kubebuilder:printcolumn - Adding back the AGE column

1 min read

If we use //+kubebuilder:printcolumn to add fields to print with kubectl get we'll notice that the AGE colum goes away with it. We can use an additional //+kubebuilder:printcolumn to add the AGE column back.

29/08/2023

Operator-SDK: Create a group of objects that can be queried together

2 min read

When you have several kubernetes objects (CRDs) that work together it can be useful to be able to query them all together to get a better idea of what's deployed without having to query all the individial resources. With operator-SDK we just need to annotate the objects.

01/08/2023

Simplifying Input Parameters in Pulumi and AWS CDK Libraries

2 min read

Some libraries require you to use string pointers or custom objects for some input parameters, notable examples are Pulumi and AWS CDK. If we only need to provide some static value for it can be annoying to use.

16/05/2023

Operator-SDK: Set custom fields for kubectl get

2 min read

When writing a custom Kubernetes operator using operator-sdk we might want to change the fields are show when running kubectl get:

$ kubectl get example
NAME   AGE
demo   4h20m

To do so, we'll need to add the additionalPrinterColumns field the the CustomResourceDefinition, but since we are using operator-sdk to take care of this, we'll need to use some annotations in the resource definition file.

15/05/2023

Deploying Cloud Resources with Pulumi and LocalStack

2 min read

Pulumi is a powerful infrastructure as code tool that allows developers to deploy and manage cloud resources using familiar programming languages. However, when it comes to using Pulumi with LocalStack, there are some changes that need to be made to make Pulumi be able to reach LocalStack.

25/04/2023