One key way to release the Kubernetes Operator to publish it on OperatorHub.io. To publish the operator on OperatorHub.io, you need to generate the bundle artifacts for your operator. If you develop your Kubernetes Operator with the Operator SDK, you can follow the instruction here to achieve your goal. However…

The Kubernetes Operator offers custom resources for users to configure their applications or services. The custom resource is the only source of truth to configure the operand. However, the operand the operator manages, can be complex enough, so that the custom resource itself can become relatively complex as well, in…

The artifacts released by Knative serving and eventing consist of many Kubernetes resources, meaning there are combination many enough to configure Knative. The custom resources of Knative Operator enable different fields for configuration, but it is almost impossible for them to enable all the possible options. What if you want…

If you build your Kubernetes Operator with the Operator SDK, you do not need to worry about all the processes, from scaffolding your source code and manifests, to building and publishing your images and artifacts. However, if your operator is not written or generated by the Operator SDK at the…

I give 100% credit to my friend and colleague Andrea Frittoli for sharing his experiences on Tekton with me. Without his guidance, I wouldn’t be able to write this tutorial. I was preparing a demo of Tekton Operator for the session Tekton's Hassle-free Journey with Tekton Operator at the in…

After reading the instructions on how to create the conversion webhook and the validating webhook, there is no way for the mutating webhook to escape. The custom resource is the source of truth to configure the operand for the Kubernetes operator. Once we have got the content of the CR…

Kubernetes provides admission controllers for users to leverage the security capabilities. Kubernetes admission controllers are plugins that govern and enforce how the cluster is used. They are gatekeepers that intercept (authenticated) API requests and may change the request object or deny the request altogether. …

You must have searched online a lot of other materials to learn how to create the webhooks with operator-sdk before reading this article. It is lucky for you to find this one, because this article will guarantee you an error-free process, and you don’t even need to look for more. …

Continued with the previous episode, it is exciting start to install Knative with Knative operators, but it is more fun to configure Knative with the only source of truth: custom resources. We will dig into each Knative operand one-by-one. Configure Knative Serving with Serving Operator: You are able to configure Knative Serving with the following options: …