openstack-manuals/doc/install-guide/source/keystone-services.rst

Create the service entity and API endpoints

The Identity service provides a catalog of services and their locations. Each service that you add to your OpenStack environment requires a service entity and several API endpoints<API endpoint> in the catalog.

Prerequisites

obs or rdo or ubuntu

By default, the Identity service database contains no information to support conventional authentication and catalog services. You must use a temporary authentication token that you created in the section called keystone-install to initialize the service entity and API endpoint for the Identity service.

debian

Note

The packages can automatically create the service entity and API endpoints.

You must pass the value of the authentication token to the openstack command with the --os-token parameter or set the OS_TOKEN environment variable. Similarly, you must also pass the value of the Identity service URL to the openstack command with the --os-url parameter or set the OS_URL environment variable. This guide uses environment variables to reduce command length.

Warning

For security reasons, do not use the temporary authentication token for longer than necessary to initialize the Identity service.

1. Configure the authentication token:

   $ export OS_TOKEN=ADMIN_TOKEN

   obs or rdo or ubuntu

   Replace ADMIN_TOKEN with the authentication token that you generated in the section called keystone-install. For example:

   $ export OS_TOKEN=294a4c8a8a475f9b9836

2. Configure the endpoint URL:

   $ export OS_URL=http://controller:35357/v3

   debian

   Note

   The packages can automatically create the service entity and API endpoint.

3. Configure the Identity API version:

   $ export OS_IDENTITY_API_VERSION=3

Create the service entity and API endpoints

1. The Identity service manages a catalog of services in your OpenStack environment. Services use this catalog to determine the other services available in your environment.

   Create the service entity for the Identity service:

   $ openstack service create \
     --name keystone --description "OpenStack Identity" identity
   +-------------+----------------------------------+
   | Field       | Value                            |
   +-------------+----------------------------------+
   | description | OpenStack Identity               |
   | enabled     | True                             |
   | id          | 4ddaae90388b4ebc9d252ec2252d8d10 |
   | name        | keystone                         |
   | type        | identity                         |
   +-------------+----------------------------------+

   Note

   OpenStack generates IDs dynamically, so you will see different values in the example command output.

2. The Identity service manages a catalog of API endpoints associated with the services in your OpenStack environment. Services use this catalog to determine how to communicate with other services in your environment.

   OpenStack uses three API endpoint variants for each service: admin, internal, and public. The admin API endpoint allows modifying users and tenants by default, while the public and internal APIs do not allow these operations. In a production environment, the variants might reside on separate networks that service different types of users for security reasons. For instance, the public API network might be visible from the Internet so customers can manage their clouds. The admin API network might be restricted to operators within the organization that manages cloud infrastructure. The internal API network might be restricted to the hosts that contain OpenStack services. Also, OpenStack supports multiple regions for scalability. For simplicity, this guide uses the management network for all endpoint variations and the default RegionOne region.

   Create the Identity service API endpoints:

   $ openstack endpoint create --region RegionOne \
     identity public http://controller:5000/v2.0
   +--------------+----------------------------------+
   | Field        | Value                            |
   +--------------+----------------------------------+
   | enabled      | True                             |
   | id           | 30fff543e7dc4b7d9a0fb13791b78bf4 |
   | interface    | public                           |
   | region       | RegionOne                        |
   | region_id    | RegionOne                        |
   | service_id   | 8c8c0927262a45ad9066cfe70d46892c |
   | service_name | keystone                         |
   | service_type | identity                         |
   | url          | http://controller:5000/v2.0      |
   +--------------+----------------------------------+
   
   $ openstack endpoint create --region RegionOne \
     identity internal http://controller:5000/v2.0
   +--------------+----------------------------------+
   | Field        | Value                            |
   +--------------+----------------------------------+
   | enabled      | True                             |
   | id           | 57cfa543e7dc4b712c0ab137911bc4fe |
   | interface    | internal                         |
   | region       | RegionOne                        |
   | region_id    | RegionOne                        |
   | service_id   | 6f8de927262ac12f6066cfe70d99ac51 |
   | service_name | keystone                         |
   | service_type | identity                         |
   | url          | http://controller:5000/v2.0      |
   +--------------+----------------------------------+
   
   $ openstack endpoint create --region RegionOne \
     identity admin http://controller:35357/v2.0
   +--------------+----------------------------------+
   | Field        | Value                            |
   +--------------+----------------------------------+
   | enabled      | True                             |
   | id           | 78c3dfa3e7dc44c98ab1b1379122ecb1 |
   | interface    | admin                            |
   | region       | RegionOne                        |
   | region_id    | RegionOne                        |
   | service_id   | 34ab3d27262ac449cba6cfe704dbc11f |
   | service_name | keystone                         |
   | service_type | identity                         |
   | url          | http://controller:35357/v2.0     |
   +--------------+----------------------------------+

   Note

   Each service that you add to your OpenStack environment requires one or more service entities and three API endpoint variants in the Identity service.