[lxc-users] System task automation and System update

[Benoit GEORGELIN - Association Web4all]

Bonjour :) 

I'm looking for a feedback about people using LXC technology containers and automation tools for system task and system update. 
With the ability of having hundred of containers running at the same time, I was wondering how you manage your infrastructure. 

Let's say we talk about 50 and more containers, all running LXC with on LXD and to be as simple as possible , same host. 
How do you manage system update across those containers ? 
How do you manage system security updates ? 

I'm still trying to find a smart way to keep every single system up to date from a system point of view. Let's put the application on the side for now. 

Would it be possible to have one master container where every system updates , including security updates can be done and a simple stop/start to the others 49 containers will make them up to date too ? 
Using storage technology or anything related to lxc or this seems not possible to you ? :) 

I know a lot of automation tool like Puppet , CFengine, Salt, Ansible, Chef. etc.. 
You can update the system, install security updates , but at the end, they all do unit deployment . 

I would have imagine a system where you can have a central image . Like docker works with layers ^^ 

Thanks for sharing your inputs and experiences about this ! 

Cordialement, 

Benoît 
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