Ales Nosek - The Software Practitioner

It’s been more than half a year since I started working with OpenShift.

For years a Jenkins server has been driving the software builds in our company.

There are several ways how to expose your application running on the Kubernetes cluster to the outside world.

TripleO is an OpenStack deployment and management tool we’ve been using on the production systems for a while now.

Do you work on a development team that is distributed across several time zones?

Is your application delivered as a set of services running on top of Linux?

Today was the great day when I passed the RHCE certification exam.

When preparing for the RHCSA and RHCE exams, I found several useful commands I was not really aware of.

At Red Hat summit I learned about the new project ansible-container.

Red Hat is one of the most successful software companies that makes billions of dollars selling open source software.

I had the great opportunity to visit the Red Hat Summit 2016.

Update 6/19/2018: The openstack-heat kube-up provider used in this tutorial was removed in Kubernetes version 1.10.

Do you need to provision an NFS share for your Hadoop cluster?

TripleO is an OpenStack deployment and management tool I’ve been using since the Kilo release of OpenStack.

The MariaDB Galera packages provided by the RDO project in their OpenStack repositories don’t seem to include a command or script to bootstrap the cluster.

If you don’t monitor it, it’s not in production!

RDO Manager defines multiple roles that nodes can play in OpenStack deployment.

The OpenStack Liberty was released last week.

Os-net-config is a simple tool to configure networking of Linux hosts.

In this article, we’re going to make an entire VLAN trunk on the host accessible to the guest machine.

Reposync can mirror the yum repository to which your machine is subscribed to.

Update 3/31/2016: The implementation of the ini_file module described in this blogpost has been merged into Ansible version 2.0.

Do you like Docker technology and want to learn more about it?

After upgrading to Debian Jessie, my Windows application running under Wine stopped working.

Is your technical documentation hard to read?

Let’s review some basic means that Doxygen provides to structure your documentation.

Do you create project documentation in your company’s internal wiki?

It’s a pleasure to read and maintain your code, right?

Today’s user story is: As a private cloud user I’d like to have virtual machines registered with internal DNS.

OpenStack components generate notifications that can provide useful insight into what is going on in OpenStack.

Where do you look when your server application doesn’t work as expected?

The Simple Logging Facade for Java (SLF4J) serves as a simple abstraction for various logging frameworks.

In this blogpost we’re going to configure the BIND server to accept dynamic updates.

In EC2 and OpenStack cloud environments user data can be passed to the cloud instance to customize the cloud instance on the first boot.

Do you care about how your Git commits look like?