version

Kubernetes: major version upgrade of Anthos GKE on-prem from 1.9 to 1.10

Anthos GKE on-prem is a managed platform that brings GKE clusters to on-premise datacenters. In this article, I will be following the steps required to upgrade from 1.9 to 1.10 on VMware. The instructions provided here are assuming you have used the Ansible scripts and Seed VM described in my previous Anthos 1.9 installation article.

Kubernetes: major version upgrade of Anthos GKE on-prem from 1.8 to 1.9

Anthos GKE on-prem is a managed platform that brings GKE clusters to on-premise datacenters.  In this article, I will be following the steps required to upgrade from 1.8 to 1.9 on VMware. The instructions provided here are assuming you have used the Ansible scripts and Seed VM described in my previous Anthos 1.8 installation article.

Kubernetes: detecting the installed version of nginx ingress

If you need to determine the version of the nginx ingress controller deployed, then you can invoke the ingress controller binary with the ‘–version’ flag. But this binary is located in the ingress-nginx-controller pod, so do a ‘kubectl exec’ like below. # namespace of your nginx ingress ingress_ns=”default” # find running pod podname=$(kubectl get pods Kubernetes: detecting the installed version of nginx ingress

CloudFoundry: The lifecycle of a simple BOSH release

BOSH is a project that unifies release, deployment, and lifecycle management of cloud based software. Software to be deployed via BOSH is called a release, and in this article I will use a very simple release to illustrate how to create, deploy, version, and revert these releases.

Java: Determining the Java version used to compile a class, ‘class file has the wrong version’

If a Java class file is compiled with a higher supported version than is currently being run, you will get the ‘bad class file’, ‘class file has the wrong version XX.0, should be XX.0’ error message. For example, if the .class file was compiled as a Java 1.8 class file on a Jenkins continuous integration Java: Determining the Java version used to compile a class, ‘class file has the wrong version’