Archive for August, 2020

Supporting CI/CD with Kubernetes Operators

Thursday, August 20th, 2020

Operators bring a lot of benefits as a way of managing complex software systems in a Kubernetes cluster. In this post, I want to illustrate one in particular: the way that custom resources (and declarative approaches to managing systems in general) enable easy integration with source control and a CI/CD pipeline.

I’ll be using IBM Event Streams as my example here, but the same principles will be true for many Kubernetes Operators, in particular, the open-source Strimzi Kafka Operator that Event Streams is based on.

(more…)

Tags:, , , ,
Posted in code | Comments Closed

Installing IBM Event Streams using the kubectl-operator plugin

Thursday, August 13th, 2020

Installing operators in Red Hat OpenShift from the CLI is much easier with the new kubectl-operator plugin. Here’s an example of how you can use it to install the Event Streams Operator.

Installing operators in OpenShift from the CLI is a little fiddly. It’s possible, but you have to create a bunch of custom resources that aren’t entirely intuitive, like Subscriptions and OperatorGroups.

It’s easy if you’re using the OpenShift Console web UI, as it does this all for you so you don’t need to worry about it. But sometimes you want to do things from the command line. And the new kubectl-operator plugin looks like it’ll make that much simpler.

I had a quick play with it this evening, and it let me get the Event Streams operator running with three commands. (Compare this with the OpenShift Console web UI equivalent in my Event Streams demo video).

(more…)

Tags:,
Posted in ibm | Comments Closed