Category Archives: linux

A simple ftp server on CentOS 7

I need an ftp for my foreman installation. I’ve been looking for a container solution to do it but I didn’t find the good one. Let’s go ahead. I will install it on myftp, with IP: 1.2.3.4. Yes, I used … Continue reading

Posted in bits, docker, ftp, hardware, linux, puppet, software, yum | Leave a comment

Add a puppet node to a foreman docker

There should be no difference between adding a node on a foreman server and on a foreman docker. But the world is not ideal, and things don’t work out of the box, therefore, here’s my HOWTO. The original source is … Continue reading

Posted in bits, centos, cobbler, containers, docker, foreman, hardware, linux, mac, programming, puppet, Uncategorized | Leave a comment

A docker munin server on CentOS 7

The plan is to get rid of the old pizza box servers (around 20 Kg, 1U flat, with two power supplies) that are used, at this moment, only for services, like to run munin. I will build a munin docker … Continue reading

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A leginon docker on CentOS 7 Part II: centos7AutoInstallation.py

On the previous post, we prepared a basic LAMP docker to hold a leginon installation.  I assume now you downloaded the installer for CentOS 7 and copied it to the docker via ssh or shared folder. We can simply run … Continue reading

Posted in bits, centos, linux, containers, docker, yum, leginon, EM, mysql, filesystems, modules | 1 Comment

A leginon docker on CentOS 7 Part I: docker and database server install

Previously we we made a leginon CentOS 6 container on CentOS 7. Now the LXC containers are somehow more robust than a docker, but less popular and versatile. Therefore the need to make a docker instead. I start by cloning … Continue reading

Posted in bash, centos, containers, docker, EM, leginon, linux, python, yum | 2 Comments

Virtual Machines on CentOS 7

I’m getting more and more frustrated with lxc containers and dockers so I decided to have a look to the past. Instead of making a docker for my web tools and supercharge its services, I will try to create a … Continue reading

Posted in bits, centos, containers, docker, hardware, linux, Uncategorized, VM | Leave a comment

[WARNING] Service returned no data for label gpu use error on munin node

If you have several Linux clients and no way to monitoring what’s going on munin is your friend. I have a couple of non-standard munin plugins that I’ve been scraping around so I was feeling brave enough to write a … Continue reading

Posted in bash, bits, GPU, linux, munin, slurm, software | Leave a comment