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. Instead of maintaining individual configuration files for each service, you can store all your configuration data in a key-value store. In this blog post we’ll check out the key-value store in Consul.
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. In this blog post, I’m going to share how I - as a software practitioner - got the job done.
I had the great opportunity to visit the Red Hat Summit 2017. It was hosted in the Boston Convention and Exhibition Center in Boston in May 2-4, 2017. This blog post summarizes the interesting things I learned at the summit.
Wow, the time goes by so fast. It’s been two years since I began writing this blog. Why did I start and am I having fun? Let’s take a closer look.
It’s been more than half a year since I started working with OpenShift. Today I successfully passed the EX280 Red Hat Certificate of Expertise in Platform-as-a-Service exam and earned a certificate. I’m going to share a few details about the exam in this blog post.
For years a Jenkins server has been driving the software builds in our company. Some time ago, we deployed an OpenShift cluster. The primary purpose of our OpenShift cluster was to support the efforts of dockerizing our software products. However, as OpeShift is a complete PaaS solution we started thinking about leveraging OpenShift for software builds, too. In this blog post I’d like to share what we learned about building on OpenShift so far.
There are several ways how to expose your application running on the Kubernetes cluster to the outside world. When reading the Kubernetes documentation I had a hard time ordering the different approaches in my head. I created this blog post for my future reference but will be happy if it can be of any use to you. Without further ado let’s discuss the hostNetwork, hostPort, NodePort, LoadBalancer and Ingress features of Kubernetes.
TripleO is an OpenStack deployment and management tool we’ve been using on the production systems for a while now. As TripleO is an upstream project for the Red Hat OpenStack Platform Director one would expect a decently working tool able to manage large-scale OpenStack deployments. What is our experience with TripleO?
Do you work on a development team that is distributed across several time zones? Got confused by the dates that Git shows in the commit logs? In this blog post we’re going to review some basics about how Git deals with time.
Is your application delivered as a set of services running on top of Linux? Did you think about writing a custom controller service that would start your application services in the correct order and monitor their health? Please, stop thinking about it! In this blog post I would like to convince you that you can leverage the existing systemd service manager to control your application services to your greatest benefit.