A script to generate environment variables based on clouds.yaml details

## Project description

A tool to convert from an OpenStack clouds.yaml file to environment variables. This can be useful when all you have is a clouds.yaml file but you need to work with a legacy tool like novaclient.

Like openstacksdk, clouds2env will look in the following location for clouds.yaml files:

• . (the current directory)

• $HOME/.config/openstack • /etc/openstack The first file found wins. You can also set the environment variable OS_CLIENT_CONFIG_FILE to an absolute path of a file to look for and that location will be inserted at the front of the file search list. You can specify the cloud to generate environment variables for by setting the OS_CLOUD environment variable. Alternatively, you may provide the cloud name as an argument to tool. ## Usage$ clouds2env --help
usage: clouds2env [-h] [--set | --unset] [cloud]

A tool to convert from an OpenStack 'clouds.yaml' file to 'OS_'-prefixed
environment variables suitable for use with legacy tooling like novaclient.

positional arguments:
cloud       the cloud to use

options:
-h, --help  show this help message and exit
--set       set environment variables (default)
--unset     unset environment variables

## Example

$export OS_CLOUD=devstack-admin$ clouds2env
export OS_AUTH_URL=http://10.0.108.84/identity
export OS_PROJECT_DOMAIN_ID=default
export OS_USER_DOMAIN_ID=default
export OS_IDENTITY_API_VERSION=3
export OS_REGION_NAME=RegionOne
export OS_VOLUME_API_VERSION=3
$eval$(clouds2env)

Copyright (c) 2022 Stephen Finucane <stephen@that.guru>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.