Ales Nosek - The Software Practitioner

Recently, we had several virtual machines hosted on OpenShift Virtualization experiencing Windows Blue Screen of Death (BSOD).

The OpenShiftSDN CNI (Container Network Interface) plug-in has been deprecated since OpenShift Container Platform 4.14 and was removed in version 4.17.

This year’s Red Hat Summit is going to be hosted in Denver on May 6-9, 2024.

This year’s Red Hat Summit is going to be hosted in Boston on May 23-25, 2023.

This year’s Red Hat Summit is going to be hosted in Boston on May 10-11, 2022.

Hey what’s up everybody?

Are you considering Red Hat CodeReady Containers (CRC) for your local OpenShift development?

This blog covers a proof of concept, which shows how to monitor Apache Airflow using Prometheus and Grafana.

Over the course of this year, I have been working with several development teams that started building applications on OpenShift.

This blog will walk you through the Apache Airflow architecture on OpenShift.

This year’s Red Hat Summit is not over yet!

This blog will cover how to create a CI/CD pipeline that spans multiple OpenShift clusters.

In this blog post, I am going to show you how to use Tilt to facilitate local OpenShift development.

Recently, I have been working on the openshift-auto-upi project, which automates UPI deployments of OpenShift.

In the previous entry to this series, we discussed developing policies with Open Policy Agent.

In the previous part of the series, we explored Open Policy Agent and implemented an ACL-based access control for our application.

Recently I was looking for a way to implement access control for microservices.

The Cloud Native Virtual Event, presented by Red Hat, is coming up on October 10th, 2019.

Pods on Kubernetes are ephemeral and can be created and destroyed at any time.

In the previous entry to this series, we reviewed several techniques that help you to prevent event loop delays.

In the previous part of the series, we took a closer look at the event loop model.

In this blog post, I am going to talk about how I installed OpenShift 4.1 on a Fedora laptop with 16 GB of RAM.

This article is the first in a series of three articles which share my experience with troubleshooting the performance of Vert.x applications.

This year’s Red Hat Summit is going to be hosted in Boston on May 7-9, 2019.

In this article I am going to show you how to attach a debugger and a VisualVM profiler to the Java application running on OpenShift.

Are you still coding your API client libraries by hand?

Recently I passed the Red Hat Certified Specialist in Gluster Storage Administration exam.

On September 21, 2018 I spoke at the Red Hat Training Partner & Instructor Conference in Prague, Czech Republic.

Over the course of the last year I was working towards transitioning our company’s products to the AWS cloud.

Ansible is a popular IT automation tool.

Last week, I had the pleasure of attending Red Hat Summit 2018.

Code reuse belongs to the basic tenets of software development.

Amazon Linux 2 runs on OpenStack perfectly fine.

In the previous post, we discussed our experience with the deployment of OpenStack.

It has been 18 months since we deployed OpenStack cloud in our company.

In this article, we’re going to create a proof-of-concept deployment featuring a non-TLS client connecting to our cloud application.

When designing a cloud application, one of the challenges you need to tackle is the secure communication of your clients with your servers over the public Internet.

KubeCon + CloudNativeCon North America 2017 took place in Austin, Texas on December 6-8, 2017.

Vert.x is an awesome tool-kit for developing reactive microservices.

In our SOA-based application, the problem of application metrics hasn’t been solved yet.

Last week I passed the Red Hat certification exam EX407 Red Hat Certificate of Expertise in Ansible Automation.

Did you decide to dockerize your application?

Are you migrating your existing application to the cloud?

Roughly a year ago, my boss offered to me a Red Hat Learning Subscription.

Recently I passed two Red Hat certification exams: EX270 Red Hat Certificate of Expertise in Atomic Host Container Administration and the EX276 Red Hat Certificate of Expertise in Containerized Application Development.

In the previous blog post, we were checking out the basic functionality of the key-value store in Consul.

If you are developing a distributed application that consists of multiple services, you might be thinking about how to manage the ever growing application configuration data.

Recently I passed two OpenStack certification exams from Red Hat: EX210 Red Hat Certified System Administrator in Red Hat OpenStack exam and the consecutive EX310 Red Hat Certified Engineer in Red Hat OpenStack exam.

I had the great opportunity to visit the Red Hat Summit 2017.

Wow, the time goes by so fast.