/xen/vm01.cfg; \
echo 'on_reboot = "restart"' >> /target/etc/xen/vm01.cfg; \
echo 'on_crash = "restart"' >> /target/etc/xen/vm01.cfg;

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# preseed options use dhcp for installation
# temporary hostname during installation will be "install"
d-i debian-installer/locale string en_US
d-i console-keymaps-at/keymap select us
d-i keyboard-configuration/xkb-keymap select us
d-i netcfg/choose_interface select auto
d-i netcfg/get_hostname string install
d-i netcfg/get_domain string foobar.org
d-i mirror/country string manual
d-i mirror/http/hostname string 10.0.2.2:3142
d-i mirror/http/directory string /ftp.de.debian.org/debian
d-i mirror/suite string wheezy
d-i mirror/udeb/suite string wheezy
d-i passwd/root-login boolean true
d-i passwd/make-user boolean false
d-i passwd/root-password password root
d-i passwd/root-password-again password root
d-i clock-setup/utc boolean true
d-i time/zone string UTC
d-i clock-setup/ntp boolean true
d-i partman-auto/method string regular
d-i partman-auto/choose_recipe select atomic
d-i partman-partitioning/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true
d-i base-installer/install-recommends boolean false
d-i base-installer/kernel/image select none
tasksel tasksel/first multiselect
d-i pkgsel/include string xen-linux-system-amd64 xen-tools xen-utils bridge-utils nfs-common
d-i finish-install/reboot_in_progress note
popularity-contest popularity-contest/participate boolean true
d-i debian-installer/exit/poweroff boolean true
# differences in the late_command string are only the static ip in
# /etc/network/interfaces and the hostname in /etc/hostname and
# localhost in /etc/hosts
d-i preseed/late_command string \
echo 'T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100' >> /target/etc/inittab; \
mv /target/etc/grub.d/10_linux /target/etc/grub.d/21_linux; \
echo 'GRUB_CMDLINE_LINUX="console=ttyS0"' >> /target/etc/default/grub; \
echo 'GRUB_TERMINAL=serial' >> /target/etc/default/grub; \
in-target update-grub; \
echo '127.0.0.1 localhost' > /target/etc/hosts; \
echo '127.0.1.1 client2' >> /target/etc/hosts; \
echo '10.0.2.174 server' >> /target/etc/hosts; \
echo '10.0.2.83 client1' >> /target/etc/hosts; \
echo '10.0.2.84 client2' >> /target/etc/hosts; \
echo 'client2' > /target/etc/hostname; \
echo 'nameserver 10.0.2.3' > /target/etc/resolv.conf; \
echo 'auto lo' > /target/etc/network/interfaces; \
echo 'iface lo inet loopback' >> /target/etc/network/interfaces; \
echo 'auto eth0' >> /target/etc/network/interfaces; \
echo 'iface eth0 inet static' >> /target/etc/network/interfaces; \
echo ' address 10.0.2.84' >> /target/etc/network/interfaces; \
echo ' netmask 255.255.255.0' >> /target/etc/network/interfaces; \
echo ' gateway 10.0.2.2' >> /target/etc/network/interfaces; \
echo '(network-script network-bridge)' >> /target/etc/xen/xend-config.sxp; \
echo '(xend-relocation-server yes)' >> /target/etc/xen/xend-config.sxp; \
echo '(xend-relocation-port 8002)' >> /target/etc/xen/xend-config.sxp; \
echo '(xend-relocation-address '')' >> /target/etc/xen/xend-config.sxp; \
echo '(xend-relocation-hosts-allow '"''"')' >> /target/etc/xen/xend-config.sxp; \
echo 'kernel = "/boot/vmlinuz-3.1.0-1-amd64"' > /target/etc/xen/vm01.cfg; \
echo 'ramdisk = "/boot/initrd.img-3.1.0-1-amd64"' >> /target/etc/xen/vm01.cfg; \
echo 'vcpus = "1"' >> /target/etc/xen/vm01.cfg; \
echo 'memory = "128"' >> /target/etc/xen/vm01.cfg; \
echo 'name = "vm01"' >> /target/etc/xen/vm01.cfg; \
echo 'hostname = "vm01"' >> /target/etc/xen/vm01.cfg; \
echo 'dhcp = "dhcp"' >> /target/etc/xen/vm01.cfg; \
echo 'vif = [ "mac=00:16:3E:C7:09:32" ]' >> /target/etc/xen/vm01.cfg; \
echo 'nfs_server = "10.0.2.174"' >> /target/etc/xen/vm01.cfg; \
echo 'nfs_root = "/data/export/vm01"' >> /target/etc/xen/vm01.cfg; \
echo 'root = "/dev/nfs"' >> /target/etc/xen/vm01.cfg; \
echo 'extra = "boot=nfs root=/dev/nfs"' >> /target/etc/xen/vm01.cfg; \
echo 'on_poweroff = "destroy"' >> /target/etc/xen/vm01.cfg; \
echo 'on_reboot = "restart"' >> /target/etc/xen/vm01.cfg; \
echo 'on_crash = "restart"' >> /target/etc/xen/vm01.cfg;

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# preseed options use dhcp for installation
# temporary hostname during installation will be "install"
d-i debian-installer/locale string en_US
d-i console-keymaps-at/keymap select us
d-i keyboard-configuration/xkb-keymap select us
d-i netcfg/choose_interface select auto
d-i netcfg/get_hostname string install
d-i netcfg/get_domain string foobar.org
d-i mirror/country string manual
d-i mirror/http/hostname string 10.0.2.2:3142
d-i mirror/http/directory string /ftp.de.debian.org/debian
d-i mirror/suite string wheezy
d-i mirror/udeb/suite string wheezy
d-i passwd/root-login boolean true
d-i passwd/make-user boolean false
d-i passwd/root-password password root
d-i passwd/root-password-again password root
d-i clock-setup/utc boolean true
d-i time/zone string UTC
d-i clock-setup/ntp boolean true
d-i partman-auto/method string regular
d-i partman-auto/expert_recipe string \
my-layout :: \
1000 1000 1500 ext4 \
$primary{ } \
$bootable{ } \
method{ format } \
format{ } \
use_filesystem{ } \
filesystem{ ext4 } \
mountpoint{ / } \
label{ root } \
. \
150 150 150 ext4 \
label{ drbd-meta } \
. \
300 1000 -1 ext4 \
method{ format } \
format{ } \
use_filesystem{ } \
filesystem{ ext4 } \
label{ drbd-data } \
.
d-i partman-basicfilesystems/no_mount_point boolean false
d-i partman-basicfilesystems/no_swap boolean false
d-i partman-ext3/no_mount_point boolean false
d-i partman-ext4/no_mount_point boolean false
d-i partman-partitioning/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true
d-i base-installer/install-recommends boolean false
tasksel tasksel/first multiselect
d-i pkgsel/include string ntp ntpdate nfs-kernel-server drbd8-utils heartbeat
d-i finish-install/reboot_in_progress note
popularity-contest popularity-contest/participate boolean true
d-i debian-installer/exit/poweroff boolean true
# differences in the late_command string are only the static ip in
# /etc/network/interfaces and the hostname in /etc/hostname and
# localhost in /etc/hosts
# also, `drbdadm primary all` will only called from firstboot on server1
d-i preseed/late_command string \
echo 'T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100' >> /target/etc/inittab; \
echo 'GRUB_CMDLINE_LINUX="console=ttyS0"' >> /target/etc/default/grub; \
echo 'GRUB_TERMINAL=serial' >> /target/etc/default/grub; \
in-target update-grub; \
in-target update-rc.d -f nfs-kernel-server remove; \
in-target update-rc.d -f nfs-common remove; \
echo '/data/export/ 10.0.2.0/255.255.255.0(rw,no_root_squash,no_all_squash,sync,no_subtree_check)' > /target/etc/exports; \
echo 'global {' > /target/etc/drbd.conf; \
echo ' usage-count no;' >> /target/etc/drbd.conf; \
echo '}' >> /target/etc/drbd.conf; \
echo 'resource res {' >> /target/etc/drbd.conf; \
echo ' protocol C;' >> /target/etc/drbd.conf; \
echo ' startup { degr-wfc-timeout 120; }' >> /target/etc/drbd.conf; \
echo ' disk { on-io-error detach; }' >> /target/etc/drbd.conf; \
echo ' net {}' >> /target/etc/drbd.conf; \
echo ' on server1 {' >> /target/etc/drbd.conf; \
echo ' device /dev/drbd0;' >> /target/etc/drbd.conf; \
echo ' disk /dev/sda6;' >> /target/etc/drbd.conf; \
echo ' address 10.0.2.172:7788;' >> /target/etc/drbd.conf; \
echo ' meta-disk /dev/sda5[0];' >> /target/etc/drbd.conf; \
echo ' }' >> /target/etc/drbd.conf; \
echo ' on server2 {' >> /target/etc/drbd.conf; \
echo ' device /dev/drbd0;' >> /target/etc/drbd.conf; \
echo ' disk /dev/sda6;' >> /target/etc/drbd.conf; \
echo ' address 10.0.2.173:7788;' >> /target/etc/drbd.conf; \
echo ' meta-disk /dev/sda5[0];' >> /target/etc/drbd.conf; \
echo ' }' >> /target/etc/drbd.conf; \
echo '}' >> /target/etc/drbd.conf; \
echo 'logfacility local0' > /target/etc/heartbeat/ha.cf; \
echo 'keepalive 2' >> /target/etc/heartbeat/ha.cf; \
echo 'deadtime 30' >> /target/etc/heartbeat/ha.cf; \
echo 'bcast eth0' >> /target/etc/heartbeat/ha.cf; \
echo 'node server1 server2' >> /target/etc/heartbeat/ha.cf; \
echo 'server1 IPaddr::10.0.2.174/24/eth0 drbddisk::res Filesystem::/dev/drbd0::/data::ext4 nfs-kernel-server' > /target/etc/heartbeat/haresources; \
echo 'auth 3' > /target/etc/heartbeat/authkeys; \
echo '3 md5 somerandomstring' >> /target/etc/heartbeat/authkeys; \
chmod 600 /target/etc/heartbeat/authkeys; \
echo '127.0.0.1 localhost' > /target/etc/hosts; \
echo '127.0.1.1 server1' >> /target/etc/hosts; \
echo '10.0.2.172 server1' >> /target/etc/hosts; \
echo '10.0.2.173 server2' >> /target/etc/hosts; \
echo '10.0.2.83 client1' >> /target/etc/hosts; \
echo '10.0.2.84 client2' >> /target/etc/hosts; \
echo 'server1' > /target/etc/hostname; \
echo 'nameserver 10.0.2.3' > /target/etc/resolv.conf; \
echo 'auto lo' > /target/etc/network/interfaces; \
echo 'iface lo inet loopback' >> /target/etc/network/interfaces; \
echo 'auto eth0' >> /target/etc/network/interfaces; \
echo 'iface eth0 inet static' >> /target/etc/network/interfaces; \
echo ' address 10.0.2.172' >> /target/etc/network/interfaces; \
echo ' netmask 255.255.255.0' >> /target/etc/network/interfaces; \
echo ' gateway 10.0.2.2' >> /target/etc/network/interfaces; \
mkdir /target/data; \
mount /dev/sda6 /target/data; \
mv /target/var/lib/nfs/ /target/data/; \
mkdir /target/data/export; \
umount /target/data; \
ln -s /data/nfs/ /target/var/lib/nfs; \
echo '#!/bin/sh -e' > /target/etc/init.d/firstboot; \
echo '### BEGIN INIT INFO' >> /target/etc/init.d/firstboot; \
echo '# Provides: firstboot' >> /target/etc/init.d/firstboot; \
echo '# Required-Start: $all' >> /target/etc/init.d/firstboot; \
echo '# Required-Stop:' >> /target/etc/init.d/firstboot; \
echo '# Default-Start: 2 3 4 5' >> /target/etc/init.d/firstboot; \
echo '# Default-Stop: 0 1 6' >> /target/etc/init.d/firstboot; \
echo '### END INIT INFO' >> /target/etc/init.d/firstboot; \
echo 'echo "running firstboot script"' >> /target/etc/init.d/firstboot; \
echo 'update-rc.d -f firstboot remove' >> /target/etc/init.d/firstboot; \
echo 'ifconfig > foobar' >> /target/etc/init.d/firstboot; \
echo 'cat /proc/drbd >> foobar' >> /target/etc/init.d/firstboot; \
echo 'drbdadm create-md res' >> /target/etc/init.d/firstboot; \
echo '/etc/init.d/drbd restart' >> /target/etc/init.d/firstboot; \
echo 'drbdadm -- --overwrite-data-of-peer primary all' >> /target/etc/init.d/firstboot; \
chmod +x /target/etc/init.d/firstboot; \
in-target update-rc.d firstboot defaults;

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# preseed options use dhcp for installation
# temporary hostname during installation will be "install"
d-i debian-installer/locale string en_US
d-i console-keymaps-at/keymap select us
d-i keyboard-configuration/xkb-keymap select us
d-i netcfg/choose_interface select auto
d-i netcfg/get_hostname string install
d-i netcfg/get_domain string foobar.org
d-i mirror/country string manual
d-i mirror/http/hostname string 10.0.2.2:3142
d-i mirror/http/directory string /ftp.de.debian.org/debian
d-i mirror/suite string wheezy
d-i mirror/udeb/suite string wheezy
d-i passwd/root-login boolean true
d-i passwd/make-user boolean false
d-i passwd/root-password password root
d-i passwd/root-password-again password root
d-i clock-setup/utc boolean true
d-i time/zone string UTC
d-i clock-setup/ntp boolean true
d-i partman-auto/method string regular
d-i partman-auto/expert_recipe string \
my-layout :: \
1000 1000 1500 ext4 \
$primary{ } \
$bootable{ } \
method{ format } \
format{ } \
use_filesystem{ } \
filesystem{ ext4 } \
mountpoint{ / } \
label{ root } \
. \
150 150 150 ext4 \
label{ drbd-meta } \
. \
300 1000 -1 ext4 \
method{ format } \
format{ } \
use_filesystem{ } \
filesystem{ ext4 } \
label{ drbd-data } \
.
d-i partman-basicfilesystems/no_mount_point boolean false
d-i partman-basicfilesystems/no_swap boolean false
d-i partman-ext3/no_mount_point boolean false
d-i partman-ext4/no_mount_point boolean false
d-i partman-partitioning/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true
d-i partman/confirm_nooverwrite boolean true
d-i base-installer/install-recommends boolean false
tasksel tasksel/first multiselect
d-i pkgsel/include string ntp ntpdate nfs-kernel-server drbd8-utils heartbeat
d-i finish-install/reboot_in_progress note
popularity-contest popularity-contest/participate boolean true
d-i debian-installer/exit/poweroff boolean true
# differences in the late_command string are only the static ip in
# /etc/network/interfaces and the hostname in /etc/hostname and
# localhost in /etc/hosts
# also, `drbdadm primary all` will only called from firstboot on server1
d-i preseed/late_command string \
echo 'T0:23:respawn:/sbin/getty -L ttyS0 9600 vt100' >> /target/etc/inittab; \
echo 'GRUB_CMDLINE_LINUX="console=ttyS0"' >> /target/etc/default/grub; \
echo 'GRUB_TERMINAL=serial' >> /target/etc/default/grub; \
in-target update-grub; \
in-target update-rc.d -f nfs-kernel-server remove; \
in-target update-rc.d -f nfs-common remove; \
echo '/data/export/ 10.0.2.0/255.255.255.0(rw,no_root_squash,no_all_squash,sync,no_subtree_check)' > /target/etc/exports; \
echo 'global {' > /target/etc/drbd.conf; \
echo ' usage-count no;' >> /target/etc/drbd.conf; \
echo '}' >> /target/etc/drbd.conf; \
echo 'resource res {' >> /target/etc/drbd.conf; \
echo ' protocol C;' >> /target/etc/drbd.conf; \
echo ' startup { degr-wfc-timeout 120; }' >> /target/etc/drbd.conf; \
echo ' disk { on-io-error detach; }' >> /target/etc/drbd.conf; \
echo ' net {}' >> /target/etc/drbd.conf; \
echo ' on server1 {' >> /target/etc/drbd.conf; \
echo ' device /dev/drbd0;' >> /target/etc/drbd.conf; \
echo ' disk /dev/sda6;' >> /target/etc/drbd.conf; \
echo ' address 10.0.2.172:7788;' >> /target/etc/drbd.conf; \
echo ' meta-disk /dev/sda5[0];' >> /target/etc/drbd.conf; \
echo ' }' >> /target/etc/drbd.conf; \
echo ' on server2 {' >> /target/etc/drbd.conf; \
echo ' device /dev/drbd0;' >> /target/etc/drbd.conf; \
echo ' disk /dev/sda6;' >> /target/etc/drbd.conf; \
echo ' address 10.0.2.173:7788;' >> /target/etc/drbd.conf; \
echo ' meta-disk /dev/sda5[0];' >> /target/etc/drbd.conf; \
echo ' }' >> /target/etc/drbd.conf; \
echo '}' >> /target/etc/drbd.conf; \
echo 'logfacility local0' > /target/etc/heartbeat/ha.cf; \
echo 'keepalive 2' >> /target/etc/heartbeat/ha.cf; \
echo 'deadtime 30' >> /target/etc/heartbeat/ha.cf; \
echo 'bcast eth0' >> /target/etc/heartbeat/ha.cf; \
echo 'node server1 server2' >> /target/etc/heartbeat/ha.cf; \
echo 'server1 IPaddr::10.0.2.174/24/eth0 drbddisk::res Filesystem::/dev/drbd0::/data::ext4 nfs-kernel-server' > /target/etc/heartbeat/haresources; \
echo 'auth 3' > /target/etc/heartbeat/authkeys; \
echo '3 md5 somerandomstring' >> /target/etc/heartbeat/authkeys; \
chmod 600 /target/etc/heartbeat/authkeys; \
echo '127.0.0.1 localhost' > /target/etc/hosts; \
echo '127.0.1.1 server2' >> /target/etc/hosts; \
echo '10.0.2.172 server1' >> /target/etc/hosts; \
echo '10.0.2.173 server2' >> /target/etc/hosts; \
echo '10.0.2.83 client1' >> /target/etc/hosts; \
echo '10.0.2.84 client2' >> /target/etc/hosts; \
echo 'server2' > /target/etc/hostname; \
echo 'nameserver 10.0.2.3' > /target/etc/resolv.conf; \
echo 'auto lo' > /target/etc/network/interfaces; \
echo 'iface lo inet loopback' >> /target/etc/network/interfaces; \
echo 'auto eth0' >> /target/etc/network/interfaces; \
echo 'iface eth0 inet static' >> /target/etc/network/interfaces; \
echo ' address 10.0.2.173' >> /target/etc/network/interfaces; \
echo ' netmask 255.255.255.0' >> /target/etc/network/interfaces; \
echo ' gateway 10.0.2.2' >> /target/etc/network/interfaces; \
mkdir /target/data; \
mount /dev/sda6 /target/data; \
mv /target/var/lib/nfs/ /target/data/; \
mkdir /target/data/export; \
umount /target/data; \
ln -s /data/nfs/ /target/var/lib/nfs; \
echo '#!/bin/sh -e' > /target/etc/init.d/firstboot; \
echo '### BEGIN INIT INFO' >> /target/etc/init.d/firstboot; \
echo '# Provides: firstboot' >> /target/etc/init.d/firstboot; \
echo '# Required-Start: $all' >> /target/etc/init.d/firstboot; \
echo '# Required-Stop:' >> /target/etc/init.d/firstboot; \
echo '# Default-Start: 2 3 4 5' >> /target/etc/init.d/firstboot; \
echo '# Default-Stop: 0 1 6' >> /target/etc/init.d/firstboot; \
echo '### END INIT INFO' >> /target/etc/init.d/firstboot; \
echo 'echo "running firstboot script"' >> /target/etc/init.d/firstboot; \
echo 'update-rc.d -f firstboot remove' >> /target/etc/init.d/firstboot; \
echo 'ifconfig > foobar' >> /target/etc/init.d/firstboot; \
echo 'cat /proc/drbd >> foobar' >> /target/etc/init.d/firstboot; \
echo 'drbdadm create-md res' >> /target/etc/init.d/firstboot; \
echo '/etc/init.d/drbd restart' >> /target/etc/init.d/firstboot; \
chmod +x /target/etc/init.d/firstboot; \
in-target update-rc.d firstboot defaults;