Index ¦ Archives ¦ Atom > Tag: ceph ¦ Atom

Understanding ceph-ansible in TripleO

One of the goals for the TripleO Pike release was to introduce ceph-ansible as an alternative to puppet-ceph for the deployment of Ceph.

More specifically, to put operators in control of the playbook execution as if they were launching ceph-ansible from the commandline, except it would be Heat starting ceph-ansible at the right time during the overcloud deployment.

This demanded for some changes in different tools used by TripleO and went through a pretty long …

TripleO to deploy Ceph standlone

Here is a nice Christmas present: you can use TripleO for a standalone Ceph deployment, with just a few lines of YAML. Assuming you have an undercloud ready for a new overcloud, create an environment file like the following:

  OS::TripleO::Services::CephMon: /usr/share/openstack-tripleo-heat-templates/puppet/services/ceph-mon.yaml
  OS::TripleO::Services::CephOSD: /usr/share/openstack-tripleo-heat-templates/puppet/services/ceph-osd.yaml

    - OS::TripleO::Services::CephMon
    - OS::TripleO::Services::CephOSD

and launch …

Ceph, TripleO and the Newton release

Time to roll up some notes on the status of Ceph in TripleO. The majority of these functionalities were available in the Mitaka release too but the examples work with code from the Newton release so they might not apply identical to Mitaka.

The TripleO default configuration

No default is going to fit everybody, but we want to know what the default is to improve from there. So let's try and see:

uc$ openstack overcloud …

Ceph for Cinder in TripleO

A wrap up on the status of TripleO's Cinder HA spec. First, a link to the cinder-ha blueprint, where you can find even more links, to the actual spec (under review) and the code changes (again, still under review). Intent of the blueprint is for the TripleO deployments to keep Cinder volumes available and Cinder operational in case of failures of any node.

This said, should $subject sound interesting to you, beware the code still …

© Giulio Fidente. Built using Pelican. Theme by Giulio Fidente on github. Member of the Internet Defense League.