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.. _radosgw support:
===========================
Ceph Object Gateway support
===========================
Overview
========
Ceph project is a powerful distributed storage system. It contains object store
and provides a RADOS Gateway Swift API which is compatible with OpenStack Swift
API.
Ironic added support for RADOS Gateway temporary URL in the Mitaka release.
Configure Ironic and Glance with RADOS Gateway
==============================================
#. Install Ceph storage with RADOS Gateway. See `Ceph documentation <http://docs.ceph.com/docs>`_.
#. Configure RADOS Gateway to use keystone for authentication. See
`Integrating with OpenStack Keystone <http://docs.ceph.com/docs/master/radosgw/keystone/>`_
#. Register RADOS Gateway endpoint in the keystone catalog, with the same
format swift uses, as the ``object-store`` service. URL example:
``http://rados.example.com:8080/swift/v1/AUTH_$(project_id)s``.
In the ceph configuration, make sure radosgw is configured with the
following value::
rgw swift account in url = True
#. Configure Glance API service for RADOS Swift API as backend. Edit the
configuration file for the Glance API service (is typically located at
``/etc/glance/glance-api.conf``)::
[glance_store]
stores = file, http, swift
default_store = swift
default_swift_reference=ref1
swift_store_config_file=/etc/glance/glance-swift-creds.conf
swift_store_container = glance
swift_store_create_container_on_put = True
In the file referenced in ``swift_store_config_file`` option, add the
following::
[ref1]
user = <service project>:<service user name>
key = <service user password>
user_domain_id = default
project_domain_id = default
auth_version = 3
auth_address = http://keystone.example.com/identity
Values for user and key options correspond to keystone credentials for
RADOS Gateway service user.
Note: RADOS Gateway uses FastCGI protocol for interacting with HTTP server.
Read your HTTP server documentation if you want to enable HTTPS support.
#. Restart Glance API service and upload all needed images.
#. If you're using custom container name in RADOS, change Ironic configuration
file on the conductor host(s) as follows::
[glance]
swift_container = glance
#. Restart Ironic conductor service(s).
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