The following method was tested using Debian 6.0.6 on Essex version of OpenStack. The OpenStack cloud was setup using the procedure given in the following link.
OpenStack Beginner’s Guide V3.0
Create a raw image which emulates the Hard Drive.
kvm-img create -f qcow2 debian.img 5G
Start the Virtual Machine booting from the CD using the following command.
kvm -m 256 -cdrom debian-6.0.6-amd64-CD-1.iso -drive file=debian.img,if=virtio,index=0 -boot d -net nic -net user -nographic -vnc :1
Connect to the Virtual Machine through VNC (use display number :1).For Example, where 10.10.10.1 is the IP address of the host machine.
vncviewer 10.10.10.1 :1
Select SSH server, Curl and other packages needed, during installation. Once the installation is over shutdown the Virtual Machine. Start the Virtual Machine to boot from the Hard Drive using the following command.
kvm -m 256 -drive file=debian.img,if=virtio,index=0,boot=on -boot c -net nic -net user -nographic -vnc :1
Do the necessary changes needed for the image.For key injection add the following lines before ‘exit 0’ in the file /etc/rc.local.
mkdir -p /root/.ssh echo >> /root/.ssh/authorized_keys curl -m 10 -s http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key | grep 'ssh-rsa' >> /root/.ssh/authorized_keys echo "AUTHORIZED_KEYS:" echo "************************" cat /root/.ssh/authorized_keys echo "************************"
Also remove the network persistence rules from /etc/udev/rules.d as their presence will result in the network interface in the instance coming up as an interface other than eth0.
rm -rf /etc/udev/rules.d/70-persistent-net.rules
Shutdown the Virtual Machine. Upload the image to OpenStack using the following command
glance add name="Debian6" is_public=true container_format=ovf disk_format=qcow2 <debian.img
The following output shows that the image has been successfully uploaded.
glance index
The output will be something like
ID Name Disk Container Size
Format Format
----------- ------------ ------- ---------- ----------
<Image-ID> Debian6 qcow2 ovf 2399141888
Start the instance with the image that was uploaded.
nova boot --flavor 1 --image <Image-ID> --key_name mykey myinstance
