Category Archives: centos

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 cobbler server on CentOS 7

Yes I know, I’m a little bit dense on the last days about the docker thing. But what can I say: this blog is also my notebook/slash/lab book and I want to write here about how I did this or … Continue reading

Posted in bits, centos, cobbler, containers, docker, hardware, osx, programming, software | 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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ssh to docker ‘Permission denied’

I want to ssh to my docker. I know, it’s weird, but I want to. The traditional way to get a bash on my docker docker exec -it mydocker /bin/bash is working, but it’s not the real thing.  I access … Continue reading

Posted in bits, centos, containers, docker, software, rsync, munin | Leave a comment

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 docker macvlan on CentOS 7

I want to dockerize my services (not only leginon) so I need to find out an effective way to integrate them onto our intranet. That is proven to be a little bit complex, since I have partial control of our … Continue reading

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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