-
Installing and configuring AWS Karpenter
7 min read
Starting November 29th 2021, AWS is considering that Karpenter is ready for production: It is a cluster autoscaler alternative intended to improve the efficiency and cost of running workloads on Kubernetes clusters
03/12/2021
Read more... -
Helm: Get values for an installed application
2 min read
When we already have some applicacions installed using helm we might need to retrieve the values we used to install the same application somewhere else. To do so we can use helm get values
02/12/2021
Read more... -
Using AWS Secrets Manager secrets and Systems Manager parameters in Kubernetes with KES
4 min read
By using the Kubernetes External Secrets we can use external secret management systems, like AWS Secrets Manager or Vault, to securely add secrets in Kubernetes.
This is achieved by by using the ExternalSecret object which declares how to fetch the secret data, while the KES controller converts the ExternalSecrets to Secrets. The conversion is completely transparent to Pods that can access Secrets normally.
29/11/2021
Read more... -
Helm: Usage of definitions across files
1 min read
Sometimes writting helm charts can be very challenging due to the weird errors we might get:
<sha256sum>: wrong type for value; expected string; got chartutil.Values26/11/2021
Read more... -
How to retrieve one of the elements of an array on a Helm template
2 min read
While working on Helm charts we might be interested on using a particular element of an array (most likely the first). To achieve this we won't be able to use the regular square brackets approach, instead we will have to use the index function
25/11/2021
Read more...