NOTICE: This repo is no longer maintained (transitioned to using Ceph RBD for Glance images). the iRODS backend most recently worked for OpenStack Newton.
- Python-irodsclient
- OpenStack Glance
This procedure is intended for OpenStack Newton release; procedure may differ for other versions of OpenStack.
These steps assume you are installing glance-irods on an OpenStack Glance server (or LXC as would be set up by OpenStack-Ansible).
There's certainly a better way to package this (e.g. as a fork of glance_store), but this will get you going for now.
Activate your Glance's virtual environment and:
pip install git+git://github.com/irods/python-irodsclient.git
If you're working with an OpenStack deployed by OpenStack-Ansible, then try installing with the --isolated switch.
Add or change the following configuration to the appropriate sections of your glance-api.conf; this file is stored in /etc/glance/glance-api.conf for glance-api as packaged by OpenStack-Ansible and Ubuntu Cloud Archive.
[default]
# Replace the following with connection details for your own iRODS deployment
irods_store_host = exampleirodshost.org
irods_store_port = 1247
irods_store_zone = tempZone
irods_store_path = /tempZone/home/openstack_images
irods_store_user = openstack_images
irods_store_password = somepassword
[glance_store]
stores = file, irods # You may have a comma-separated list of multiple back-ends
default_store = irods
The glance_store source code needs some tweaks to support the new iRODS storage backend.
First, find the library path for your glance_store Python package. In an LXC deployed via OpenStack-Ansible, this may be something like /openstack/venvs/glance-14.0.4/lib/python2.7/site-packages/glance_store.
Add irods to the choices tuple in the following block of backend.py in that folder:
cfg.StrOpt('default_store',
default='file',
choices=('file', 'filesystem', 'http', 'https', 'swift',
'swift+http', 'swift+https', 'swift+config', 'rbd',
'sheepdog', 'cinder', 'vsphere', 'irods'),
See example backend.py in this repo.
Copy irods_store.py to the _drivers subfolder of glance_store.
Next to the my-venv/lib/python2.7/site-packages/glance_store folder, you should see a dist-info folder, e.g. /openstack/venvs/glance-14.0.4/lib/python2.7/site-packages/glance_store-0.18.0.dist-info. Find entry_points.txt in this folder and add the following text to the [glance_store.drivers] section:
[glance_store.drivers]
...
glance.store.irods.Store = glance_store._drivers.irods_store:Store
irods = glance_store._drivers.irods_store:Store
See example entry_points.txt in this repo.
systemctl restart glance-api
Feel free to contact the developers:
- Edwin Skidmore (edwin@cyverse.org)
- Amit Juneja (amitj@cyverse.org)
- Chris Martin (cmart@cyverse.org)
It's a standard BSD License. See LICENSE.txt