Hi all, For those who are interested, I wanted to give a quick update on the recently-started ceph-mgr work. This is all still very changeable, but now that some code exists I'm putting it out there. Firstly, here it is: https://github.com/jcsp/ceph/tree/wip-ceph-mgr The place I'm starting is with the python embedding. Currently it's running the REST API code that previously lived in Calamari, which you can now see in src/pybind/mgr/ (entry point is rest.py). As previously discussed, the Python interface is pretty minimal: * Python modules expose a serve() method and a notify() method (see rest.py) * Python modules consume methods "get" (for cluster objects like maps), get_server (for the list of servers+services) and send_command (for sending rados commands) The rest.py module is serving the webapp using cherrypy -- this is a handy choice because it just uses plain python threads, which are fairly easy to deal with from the C++ side (gevent has a whole different model that C-land sometimes needs to be aware of, gunicorn uses multiprocessing). I had to update some of the rest api code to work with the latest version of django-rest-framework because Calamari was using an older one. My code is working with the versions of python dependencies that are present in Fedora 22. To play with this: 1. Build your tree with cmake 2. make ceph-mgr 3. CALAMARI_CONFIG=<whereever>/ceph/src/pybind/mgr/calamari.conf PYTHONPATH=env/lib/python2.7/site-packages bin/ceph-mgr -f 4. Point your browser at e.g. http://localhost:8002/api/v2/cluster/osd and witness that you get calamari-like API output Next part is the integration with the mon so that we can run ceph-mgr as an active/standby HA service, and let it store its configuration inside the mon. Once we have that, combined with the embedded python parts, this will turn into a nicely cleaned up pull request for the main ceph tree. Cheers, John -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
