cernops/nova-flavor-create

Name: nova-flavor-create

Owner: CERN Operations

Description: null

Created: 2015-05-09 19:55:19.0

Updated: 2015-05-09 21:47:58.0

Pushed: 2015-05-09 22:14:49.0

Homepage: null

Size: 128

Language: Python

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README

CERN Flavor Create

What is it?

It's a small tool that creates flavors in a cell environment.
It creates a flavor with the same row ID in all available cells.

The flavors in the children cells are always created as public.
In order to delete, disable or manage the the flavor with spefic tenants use nova api in the parent cell.

How to use it?

To see the available options run:

$python cern-flavor-create -h

usage: cern-flavor-create [-h] [–ephemeral EPHEMERAL] [–swap SWAP]

                      [--rxtx_factor RXTX_FACTOR] [--is_public IS_PUBLIC] 
                      [--config CONFIG] 
                      name id ram disk vcpus

positional arguments:

name - Name of the new flavor
id - UniqueID (integer or UUID) for the new flavor. If specifying 'auto', a UUID will be generated as id
ram - Memory size in MB
disk - Disk size in GB
vcpus - Number of vcpus

optional arguments:

-h, –help - show this help message and exit
–ephemeral EPHEMERAL - Ephemeral space size in GB (default 0)
–swap SWAP - Swap space size in MB (default 0)
–rxtx_factor RXTX_FACTOR - RX/TX factor (default 1)
–is_public IS_PUBLIC - Make flavor accessible to the public (default False)
–config CONFIG - Configuration file

Configuration File

The configuration file should contain the DBs locations for all cells and should be explicitly defined with the option –config
Example for an infrastructure with a parent cell and one child.

[default]
available_cells=cell_parent,cell_child

[cell_parent]
cell_type=parent
db_type=mysql
db_location=parent_db.cern.ch
db_port=3306
user=nova_user
password=db_parent_password
database=nova_parent

[cell_child]
cell_type=child
db_type=mysql
db_location=child_db.cern.ch
db_port=3306
user=nova_user
password=db_child_password
database=nova_child

Example

To create a flavor:
./cern-flavor-create –config cern-flavor-create.conf my_flavor auto 2048 20 2

Nova versions supported

We use it in Icehouse and Juno.

Bugs and Disclaimer

Bugs? Oh, almost certainly.

This tool was written to be used in the CERN Cloud Infrastructure and it has been tested only in our environment.

Since it updates nova DB use it with extremely caution.