Tip: lock an instance against admin permissions
Couple of days ago I was looking for a way to lock an instance but something more powerful than a simple lock via the nova API.
Couple of days ago I was looking for a way to lock an instance but something more powerful than a simple lock via the nova API.
Folsom brought a lot of new features, however while playing with nova-manage
, I came across a new option, option that I found very useful and that I’m about to share with you.
I would like to share with you readers some of the optimizations I made on the SSDs storing my Ceph Journals. This article has been placed into the ceph categorie, but it’s more general best practices SSDs.
Usually, you don’t always want to restart your daemon everytime you change your configuration. Fortunatly, Ceph supports parameter injection!
Quick overview about placement groups within Ceph.
Little update of my previous script for Folsom.
It’s been a while that I heard that mkcephfs
was deprecated, but for the benefit of which tool? I have named ceph-deploy
. The project is young and it’s work in progress but at a reasonnable advancement. Let’s get a first impression!
Folsom has been released, it’s probably time for some of you to deploy OpenStack. This is a follow up to the article titled From nova-network to Quantum. One of the main question with Folsom is: which Quantum plugin should I use? The answer could be in this article! Another article co-written with Emilien Macchi. Deep dive into the available plugins in Quantum for OpenStack Folsom.
Before starting anything I’d like highlight the fact that this article was co-written with Emilien Macchi, who has a better expertise on Quantum that I do. In this article, we focused on both aspects of nova-network
and quantum
. We did not want to compare the two or similarly make them take each other head-on. This article is just a step back about the state of the networking in OpenStack. Basically what did we lose and what did we gain?
Inktank’s guys are awesome!