There’s a couple of different methods to fully bootstrap a Kubernetes cluster using Cluster-API (CAPI). One is to use the newly defined ClusterResourceSet, which enables you to define a configmap on the management cluster, this is then applied to the tenant cluster as a resource. It’s a very effective method, the two blogs I’ve seen on this recently are Sam Perrin’s blog for the CAPV provider (vSphere) and Scott Lowe’s blog for the CAPA provider (AWS).
This is quick post to summarise using Velero to backup your stateful workloads running on Kubernetes without the use of cloud provider plugin to snapshot the persistent volumes. The current setup I’ve got a Tanzu Kubernetes Grid cluster provisioned with the Guestbook application installed into a namespace called (imaginatively) guestbook. I’ve also added some random comments to the guestbook so we have some data to backup from the persistent volume.
This is a quick post about something I was asked about recently for a customer - Secrets within Kubernetes. The ask from the customer was: Our engineer says that standard Kubernetes secrets aren’t secure, what are our options? This is an overview of those options. I won’t be going into too much depth as there is no right or wrong answer here, it depends on the requirements of each individual organisation.
This is the fifth in a series of blog posts that will explain the different components of Kubernetes. Primarily because if I can explain it here, I’ll have learned it quite well myself. The first part is about Pods and can be found here. The second part is about Controllers and can be found here. The third part is about Services and can be found here. The fourth part is about Volumes and can be found here.
This is the fourth in a series of blog posts that will explain the different components of Kubernetes. Primarily because if I can explain it here, I’ll have learned it quite well myself. The first part is about Pods and can be found here. The second part is about Controllers and can be found here. The third part is about Services and can be found here. Where does the data go?
This is the third in a series of blog posts that will explain the different components of Kubernetes. Primarily because if I can explain it here, I’ll have learned it quite well myself. The first part is about Pods and can be found here. The second part is about Controllers and can be found here. What is a Service? So you’ve deployed a pod, now how do you access it? How do other pods access it?
This is the second in a series of blog posts that will explain the different components of Kubernetes. Primarily because if I can explain it here, I’ll have learned it quite well myself. The first part is about Pods and can be found here. Why Controllers Before we answer the why, we ought to think about what a controller is. The atomic unit in Kubernetes is the pod. You can create and manage them manually.
On Wednesday 29th January I took my Certified Kubernetes Administrator exam, and after much baited breath (31 hours worth), I passed. This briefly covers my experience and the resources I used to get there. Lead Up In the weeks leading up to the exam I was becoming fairly proficient with Kubernetes but felt I needed a target to get to the required standard. So I booked my exam, on the basis that
This is the start of a series of blog posts that will explain the different components of Kubernetes. Primarily because if I can explain it here, I’ll have learned it quite well myself. Primer on Containers I think most people are at least aware of the existence of containers. Fundamentally they’re a construct used to make an application component self contained & portable. It holds all the libraries and binaries required to run the component.