Using image metadata

We can set arbitrary metadata to help describe images and how they are associated to other OpenStack components. This specific data that is set during image creation or updated at a later time can be used to enable specific functionality in other OpenStack services or to simply allow a custom description of the images.

Getting ready

To begin with, ensure you are logged in to our Ubuntu client where we can run the glance tool. This can be installed using the following command:

sudo apt-get update
sudo apt-get install python-glanceclient

Ensure that you have your environment variable set up correctly with our admin user and password, as created in the previous chapter:

export OS_TENANT_NAME=cookbook
export OS_USERNAME=admin
export OS_PASSWORD=openstack
export OS_AUTH_URL=https://192.168.100.200:5000/v2.0/
export OS_NO_CACHE=1
export OS_KEY=/vagrant/cakey.pem
export OS_CACERT=/vagrant/ca.pem

How to do it...

Image metadata can be added, updated, and deleted, as well as used for...