December 2016 – tuxfixer.com

Create tenant in OpenStack Newton using command line interface

December 28, 2016March 3, 2017 No Comments

OpenStack comes out of the box with it’s dashboard called Horizon. Horizon provides GUI, which let us manage our OpenStack environment in pretty easy and inuitive way. However basic tasks, like tenant creation or instance commissioning, can be time consuming […]

Install OpenStack Newton All In One with Heat Service on CentOS 7

December 11, 2016December 23, 2016 10 Comments

In OpenStack all-in-one configuration all OpenStack nodes (controller node, compute node, network node) are installed on a single machine. All in one configuration can be quickly deployed for testing purposes and is often recommended for developers to test their applications […]

Install Ansible on Fedora via DNF from RPM packages

December 10, 2016December 11, 2016 No Comments

Ansible is a simple open-source automation tool that can automate cloud deployment, application deployment or Linux OS maintenance. Comparing Ansible to other automation tools (i.e. Puppet), it’s the simplest tool, because it’s agentless. Ansible once installed on a control node, […]

GRUB 2 Custom Splash Screen on RHEL 7 UEFI and Legacy ISO Image

December 4, 2016October 11, 2018 No Comments

GRUB2 Linux Boot Loader provides few customization options, that can transform it into an attention drawing eye candy. It’s main feature is the possibility to customize the splash screen being displayed with GRUB 2 menu entries upon system boot. This […]