These scripts are based on cloud-init to setup the initial root password and re-configurate disk partitions automatically. (For Zelin Openstack)

This document details how to make Linux image with our cloud-init-scripts in Zelin. CentOS-6.4 is used as an example here, but it should not be limited to any specific Linux distribution.

• create VM image by "qemu-img create -f raw <image-name> <size>"
• install CentOS from ISO. (Note: Do not enable virtio during the whole installation; make sure to allocate 1G mem at least for the VM)
• In the hard disk partition step of installation, make sure to create two primary partitions: one (1~2GB) for swap and the other for the "/".
• After complete installation, enable virtio to reboot VM.

In case the VM eth[x] is not enabled, try to configure "/etc/sysconfig/network-scripts/ifcfg-eth[x]" to OnBoot=yes and reboot VM. Make sure eth[x] get an ip and is able to access public resource. * yum install cloud-init python-pip Note: If no cloud-init is found, try a different yum repo or download cloud-init from official site.

• Download a copy of cloud-init-scripts

Unzip the zip-ball

chmod +x *.py
chmod +x *.sh
./install.py (if any error occurs, retry it after ./uninstall.sh)

• reboot VM. This step cloud-init will be initialized. (Probably, during VM startups it will throw server (169.254.169.254) connection errors and take a couple of minutes polling. Be patient and take it easy to wait for it timeout.:)
• edit "/etc/udev/rules.d/70-persistent-net.rules" and remove all the eth[x] entries. (This is especially for CentOS)

ps: 1. In CentOs, if you don't remove eth[x] entry in this file, when the image is launched by openstack, the NIC created by openstack will not be eth0, which makes cloud-init not working correctly. 2. For other Linux distributions, please check if you need do this step.

• edit "/etc/sysconfig/network-scripts/ifcfg-eth[x]"

OnBoot=yes
NM_Controller=no
remove HWADDR, UUID

• history -c to clear all the history commands.

Shutdown VM! Don't reboot vm! Reboot will destroy the previous configuration.

The image is ready for glance and cinder.