Python bindings to the OpenStack Heat API¶

Python API¶

In order to use the python api directly, you must first obtain an auth token and identify which endpoint you wish to speak to:

>>> tenant_id = 'b363706f891f48019483f8bd6503c54b'
>>> heat_url = 'http://heat.example.org:8004/v1/%s' % tenant_id
>>> auth_token = '3bcc3d3a03f44e3d8377f9247b0ad155'

Once you have done so, you can use the API like so:

>>> from heatclient.client import Client
>>> heat = Client('1', endpoint=heat_url, token=auth_token)

Alternatively, you can create a client instance using the keystoneauth session API:

>>> from keystoneauth1 import loading
>>> from keystoneauth1 import session
>>> from heatclient import client
>>> loader = loading.get_plugin_loader('password')
>>> auth = loader.load_from_options(auth_url=AUTH_URL,
...                                 username=USERNAME,
...                                 password=PASSWORD,
...                                 project_id=PROJECT_ID)
>>> sess = session.Session(auth=auth)
>>> heat = client.Client('1', session=sess)
>>> heat.stacks.list()

If you have PROJECT_NAME instead of a PROJECT_ID, use the project_name parameter. Similarly, if your cloud uses keystone v3 and you have a DOMAIN_NAME or DOMAIN_ID, provide it as user_domain_(name|id) and if you are using a PROJECT_NAME also provide the domain information as project_domain_(name|id).

For more information on keystoneauth API, see Using Sessions.

OpenStackClient Command Line¶

The preferred way of accessing Heat via the command line is using the python-heatclient’s plugin for python-openstackclient. Heat commands are available through the openstack CLI command when both python-heatclient and python-openstackclient are installed.

Legacy Command-line Tool¶

The heat command is provided as a legacy CLI option. Users should prefer using the python-openstackclient plugin via the openstack command instead.

In order to use the CLI, you must provide your OpenStack username, password, tenant, and auth endpoint. Use the corresponding configuration options (--os-username, --os-password, --os-tenant-id, and --os-auth-url) or set them in environment variables:

export OS_USERNAME=user
export OS_PASSWORD=pass
export OS_TENANT_ID=b363706f891f48019483f8bd6503c54b
export OS_AUTH_URL=http://auth.example.com:5000/v2.0

The command line tool will attempt to reauthenticate using your provided credentials for every request. You can override this behavior by manually supplying an auth token using --heat-url and --os-auth-token. You can alternatively set these environment variables:

export HEAT_URL=http://heat.example.org:8004/v1/b363706f891f48019483f8bd6503c54b
export OS_AUTH_TOKEN=3bcc3d3a03f44e3d8377f9247b0ad155

Once you’ve configured your authentication parameters, you can run heat help to see a complete listing of available commands.

Contributing¶

Code is mirrored on GitHub. Submit bugs to the python-heatclient project on Launchpad. Submit code to the openstack/python-heatclient project using Gerrit.