adding a new host to the FSF cluster

Instead of following the howto or resurect from backup, the z2-5 host of the FSF France ganeti cluster was recreated from scratch.

These notes require access to the cluster to be fully readable.

OVH squeeze 64
pksns1.pokersource.vm.gnt:/etc/bind/db.pokersource.info : z2-5 IN A 188.165.199.118 ;; ks3096497.kimsufi.com
ssh pksns1.pokersource.vm.gnt /etc/init.d/bind9 reload

root@ks3096497:~/.ssh# rm authorized_keys2
root@ks3096497:~/.ssh# wget -O authorized_keys http://dachary.org/loic/id_rsa.pub

rsync -avH z2-8.pokersource.info:/etc/ganeti/hooks/ /etc/ganeti/hooks/
echo LANG=C > /etc/default/locale
/etc/crontab #*/1 * * * * root /usr/local/rtm/bin/rtm 51 > /dev/null 2> /dev/null
/etc/default/grub GRUB_DEFAULT=1
umount /home
remove /home from /etc/fstab
apt-get install linux-image-2.6.32-5-amd64
reboot
hostname z2-5.host.gnt
echo z2-5.host.gnt > /etc/hostname
apt-get remove lwresd
apt-get install dhcp3-server shorewall bind9 ganeti2
apt-get install etckeeper
scp z2-8.pokersource.info:/etc/hosts /etc
/etc/ssh/sshd_config PasswordAuthentication no

root@z2-5:/etc#
rsync --delete -avH z2-8.pokersource.info:/etc/bind/ bind/
rsync --delete -avH z2-8.pokersource.info:/etc/shorewall/ shorewall/
rsync --delete -avH z2-8.pokersource.info:/etc/dhcp3/ dhcp3/
mv /etc/dhcp /tmp
ln -s /etc/dhcp3 /etc/dhcp

/etc/default/isc-dhcp-server INTERFACES=”br0″
scp z2-8.pokersource.info:/etc/network/interfaces /tmp

Copy from /tmp/interfaces

auto lo:1
iface lo:1 inet static
        address 10.10.0.5
        netmask 255.255.255.255
        up ip route add blackhole 10.0.0.0/8


auto br0
iface br0 inet static
        address 10.10.0.254
        netmask 255.255.255.255
        bridge_ports none
	bridge_stp off
        bridge_maxwait 5
        up ip route add 10.10.0.254 dev br0

# z2-51.pokersource.info
auto eth0:1
iface eth0:1 inet static
      address 87.98.233.209
      netmask 255.255.255.255
      post-up ip route change default via 188.165.199.254 dev eth0 src 87.98.233.209

ifup lo:1 ; ifup br0 ; ifup eth0:1
/etc/init.d/isc-dhcp-server restart
apt-get install mercurial

/etc/shorewall/params.local

IP_MAIN=188.165.199.118
IP_FAILOVER=87.98.233.209
VM_PROXY=10.10.1.27

/etc/default/shorewall startup=1
apt-get install openvpn
rsync --delete -avH z2-8.pokersource.info:/etc/openvpn/ openvpn/
rm /etc/openvpn/*
scp z2-8.pokersource.info:/usr/local/bin/buildconf.sh /usr/local/bin
/usr/local/bin/buildconf.sh .pokersource.info
manually change z2-x.pokersource.info into z2-x1.pokersource.info in each /etc/openvpn/client-5-to-x.conf as buildconf.sh fails to do it
in the OVH interface move the z2-51.pokersource.info IP to the z2-5.pokersource.info host
apt-get install quagga
rsync --delete -avH z2-8.pokersource.info:/etc/quagga/ quagga/
/etc/quagga/ospfd.conf change hostname z2-5-ospfd and router-id 10.10.0.5
/etc/quagga/zebra.conf change hostname z2-5.host.gnt
/etc/init.d/quagga start

add to munin.pokersource.info in /etc/munin/munin.conf

[z2-5.pokersource.info]
    address z2-5.host.gnt
    use_node_name yes
    df.contacts nagios
    df.notify_alias Disk Usage
    iostat.contacts nagios
    iostat.notify_alias IO Stats
    cpu.contacts nagios
    cpu.notify_alias CPU usage
    memory.contacts nagios
    memory.notify_alias Memory usage
    if_eth0.contacts nagios
    if_eth0.notify_alias eth0 traffic
    if_err_eth0.contacts nagios
    if_err_eth0.notify_alias eth0 errors

apt-get install munin-node
/etc/munin/munin-node.conf allow ^.*$

from http://trac.fsffrance.org/wiki/PatchInventory#Munin

wget -O /usr/share/munin/plugins/kvm_cpu http://exchange.munin-monitoring.org/plugins/kvm_cpu/version/2/download
wget -O /usr/share/munin/plugins/kvm_mem http://exchange.munin-monitoring.org/plugins/kvm_mem/version/1/download
wget -O /usr/share/munin/plugins/kvm_io http://exchange.munin-monitoring.org/plugins/kvm_io/version/2/download
wget -O /usr/share/munin/plugins/kvm_net http://exchange.munin-monitoring.org/plugins/kvm_net/version/2/download
chmod +x /usr/share/munin/plugins/kvm_*
munin-node-configure --suggest --shell --families contrib
munin-node-configure --suggest --shell --families contrib | bash
/etc/init.d/munin-node restart

pvcreate /dev/sda2
vgcreate all /dev/sda2
z2-8.host.gnt: gnt-node add –readd z2-5.host.gnt
z2-8.host.gnt: gnt-node modify –offline=no z2-5.host.gnt
echo drbd minor_count=128 usermode_helper=/bin/true >> /etc/module
modprobe drbd minor_count=128 usermode_helper=/bin/true
/etc/init.d/drbd start
apt-get install ntp