Megan A. Irvine

I recently ran into a mysterious problem as I was developing and testing a lab exercise to teach about Kubernetes resiliency. I sort of caused the problem myself, because I had run through several scenarios with the example application, and I wanted to blow it all away and start over...so I just started deleting things. That, my friends, is a sure-fire way to break something. If you are dealing with Deployments and ReplicaSets, merely deleting a pod is just going to cause K8s to try and redeploy it. I ended up with a handful of pods that were stuck in a state of "Terminating," and they would not die. For days. So, I asked around, tried researching the problem. A google search of "pods stuck in terminating" gave many hits, with many different possible causes and solutions. Some issues mentioned kubelet and a hostname mismatch - that was not it.  I tried doing a drain, cordon, and shutdown of the node. When I started it back up, the pods were still there, stil...

You can now earn a badge for completing each course in the IBM Microservices Specialization on Coursera.org. More information on each badge is here: Microservices Fundamentals Developing and Deploying Microservices with Microclimate Deploying Microservices with Kubernetes IBM Cloud Private: Deploying Microservices with Kubernetes

The  IBM Microservices Specialization just launched on Coursera! This series of self-paced online courses takes you through microservices fundamentals, microservices application development, and deployment of microservices to IBM Cloud and IBM Cloud private. In this course, you get hands-on experience with: Docker and containerized applications Kubernetes - a container orchestrator Helm - the Kubernetes package manager Microclimate - an end-to-end development environment for microservices Jenkins, and other tools used for DevOps IBM Cloud (formerly known as Bluemix), and  IBM Cloud Private - an application platform for developing and managing on-premises, containerized applications.  You can audit this series at no charge, or enroll for a nominal fee and earn a completion certificate. 

I recently developed and launched a new course on Coursera.org - IBM Cloud: Deploying Microservices with Kubernetes About this course: In this course, you learn how to install the Kubernetes command-line interface (CLI), and create a Kubernetes cluster on which to run applications. Hands-on tutorials show you how to deploy microservices to a Kubernetes cluster. You also learn about securing and managing a Kubernetes cluster, and how to plan your Kubernetes cluster for deployment on IBM Cloud. You can audit this course at no charge, or pay a nominal fee to receive the badge/certificate after completing it. This course is part of a specialization on Microservices. If you complete all courses in the specialization, you get a special badge. Another course in the specialization,  Microservices Fundamentals , also recently launched, and two more courses in the specialization are targeted for release later this year. Coursera is a an education-focused technology company that o...

This article is getting a replay on the IBM Mobile Business Insights blog: http://mobilebusinessinsights.com/2017/07/sowing-the-seeds-for-tomorrows-mobile-developers-in-africa/ A bunch of my articles from that time period have been archived, and are no longer available online, but this one, I think, is worth revisiting. It was one of the most interesting and successful experiences that I had while teaching abroad.

Another fresh post on the IBM Mobile Business Insights blog: http://mobilebusinessinsights.com/2016/06/leading-the-pack-essential-mobile-developer-skills-to-have/

My first article  is published on the new blog for IBM Mobile. Please check it out, and feel free to comment! Thanks.