sahara-image-elements/diskimage-create/Create_CentOS_cloud_image.rst

This element setups our CentOS cloud image (http://savanna-files.mirantis.com/CentOS-6.4-cloud-init.qcow2): 1. Disable filesystem checks; 2. Use specifies for CentOS only map-package and install-package files; 3. Install redhat-lsb package for using command lsb_release.

For preparing your own CentOS cloud image with pre-installed cloud-init you should follow this guide: CentOS cloud image

In the end you should check installation of cloud-init packege.

You should mount your image and check some files. Follow this example to mount cloud image using qemu:

sudo modprobe nbd max_part=63
sudo qemu-nbd -c /dev/nbd0 CentOS_image_name.qcow2
sudo partprobe /dev/nbd0
sudo mount /dev/nbd0p1 /mnt/qemu
sudo chroot /mnt/qemu

Check files:

1. File '/etc/cloud/cloud.cfg' should contain these lines:

default_user:

name: cloud-user lock_passwd: true gecos: CentOS Cloud User groups: [wheel, adm] sudo: ["ALL=(ALL) NOPASSWD:ALL"] shell: /bin/bash

Add them if they are not exist.

2. File '/etc/fstab'. Check that fifth and sixth fields contain value '0'.