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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Ceph ansible now supports dmcrypt

Ceph ansible now supports dmcrypt

I recently worked on a new feature that ceph-ansible was laking of: support for dmcrypt. This dmcrypt scenario basically allows you to deploy encrypted OSD data directories. The encrypted key is stored on the monitor’s key/value store. Until recently ceph-ansible wasn’t capable of deploying such configuration. Let’s see how this can be configured.

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Introducing ceph-lazy

Ceph Lazy

This article is co-authored with Gregory Charot (author of the tool). Have you ever found yourself doing long series of pipes to get a particular value that is not directly provided by a Ceph CLI command or just trying to remove surrounding text to get a particular value? This situation often results in quick & dirty sed/awk pipelines ending (best case scenario) as alias or forgotten in your shell history until next time you need it. Here comes ceph-lazy, a shell toolkit that combines some of these queries that require multiple processing or text manipulation.

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Ceph zap device container

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Some use cases might require to zap a device (destroy partition tables) prior to run your Ceph OSD container with a dedicated disk. While running development environment this is particularly interesting as this allows us to quickly bootstrap and tear down sandboxes.

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