Compare command outputs with process substitution

Every sysadmin knows the situation, if he has to compare the output of some commands. Most of us save the output of the commands in a temporary file, compares these files with the diff binary and afterwards delete the temporary files. In this blog post I’ll show you the usage of process substitution to get the differences of commands […]

Ansible Tower offline installation on a Red Hat system

A few days ago Ansible released a new version of their enterprise product Ansible Tower. It’s a web interface on top of the ansible core and offers a lot of useful features. In the release notes is a new topic listed that is an important requirement for some customers of us, bundled installation support. It’s now possible […]

Calling Ansible handlers based on OS distributions

Sometimes you’ve got an Ansible task that should notify another task after a change. In Ansible this is called a handler and a description can be found here. Mostly the handler can be defined OS-independent. In this blog post, we show you, how to use a list of handlers for different OS distributions.

Deploying SSL private keys with Ansible

When you’re using Ansible or any other configuration management tool, you might come in contact with deploying SSL certificates sooner or later. While deploying public SSL certificates isn’t a security issue at all, the deployment of private keys become more critical – at least if you want to deploy them securely.

Simple file comparison with aide

It’s sometimes useful to know, what’s happening on your server, if you install a new package or run a update. There are many solutions for this case, but a simple one is to use aide, which is available on the most linux distributions.

SublimeText: The editor you fall in love with

SublimeText is a text editor, though it’s far beyond a normal text editor. The developers describe it as: Sublime Text is a sophisticated text editor for code, markup and prose. You’ll love the slick user interface, extraordinary features and amazing performance. There you go, that’s what it is and I’m sure you agree to the extraordinary features […]

confirm meets Ansible – London Trip

Last week, we were on a business trip in London. The main reason was to meet up with Mark Phillips. You might know him from Ansible Inc. or his blog Probably, where he’s writing all that stuff about Ansible, devops and other interesting topics. We are excited and really looking forward to team up with the nice guys of Ansible and […]

Setup Ansible Tower 2.2 via Proxy

The Ansible Tower is a really nice piece of visual “control center” for your Ansible installation. Ansible itself describes it as: Centralize and control your Ansible infrastructure with a visual dashboard, role-based access control, job scheduling, and graphical inventory management. Tower’s REST API and CLI make it easy to embed Tower into existing tools and processes. Delegate […]