Import files into objects using helm

2 min read

When writing helm charts being able to specify the files to use for ConfigMap or a Secret objects is way more convenient than having the object already rendered. Using .Files.Glob we can tell help to import a set of files into the object

08/07/2022

Installing helm a k3s node: Kubernetes cluster unreachable

2 min read

Some times for convenience we might want to install helm on one of the k3s nodes. If we do so we'll get the following error:

# helm list
Error: Kubernetes cluster unreachable: Get "http://localhost:8080/version": dial tcp 127.0.0.1:8080: connect: connection refused

07/07/2022

Setting custom tags on dynamically provisioned Volumes

2 min read

Since the version 1.6.0 of the EBS CSI driver it is now possible to define a set of custom tags to add the the volumes.

06/07/2022

external DNS: Ignore Ingress object

1 min read

If we are using external DNS to create DNS records based on the configured Ingress objects we might face a situation where we have two Ingress objects with the same hosts configured:

$ kubectl get ingress
NAME                    CLASS    HOSTS                                          ADDRESS       PORTS     AGE
repo-nginx              <none>   repo.pet2cattle.com                            10.12.10.21   80        194d
repo-alb                <none>   repo.pet2cattle.com                            10.12.10.31   80, 443   115d

In a situation like this, we want to be able to tell external DNS to ignore one of them.

05/07/2022

terraform graph: Getting a visual representation of terraform code

2 min read

Using the terraform graph we can theoretically get a visual representation of either the plan or the current configuration

04/07/2022