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$> sudo yum install oz | $> sudo yum install oz | ||
Create a template definition file called <code> | Create a template definition file called <code>f16-jeos.tdl</code> containing: | ||
<nowiki> | <nowiki> | ||
<template> | <template> | ||
<name> | <name>fedora16_x86_64</name> | ||
<description>My Fedora | <description>My Fedora 16 x86_64 template</description> | ||
<os> | <os> | ||
<name>Fedora</name> | <name>Fedora</name> | ||
<version> | <version>16</version> | ||
<arch>x86_64</arch> | <arch>x86_64</arch> | ||
<install type='url'> | <install type='url'> | ||
<url>http://download.fedoraproject.org/pub/fedora/linux/releases/ | <url>http://download.fedoraproject.org/pub/fedora/linux/releases/16/Fedora/x86_64/os/</url> | ||
</install> | </install> | ||
</os> | </os> | ||
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Build the guest image | Build the guest image | ||
$> sudo oz-install -d4 -u | $> sudo oz-install -d4 -u f16-jeos.tdl | ||
Register the image with nova | Register the image with nova | ||
$> sudo nova-manage image image_register /var/lib/libvirt/images/ | $> sudo nova-manage image image_register /var/lib/libvirt/images/fedora16_x86_64.dsk 'admin' f16-jeos | ||
|results= | |results= | ||
Verify that the | Verify that the f16-jeos image is registered with the Glance image registry | ||
$> glance index | $> glance index | ||
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[[Category:OpenStack Test Cases]] | [[Category:OpenStack Test Cases]] | ||
Latest revision as of 14:17, 20 July 2012
Description
Building an Image With Oz
oz is a tool for automatically installing guest OSs with only minimal up-front input from the user.
Setup
Install the oz image builder
$> sudo yum install oz
Create a template definition file called f16-jeos.tdl
containing:
<template> <name>fedora16_x86_64</name> <description>My Fedora 16 x86_64 template</description> <os> <name>Fedora</name> <version>16</version> <arch>x86_64</arch> <install type='url'> <url>http://download.fedoraproject.org/pub/fedora/linux/releases/16/Fedora/x86_64/os/</url> </install> </os> <commands> <command name='setup-rc-local'> sed -i 's/rhgb quiet/console=ttyS0/' /boot/grub/grub.conf cat >> /etc/rc.local << EOF if [ ! -d /root/.ssh ]; then mkdir -p /root/.ssh chmod 700 /root/.ssh fi # Fetch public key using HTTP ATTEMPTS=10 while [ ! -f /root/.ssh/authorized_keys ]; do curl -f http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key > /tmp/aws-key 2>/dev/null if [ \$? -eq 0 ]; then cat /tmp/aws-key >> /root/.ssh/authorized_keys chmod 0600 /root/.ssh/authorized_keys restorecon /root/.ssh/authorized_keys rm -f /tmp/aws-key echo "Successfully retrieved AWS public key from instance metadata" else FAILED=\$((\$FAILED + 1)) if [ \$FAILED -ge \$ATTEMPTS ]; then echo "Failed to retrieve AWS public key after \$FAILED attempts, quitting" break fi echo "Could not retrieve AWS public key (attempt #\$FAILED/\$ATTEMPTS), retrying in 5 seconds..." sleep 5 fi done EOF </command> </commands> </template>
How to test
Build the guest image
$> sudo oz-install -d4 -u f16-jeos.tdl
Register the image with nova
$> sudo nova-manage image image_register /var/lib/libvirt/images/fedora16_x86_64.dsk 'admin' f16-jeos
Expected Results
Verify that the f16-jeos image is registered with the Glance image registry
$> glance index