Booting from a Cinder volume gives a number of benefits as an OpenStack Operator. You can provide a level of resiliency to your instances, or you can enable Live-Migration of an instance where you are not counting on Libvirt to migrate the disk for you.
Ensure you are logged in to the Ubuntu host where the cinder command-line utilities are installed and source your OpenStack environment admin credentials.
To boot an instance from a volume, we first need to select an image to boot from as well as a flavor of our choice. The steps are follows:
Get the UUID of the image to boot:
nova image-listThe command generates the following output:
Get the flavor ID for
m1.tiny:nova flavor-listThe command generates the following output:
Since our lab environment is configured with two networks, we will need to choose the network to attach our instance to. First, list available networks:
neutron net-listThe available networks will be displayed:
Finally, we...