OpenStack Compute (Nova) Client
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Matt Riedemann adf7d1e48c Remove deprecated network-related resource commands
In Newton we deprecated the various network-related resource
commands which were either for nova-network or were proxy
APIs to Neutron, because of the 2.36 microversion which deprecated
those APIs.

This removes the deprecated commands. Because of the size of this
change, the deprecated python API binding removals will come in a
separate change.

Change-Id: I6ecca49e7208f9dc0969bf377930a729c4b407b8
2017-02-23 08:56:27 -05:00
doc Blacklist rather than whitelist autodoc modules 2016-12-30 11:49:03 -05:00
novaclient Remove deprecated network-related resource commands 2017-02-23 08:56:27 -05:00
releasenotes Remove deprecated network-related resource commands 2017-02-23 08:56:27 -05:00
tools Use upper-constraints when running tox 2016-11-29 11:33:42 -05:00
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CONTRIBUTING.rst Workflow documentation is now in infra-manual 2014-12-05 03:30:40 +00:00
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Python bindings to the OpenStack Nova API

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This is a client for the OpenStack Nova API. There's a Python API (the novaclient module), and a command-line script (nova). Each implements 100% of the OpenStack Nova API.

See the OpenStack CLI guide for information on how to use the nova command-line tool. You may also want to look at the OpenStack API documentation.

python-novaclient is licensed under the Apache License like the rest of OpenStack.

Contents:

Command-line API

Installing this package gets you a shell command, nova, that you can use to interact with any OpenStack cloud.

You'll need to provide your OpenStack username and password. You can do this with the --os-username, --os-password and --os-project-name params, but it's easier to just set them as environment variables:

export OS_USERNAME=<username>
export OS_PASSWORD=<password>
export OS_PROJECT_NAME=<project-name>

You will also need to define the authentication url with --os-auth-url and the version of the API with --os-compute-api-version. Or set them as environment variables as well and set the OS_AUTH_URL to the keystone endpoint:

export OS_AUTH_URL=http://<url-to-openstack-keystone>:5000/v3/
export OS_COMPUTE_API_VERSION=2.1

Since Keystone can return multiple regions in the Service Catalog, you can specify the one you want with --os-region-name (or export OS_REGION_NAME). It defaults to the first in the list returned.

You'll find complete documentation on the shell by running nova help

Python API

There's also a complete Python API, with documentation linked below.

To use with keystone as the authentication system:

>>> from keystoneauth1.identity import v3
>>> from keystoneauth1 import session
>>> from novaclient import client
>>> auth = v3.Password(auth_url='http://example.com:5000/v3',
...                    username='username',
...                    password='password',
...                    project_name='project-name',
...                    user_domain_id='default',
...                    project_domain_id='default')
>>> sess = session.Session(auth=auth)
>>> nova = client.Client("2.1", session=sess)
>>> nova.flavors.list()
[...]
>>> nova.servers.list()
[...]
>>> nova.keypairs.list()
[...]

Testing

There are multiple test targets that can be run to validate the code.

  • tox -e pep8 - style guidelines enforcement
  • tox -e py27 - traditional unit testing
  • tox -e functional - live functional testing against an existing openstack

Functional testing assumes the existence of a clouds.yaml file as supported by os-client-config (http://docs.openstack.org/developer/os-client-config) It assumes the existence of a cloud named devstack that behaves like a normal devstack installation with a demo and an admin user/tenant - or clouds named functional_admin and functional_nonadmin.