Configure OpenStack Glance for RBD mirroring

Configure OpenStack Glance for RBD mirroring

Since Ceph Jewel, we have the RBD mirroring functionality and people have been starting using it for multi-site and disaster recovery use cases. The tool is not perfect but is rock solid, expect many enhancements in the future release such as support for multiple peer and daemons. From a pure OpenStack perspective, to enable this feature we don’t really want to add any code into Glance Store. The reason is simple, glance’s store code looks up for specific Ceph features into the Ceph configuration file itself. So there is no point of adding a new configuration flag into Glance that says something like enable_image_journaling. The operator will only have to configure Ceph, that’s it.

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Devstack Ceph supports containerized Ceph

Devstack Ceph supports containerized Ceph

Yes people, I’m still alive :). As you might noticed, I’ve been having a hard time to keep up the pace with blogging. It’s mainly due to me traveling a lot these days and preparing conferences. It’s a really busy end of the year for me :).

Fortunately, I’m still finding the time to work on some new features to projects I like. As you might know, I’ve been busy working on ceph-ansible and ceph-docker, trying conciliate both and making sure they work well together. In ceph-docker, we have an interesting container image, that I already presented here. I was recently thinking we could use it to simplify the Ceph bootstrapping process in DevStack. The patch I recently merge doesn’t get ride of the “old” way to bootstrap, the path is just a new addition, a new deployment method.

In practice, this doesn’t change anything for me, but at some point it allows us to validate that a containerized Ceph doesn’t have any problem and bring the same functionality as a non-containerized Ceph. Without further ado, let’s jump into this!

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OpenStack Storage for Dummies book

Title

With the help of two colleagues, I’ve been busy writing this little book about storage in OpenStack. The book is quite general but gives some good perspectives on storage challenges you will face in OpenStack. It explains why traditional storage solutions will not work and how Ceph addresses these issues. Ultimately describing why Ceph is the best solution for your OpenStack cloud.

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OpenStack Nova snapshots on Ceph RBD

I have been waiting for this feature for more than a year and it is almost there! This likely brings us one step toward diskless compute nodes. This “under the hood” article will explain the mechanisms in place to perform fast and efficient Nova instance snapshots directly in Ceph.

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Ceph at the OpenStack Summit Tokyo 2015

With this article, I would like to take the opportunity to thank you all for voting for our presentation. It is always with a great pleasure that we will give you the last updates of Ceph developments happening in OpenStack.

Ceph talks coverage at the next OpenStack summit:

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OpenStack Summit Tokyo: time to vote

Yet again and for the second time this year, it is time to vote for summit presentations :). Self promotion ahead :).

As always, Josh and I will present the newest addition of Liberty for Ceph in OpenStack. I don’t want to spoil to much but what I can tell you is this cycle is doing well and most of the wanted features would likely land in Liberty. So if you want to see all the amazing things that happened during this cycle:

This presentation will be a follow up on Dude where’s my volume? talk from Vancouver.


Thanks in advance for your votes and support :).

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