ComputeMode server appliance

Once logged, a script is executed the first time the appliance is booted to configure environment. This script named cmaskconfig is used to configure both environment of nodes in the /cm directory and the cmserver. So you will ask to answer several time to configure a timezone, keyboard mapping, locales [...]: once for images in /cm directory and once for your local virtual machine.

Execution of the cmaskconfig script during the first boot

To finish the installation, just edit the /etc/nerwork/interfaces file from the cmserver and configure your two new interfaces like following:

# The bridged/host-only interface:
auto eth0
iface eth0 inet static
       address 172.28.255.253
       netmask 255.255.0.0
# The NATed interface:
auto eth1
iface eth1 inet dhcp

Just reboot the cmserver to complete your installation

How to create nodes on VirtualBox to test the appliance

You can quickly create a diskless node for the computemode cluster:

Creation of a diskless node

and then configure the network of this node:

Network configuration of the diskless node

If your server is configured with a bridged interface, you have to configure a bridged one for the node:

Network configuration of the diskless node(bridged interface)

You you are using a host-only interface for your server, you need to use the some configuration for your node:

Network configuration of the diskless node(host-only interface)

And to finish configure the boot order of your node to set the network boot in first:

Boot order of the diskless node

Configuration of your new CMserver appliance for KVM

Installation of the CMserver appliance for KVM

You can use the basics KVM/QEMU softwares to configure your cmserver appliance:

Installation of the KVM/QEMU software under a Debian Squeeze:

 sudo apt-get install qemu-kvm libvirt-bin

Configuration of your user permissions:

 adduser <youruser> kvm

Run the following kvm command:

 kvm -m 1024 --boot c -vga std -net nic /PATH/TO/THE/FILE/ComputeMode_Appliance_2.0_kvm.qcow2

Some explanations:

-m the memory size used for the virtual appliaces, here 1GB
--boot the boot order ot the virtual appliance, here the local hard disk
-vga  the configuration of your graphical driver
-net the definition of your network card

You can also configure a bridged network connection to access through SSH to your new server:

Install missing packages:

 apt-get install bridge-utils uml-utilities

Edit your /etc/network/interfaces file:

auto lo
iface lo inet loopback
auto br0
iface br0 inet static
      address 172.28.255.224 
      netmask 255.255.0.0
      broadcast 172.28.255.255
      bridge_stp off
      bridge_maxwait 5
      bridge_fd 0
      pre-up /usr/sbin/tunctl -u <username> -t tap0
      pre-up ifconfig tap0 up
      bridge_ports eth0 tap0
      post-down ifconfig tap0 down
      post-down tunctl -d tap0

Restart your network:

sudo /etc/init.d/networking restart

Launch the appliance:

kvm -m 1024 --boot c -vga std -net nic -net tap,ifname=tap0,script=no,downscript=no /PATH/TO/THE/FILE/ComputeMode_Appliance_2.0_kvm.qcow2

You can customize your /etc/qemu-ifup script and /etc/qemu-ifdown script to manage users and tap devices and execute the previous command without the 'script=no,downscript=no' options.

How to test the computemode server

If you want to run some tests on your computemode server, you can follow this link: http://computemode.imag.fr/mediawiki/index.php/HowTo_test_cmserver

ComputeMode server appliance

Contents

Retrieving virtual appliances

Configuration of your new CMserver appliance for VirtualBox

Installation of the CMserver appliance for VirtualBox

Finishing the installation: configuration of the cmserver for VirtualBox

How to create nodes on VirtualBox to test the appliance

Configuration of your new CMserver appliance for KVM

Installation of the CMserver appliance for KVM

How to test the computemode server

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