Introduction In this article we will explore how webhook works in kubernetes and more specifically about the ImagePolicyWebhook, the kubernetes documentation about it is kind of vague, since there is no real example or implementation that you can get out of it, so here we will break it down to the…

Introduction In this article we will explore how authentication and authorization works in kubernetes. But first what’s the difference? Authentication: When you validate your identity against a service or system you are authenticated meaning that the system recognizes you as a valid user. …

Introduction In this article we will explore different alternatives for spinning up a cluster locally for testing, practicing or just developing an application. The source code and/or documentation of the projects that we will be testing are listed here: minikube kind Kubernetes the hard way using vagrant Kubernetes with kubeadm using…

Introduction In this article we will explore how to create an operator that can prefetch our images (from our deployments to all nodes) using the Operator SDK, you might be wondering why would you want to do this? …

Introduction In this article we will test how to lint and get automatic checks in our github pull requests for our terraform code using reviewdog and the tflint github action, this is particularly useful to prevent unwanted changes or buggy commits to be merged into your principal branch whatever that…

Introduction In this article we will continue where we left off the forward project last time, in this article we will use gitlab-ci to test, build and push the image of our operator to dockerhub. Gitlab offers a pretty complete solution, but we will only sync our repo from github and…

Introduction In this article we will see how to use kubebuilder and Kind to create a local test cluster and an operator, then deploy that operator in the cluster and test it, the repository with the files can be found here, also if you want to learn more about the…

Introduction In this article we will see the basics to have tests for your terraform code using a re-usable pattern, we will use the code from the last article Serverless authentication with Cognito, so refer to that one before starting this one if you want to know how did we…

Introduction In this article we will see how to use Terraform and Go to create a serverless API using API Gateway, Lambda, and Go, and we will also handle authentication with AWS Cognito, the repo with the files can be found here. Terraform In this example I used terraform 0.12…