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README.rst

Python bindings to the OpenStack Identity API (Keystone)

This is a client for the OpenStack Identity API, implemented by Keystone. There's a Python API (the keystoneclient module), and a command-line script (keystone).

Development takes place via the usual OpenStack processes as outlined in the `OpenStack wiki`_. The master repository is on GitHub__.

This code a fork of `Rackspace's python-novaclient`__ which is in turn a fork of `Jacobian's python-cloudservers`__. The python-keystoneclient is licensed under the Apache License like the rest of OpenStack.

Python API

By way of a quick-start:

# use v2.0 auth with http://example.com:5000/v2.0
>>> from keystoneclient.v2_0 import client
>>> keystone = client.Client(username=USERNAME, password=PASSWORD, tenant_name=TENANT, auth_url=AUTH_URL)
>>> keystone.tenants.list()
>>> tenant = keystone.tenants.create(tenant_name="test", description="My new tenant!", enabled=True)
>>> tenant.delete()

Command-line API

Installing this package gets you a shell command, keystone, that you can use to interact with OpenStack's Identity API.

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

export OS_TENANT_NAME=project
export OS_USERNAME=user
export OS_PASSWORD=pass

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

export OS_AUTH_URL=http://example.com:5000/v2.0
export OS_IDENTITY_API_VERSION=2.0

Alternatively, to bypass username/password authentication, you can provide a pre-established token. In Keystone, this approach is necessary to bootstrap the service with an administrative user, tenant & role (to do so, provide the client with the value of your admin_token defined in keystone.conf in addition to the URL of your admin API deployment, typically on port 35357):

export OS_SERVICE_TOKEN=thequickbrownfox-jumpsover-thelazydog
export OS_SERVICE_ENDPOINT=http://example.com:35357/v2.0

Since the Identity service can return multiple regions in the service catalog, you can specify the one you want with --os-region-name (or export OS_REGION_NAME):

export OS_REGION_NAME=north

Warning

If a region is not specified and multiple regions are returned by the Identity service, the client may not access the same region consistently.

If you need to connect to a server that is TLS-enabled (the auth URL begins with 'https') and it uses a certificate from a private CA or a self-signed certificate you will need to specify the path to an appropriate CA certificate to use to validate the server certificate with --os-cacert or an environment variable:

export OS_CACERT=/etc/ssl/my-root-cert.pem

Certificate verification can be turned off using --insecure. This should be used with caution.

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

usage: keystone [--version] [--timeout <seconds>]
                [--os-username <auth-user-name>]
                [--os-password <auth-password>]
                [--os-tenant-name <auth-tenant-name>]
                [--os-tenant-id <tenant-id>] [--os-auth-url <auth-url>]
                [--os-region-name <region-name>]
                [--os-identity-api-version <identity-api-version>]
                [--os-token <service-token>]
                [--os-endpoint <service-endpoint>]
                [--os-cacert <ca-certificate>] [--insecure]
                [--os-cert <certificate>] [--os-key <key>] [--os-cache]
                [--force-new-token] [--stale-duration <seconds>]
                <subcommand> ...

Command-line interface to the OpenStack Identity API.

Positional arguments:
<subcommand>
    catalog
    ec2-credentials-create
                        Create EC2-compatible credentials for user per tenant
    ec2-credentials-delete
                        Delete EC2-compatible credentials
    ec2-credentials-get
                        Display EC2-compatible credentials
    ec2-credentials-list
                        List EC2-compatible credentials for a user
    endpoint-create     Create a new endpoint associated with a service
    endpoint-delete     Delete a service endpoint
    endpoint-get
    endpoint-list       List configured service endpoints
    password-update     Update own password
    role-create         Create new role
    role-delete         Delete role
    role-get            Display role details
    role-list           List all roles
    service-create      Add service to Service Catalog
    service-delete      Delete service from Service Catalog
    service-get         Display service from Service Catalog
    service-list        List all services in Service Catalog
    tenant-create       Create new tenant
    tenant-delete       Delete tenant
    tenant-get          Display tenant details
    tenant-list         List all tenants
    tenant-update       Update tenant name, description, enabled status
    token-get
    user-create         Create new user
    user-delete         Delete user
    user-get            Display user details.
    user-list           List users
    user-password-update
                        Update user password
    user-role-add       Add role to user
    user-role-list      List roles granted to a user
    user-role-remove    Remove role from user
    user-update         Update user's name, email, and enabled status
    discover            Discover Keystone servers, supported API versions and
                        extensions.
    bootstrap           Grants a new role to a new user on a new tenant, after
                        creating each.
    bash-completion     Prints all of the commands and options to stdout.
    help                Display help about this program or one of its
                        subcommands.

Optional arguments:
--version               Shows the client version and exits
--timeout <seconds>     Set request timeout (in seconds)
--os-username <auth-user-name>
                        Name used for authentication with the OpenStack
                        Identity service. Defaults to env[OS_USERNAME]
--os-password <auth-password>
                        Password used for authentication with the OpenStack
                        Identity service. Defaults to env[OS_PASSWORD]
--os-tenant-name <auth-tenant-name>
                        Tenant to request authorization on. Defaults to
                        env[OS_TENANT_NAME]
--os-tenant-id <tenant-id>
                        Tenant to request authorization on. Defaults to
                        env[OS_TENANT_ID]
--os-auth-url <auth-url>
                        Specify the Identity endpoint to use for
                        authentication. Defaults to env[OS_AUTH_URL]
--os-region-name <region-name>
                        Defaults to env[OS_REGION_NAME]
--os-identity-api-version <identity-api-version>
                        Defaults to env[OS_IDENTITY_API_VERSION] or 2.0
--os-token <service-token>
                        Specify an existing token to use instead of retrieving
                        one via authentication (e.g. with username &
                        password). Defaults to env[OS_SERVICE_TOKEN]
--os-endpoint <service-endpoint>
                        Specify an endpoint to use instead of retrieving one
                        from the service catalog (via authentication).
                        Defaults to env[OS_SERVICE_ENDPOINT]
--os-cacert <ca-certificate>
                        Specify a CA bundle file to use in verifying a TLS
                        (https) server certificate. Defaults to env[OS_CACERT]
--insecure              Explicitly allow keystoneclient to perform "insecure"
                        TLS (https) requests. The server's certificate will
                        not be verified against any certificate authorities.
                        This option should be used with caution.
--os-cert <certificate>
                        Defaults to env[OS_CERT]
--os-key <key>          Defaults to env[OS_KEY]
--os-cache              Use the auth token cache. Defaults to env[OS_CACHE]
--force-new-token       If the keyring is available and in use, token will
                        always be stored and fetched from the keyring until
                        the token has expired. Use this option to request a
                        new token and replace the existing one in the keyring.
--stale-duration <seconds>
                        Stale duration (in seconds) used to determine whether
                        a token has expired when retrieving it from keyring.
                        This is useful in mitigating process or network
                        delays. Default is 30 seconds.

See "keystone help COMMAND" for help on a specific command.
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