VM Image Guide January 6, 2015 current
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Table of Contents
Preface ........................................................................................................................... vi
Conventions ............................................................................................................ vi
Document change history ....................................................................................... vi
1. Introduction ................................................................................................................ 1
Disk and container formats for images .................................................................... 3
Image metadata ..................................................................................................... 4
2. Get images .................................................................................................................. 7
CirrOS (test) images ................................................................................................ 7
Official Ubuntu images ............................................................................................ 7
Official Red Hat Enterprise Linux images ................................................................. 7
Official Fedora images ............................................................................................. 8
Official openSUSE and SLES images ......................................................................... 8
Official Debian images ............................................................................................ 8
Official images from other Linux distributions .......................................................... 8
Rackspace Cloud Builders (multiple distros) images .................................................. 9
Microsoft Windows images ..................................................................................... 9
3. OpenStack Linux image requirements ........................................................................ 10
Disk partitions and resize root partition on boot (cloud-init) .................................. 10
No hard-coded MAC address information .............................................................. 12
Ensure ssh server runs ........................................................................................... 13
Disable firewall ...................................................................................................... 13
Access instance by using ssh public key (cloud-init) ................................................. 13
Process user data and other metadata (cloud-init) ................................................. 14
Ensure image writes boot log to console ............................................................... 15
Paravirtualized Xen support in the kernel (Xen hypervisor only) ............................. 15
Manage the image cache ...................................................................................... 15
4. Modify images .......................................................................................................... 17
guestfish ............................................................................................................... 17
guestmount ........................................................................................................... 19
virt-* tools ............................................................................................................. 19
Loop devices, kpartx, network block devices .......................................................... 20
5. Create images manually ............................................................................................ 24
Verify the libvirt default network is running .......................................................... 24
Use the virt-manager X11 GUI ............................................................................... 24
Use virt-install and connect by using a local VNC client ........................................... 26
Example: CentOS image ........................................................................................ 27
Example: Ubuntu image ........................................................................................ 34
Example: Fedora image ......................................................................................... 41
Example: Microsoft Windows image ...................................................................... 44
Example: FreeBSD image ....................................................................................... 46
6. Tool support for image creation ................................................................................ 50
Oz ......................................................................................................................... 50
VMBuilder ............................................................................................................. 51
BoxGrinder ............................................................................................................ 52
VeeWee ................................................................................................................ 52
Packer ................................................................................................................... 52
imagefactory ......................................................................................................... 52
SUSE Studio ........................................................................................................... 52
