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Chapter 2. Configuring OpenStack’s Keystone for the Ceph Object Gateway
As a storage administrator, you can use OpenStack’s Keystone authentication service to authenticate users through the Ceph Object Gateway. Before you can configure the Ceph Object Gateway, you must configure Keystone which will enable the Swift service and point to the Ceph Object Gateway.
2.1. Prerequisites
- A running Red Hat OpenStack Platform 13, 15, or 16 environment.
- A running Red Hat Ceph Storage environment.
- A running Ceph Object Gateway environment.
2.2. Creating the Swift service
Before configuring the Ceph Object Gateway, configure Keystone so that the Swift service is enabled and pointing to the Ceph Object Gateway.
Prerequisites
- A running Red Hat Ceph Storage cluster.
- Access to the Ceph software repository.
- Root-level access to OpenStack controller node.
Procedure
- Create the Swift service: - openstack service create --name=swift --description="Swift Service" object-store - [root@swift~]# openstack service create --name=swift --description="Swift Service" object-store- Copy to Clipboard Copied! - Toggle word wrap Toggle overflow - Creating the service will echo the service settings. - Expand - Table 2.1. Example - Field - Value - description - Swift Service - enabled - True - id - 37c4c0e79571404cb4644201a4a6e5ee - name - swift - type - object-store 
2.3. Setting the Ceph Object Gateway endpoints
After creating the Swift service, point the service to a Ceph Object Gateway.
Prerequisites
- A running Red Hat Ceph Storage cluster.
- Access to the Ceph software repository.
- A running Swift service on a Red Hat OpenStack Platform 13, 15, or 16 environment.
Procedure
- Create the OpenStack endpoints pointing to the Ceph Object Gateway: - Syntax - openstack endpoint create --region REGION_NAME swift admin "URL" openstack endpoint create --region REGION_NAME swift public "URL" openstack endpoint create --region REGION_NAME swift internal "URL" - openstack endpoint create --region REGION_NAME swift admin "URL" openstack endpoint create --region REGION_NAME swift public "URL" openstack endpoint create --region REGION_NAME swift internal "URL"- Copy to Clipboard Copied! - Toggle word wrap Toggle overflow - Replace REGION_NAME with the name of the gateway’s zone group name or region name. Replace URL with URLs appropriate for the Ceph Object Gateway. - Example - openstack endpoint create --region us-west swift admin "http://radosgw.example.com:8080/swift/v1" openstack endpoint create --region us-west swift public "http://radosgw.example.com:8080/swift/v1" openstack endpoint create --region us-west swift internal "http://radosgw.example.com:8080/swift/v1" - [root@osp ~]# openstack endpoint create --region us-west swift admin "http://radosgw.example.com:8080/swift/v1" [root@osp ~]# openstack endpoint create --region us-west swift public "http://radosgw.example.com:8080/swift/v1" [root@osp ~]# openstack endpoint create --region us-west swift internal "http://radosgw.example.com:8080/swift/v1"- Copy to Clipboard Copied! - Toggle word wrap Toggle overflow - Expand - Field - Value - adminurl - id - e4249d2b60e44743a67b5e5b38c18dd3- internalurl - publicurl - region - us-west- service_id - 37c4c0e79571404cb4644201a4a6e5ee- service_name - swift- service_type - object-store- Setting the endpoints will output the service endpoint settings. 
2.4. Verifying Openstack is using the Ceph Object Gateway endpoints
After creating the Swift service and setting the endpoints, show the endpoints to ensure that all settings are correct.
Prerequisites
- A running Red Hat Ceph Storage cluster.
- Access to the Ceph software repository.
Procedure
- Verify settings in the configuration file:
openstack endpoint show object-store
[root@swift~]# openstack endpoint show object-storeShowing the endpoints will echo the endpoints settings, and the service settings.
| Field | Value | 
|---|---|
| adminurl | |
| enabled | True | 
| id | e4249d2b60e44743a67b5e5b38c18dd3 | 
| internalurl | |
| publicurl | |
| region | us-west | 
| service_id | 37c4c0e79571404cb4644201a4a6e5ee | 
| service_name | swift | 
| service_type | object-store |