Managing flavors
When an instance is launched, there has to be a definition of the amount of resources that will be allocated to the instance. In OpenStack, this is defined by what are called flavors. A flavor defines the quantum of virtual CPUs, RAM, and disk space that an instance will use when it launches. When Packstack installed your system earlier, it created a few flavors for you. Let's take a look at those. Go ahead and source a keystonerc file. If you don't have one sourced, then list the flavors, as follows:
control# nova flavor-list
You can create your own flavors if these don't fit your needs exactly. There's nothing magical about the ones that Packstack has created. They have been created close to what the rest of the cloud industry uses. We're not going to get too deep into flavors; we'll just use the preconfigured flavors that you have just listed.
