Creating custom flavors for virtual machines

In the compute cluster, a configuration template for virtual machines is called a flavor. Flavors simplify VM deployment. They allow you to set the number of virtual CPU cores and the amount of RAM a virtual machine will use. By default, five predefined flavors are created with the following parameters:

Name	vCPUs	Memory
tiny	1	512 MiB
small	1	2 GiB
medium	2	4 GiB
large	4	8 GiB
xlarge	8	16 GiB

You can create custom flavors with different sets of vCPU and RAM resources, or delete existing flavors, including the predefined ones.

To create a custom flavor

Admin panel

On the Compute > Virtual machines > Flavors tab, click Create flavor.
In the Create flavor window, specify a flavor name, a number of virtual CPU cores, an amount of RAM, and then click Create.

Command-line interface

Use the following command:

vinfra service compute flavor create [--swap <size-mb>] --vcpus <vcpus> --ram <size-mb> <flavor-name>

--swap <size-mb>: Swap space size, in megabytes
--vcpus <vcpus>: Number of virtual CPUs
--ram <size-mb>: Memory size, in megabytes
<flavor-name>: Flavor name

For example, to create a flavor called myflavor with 1 vCPU and 3 GB of RAM, run:

# vinfra service compute flavor create myflavor --vcpus 1 --ram 3072

The new flavor will appear in the vinfra service compute flavor list output:

# vinfra service compute flavor list
+--------------------------------------+----------+-------+------+-------+
| id                                   | name     | ram   | swap | vcpus |
+--------------------------------------+----------+-------+------+-------+
| 100                                  | tiny     | 512   | 0    | 1     |
| 101                                  | small    | 2048  | 0    | 1     |
| 102                                  | medium   | 4096  | 0    | 2     |
| 103                                  | large    | 8192  | 0    | 4     |
| 104                                  | xlarge   | 16384 | 0    | 8     |
| 2e32ebd2-5d83-45fd-a526-3ae4a6658078 | myflavor | 3072  | 0    | 1     |
+--------------------------------------+----------+-------+------+-------+

To delete a flavor

Admin panel

On the Compute > Virtual machines > Flavors tab, select the flavor you want to delete, and then click Delete.
Click Delete in the confirmation window.

Command-line interface

Use the following command:

vinfra service compute flavor delete <flavor>

<flavor>: Flavor ID or name

For example, to delete the flavor myflavor, run:

# vinfra service compute flavor delete myflavor