After just deploying the newest version of Pivotal Container Services (PKS) and rolling out my first Kubernetes cluster (read all about it here), I wanted to try to do something a bit more interesting than just create another persistent volume claim to test out our vSphere Cloud Provider since I had done this a number of times already. Thanks to some of the work I have been doing with our cloud native team, I was introduced to StatefulSets. That peaked my interest a little, as I had not come across them before.
It is almost 6 months since I last rolled out a deployment of Pivotal Container Service (PKS). I just did a new deployment this week using some of the more later builds of Pivotal Operations Manager (v2.3), and PKS (v1.2.2) and noticed a number of changes. This post is to take you through those changes and highlight where things are different and might catch you out. I am not going to go through all of the requirements from scratch – there are a number of posts already available which explain the command line tools that you need, and so on.…
A First Class Disk (FCD), also referred to as Improved Virtual Disk (IVDs), is one of the more recent features in vSphere that may have escaped your notice. FCDs were created to address a particular gap that we have in vSphere at this time. We are well aware that within a vSphere environment, it is currently very difficult to manage virtual disks unless they are associated with a virtual machine. A simple example would be snapshots. Snapshots work at a per VM basis, and to only snapshot a single VMDK rather than all VMDK attached to a VM involves a…
Yes, it’s that time of year again. VMworld 2018 in Las Vegas is taking place next month. Once again, as per previous years, I will be co-presenting on a few sessions. It will be no surprise that, once again, my sessions are focused on storage, hyper-convergence and predominantly vSAN. However, this year I will also be presenting with my CTO and VMware Fellow, Christos Karamanolis, for the very first time. Without further ado, let me go through my sessions in a bit more details, and if they look interesting to you, feel free to sign up. I also included a…
As I am going to be doing some talks around next-gen applications at this year’s VMworld event, I took the opportunity to revisit Pivotal Container Services (PKS) to take a closer look at how we can set persistent volumes on container based applications. Not only that, but I also wanted to leverage the vSphere Cloud Provider feature which is part of our Project Hatchway initiative. I’ve written about Project Hatchway a few times now, but in a nutshell this allows us to create persistent container volumes on vSphere storage, and at the same time set a storage policy on the…
If you’ve been following along my recent blog posts, you’ll have seen that I have been spending some time ramping up on NSX-T and Pivotal Container Services (PKS). My long term goal was to see how these two products integrate together and to figure out the various moving parts. As I was very unfamiliar with both products, I took a piece-meal approach to both. First, I tried to get some familiarity with NSX-T. You can find my previous posts on NSX-T here: Building a simple ESXi host overlay network with NSX-T First steps with NSX-T Edge – DHCP Server Next…
This week I attended KubeCon and CloudNativeCon 2018 in Copenhagen. I had two primary goals during this visit: (a) find out what was happening with storage in the world of Kubernetes (K8s), and (b) look at how people were doing day 2 operations, monitoring, logging, etc, as well as the challenges one might encounter running K8s in production. Let’s start with what is happening in storage. The first storage related session I went to was on Rook. This was a presentation by Jared Watts. According to Jared, the issues that Rook is trying to solve are to avoid vendor lock-in…