osclient

OpenStack client library with simplified authentication and client management.

Features

• Simplified OpenStack authentication using environment variables or direct parameters
• Support for multiple OpenStack services (Nova, Keystone, Cinder, Neutron, Glance, Allocation)
• Two authentication approaches: OpenStack (using keystoneauth1) and OpenStack2 (direct REST API)
• Lazy loading of service clients

Installation

pip install osclient

Usage

Using OpenStack class (keystoneauth1-based)

from osclient import OpenStack

# Using environment variables
os_client = OpenStack()

# Or with explicit parameters
os_client = OpenStack(
    auth_url='https://keystone.example.com:5000/v3',
    project_id='your-project-id',
    username='your-username',
    password='your-password'
)

# Access service clients
servers = os_client.nova.servers.list()
images = os_client.glance.images.list()

Using OpenStack2 class (REST API-based)

from osclient import OpenStack2

os_client = OpenStack2(
    auth_url='https://keystone.example.com:5000/v3',
    project_name='your-project-name',
    username='your-username',
    password='your-password'
)

# Query services directly
servers = os_client.query('compute', 'servers')

Environment Variables

The library supports standard OpenStack environment variables:

• OS_AUTH_URL
• OS_PROJECT_ID or OS_TENANT_ID
• OS_PROJECT_NAME or OS_TENANT_NAME
• OS_USERNAME
• OS_PASSWORD
• OS_USER_DOMAIN_ID (defaults to 'default')
• OS_PROJECT_DOMAIN_ID (defaults to 'default')

Requirements

• Python 3.6+
• keystoneauth1
• python-novaclient
• python-keystoneclient
• python-cinderclient
• python-neutronclient
• nectarallocationclient
• python-glanceclient
• requests

Development

Building

To build the package, install the build dependencies and run:

# Install build dependencies
pip install build wheel

# Build source and wheel distributions
python -m build

This will create dist/ directory with both source distribution (.tar.gz) and wheel (.whl) files.

Alternatively, you can install the package in development mode:

pip install -e .

Testing

Install the development dependencies:

pip install -e ".[dev]"

Run the tests:

# Run all tests
pytest

# Run tests with coverage
pytest --cov=osclient --cov-report=html

# Run specific test file
pytest test/test_v1.py
pytest test/test_v2.py

Publishing

To publish the package to PyPI:

1. Build the package (see Building section above)

2. Install twine (if not already installed):

   pip install twine

3. Upload to TestPyPI (recommended for first-time publishing):

   twine upload --repository testpypi dist/*

4. Upload to PyPI:

   twine upload dist/*

   You will be prompted for your PyPI credentials. Alternatively, you can use an API token by setting:

   export TWINE_USERNAME=__token__
   export TWINE_PASSWORD=your_pypi_api_token

Note: Make sure to update the version number in both setup.py and pyproject.toml before publishing a new release.

License

MIT