mirror of
https://github.com/ceph/ceph
synced 2024-12-11 14:09:09 +00:00
55 lines
2.8 KiB
ReStructuredText
55 lines
2.8 KiB
ReStructuredText
=====================================
|
|
Integrating with OpenStack Keystone
|
|
=====================================
|
|
|
|
It is possible to integrate the Ceph Object Gateway with Keystone, the OpenStack
|
|
identity service. This sets up the gateway to accept Keystone as the users
|
|
authority. A user that Keystone authorizes to access the gateway will also be
|
|
automatically created on the Ceph Object Gateway (if didn't exist beforehand). A
|
|
token that Keystone validates will be considered as valid by the gateway.
|
|
|
|
The following configuration options are available for Keystone integration::
|
|
|
|
[client.radosgw.gateway]
|
|
rgw keystone url = {keystone server url:keystone server admin port}
|
|
rgw keystone admin token = {keystone admin token}
|
|
rgw keystone accepted roles = {accepted user roles}
|
|
rgw keystone token cache size = {number of tokens to cache}
|
|
rgw keystone revocation interval = {number of seconds before checking revoked tickets}
|
|
rgw s3 auth use keystone = true
|
|
nss db path = {path to nss db}
|
|
|
|
A Ceph Object Gateway user is mapped into a Keystone ``tenant``. A Keystone user
|
|
has different roles assigned to it on possibly more than a single tenant. When
|
|
the Ceph Object Gateway gets the ticket, it looks at the tenant, and the user
|
|
roles that are assigned to that ticket, and accepts/rejects the request
|
|
according to the ``rgw keystone accepted roles`` configurable.
|
|
|
|
Keystone itself needs to be configured to point to the Ceph Object Gateway as an
|
|
object-storage endpoint::
|
|
|
|
keystone service-create --name swift --type object-store
|
|
keystone endpoint-create --service-id <id> --publicurl http://radosgw.example.com/swift/v1 \
|
|
--internalurl http://radosgw.example.com/swift/v1 --adminurl http://radosgw.example.com/swift/v1
|
|
|
|
|
|
The keystone URL is the Keystone admin RESTful API URL. The admin token is the
|
|
token that is configured internally in Keystone for admin requests.
|
|
|
|
The Ceph Object Gateway will query Keystone periodically for a list of revoked
|
|
tokens. These requests are encoded and signed. Also, Keystone may be configured
|
|
to provide self-signed tokens, which are also encoded and signed. The gateway
|
|
needs to be able to decode and verify these signed messages, and the process
|
|
requires that the gateway be set up appropriately. Currently, the Ceph Object
|
|
Gateway will only be able to perform the procedure if it was compiled with
|
|
``--with-nss``. Configuring the Ceph Object Gateway to work with Keystone also
|
|
requires converting the OpenSSL certificates that Keystone uses for creating the
|
|
requests to the nss db format, for example::
|
|
|
|
mkdir /var/ceph/nss
|
|
|
|
openssl x509 -in /etc/keystone/ssl/certs/ca.pem -pubkey | \
|
|
certutil -d /var/ceph/nss -A -n ca -t "TCu,Cu,Tuw"
|
|
openssl x509 -in /etc/keystone/ssl/certs/signing_cert.pem -pubkey | \
|
|
certutil -A -d /var/ceph/nss -n signing_cert -t "P,P,P"
|