• 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

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  • 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

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  • Enable access logs for an Ingress using ALB

    3 min read

    AWS Kubernetes Ingress ALB access logs

    When configuring the ALB using an Ingress object we can enable storing access logs to an S3 bucket in the same way we can do it for any ALB using terraform

    28/06/2022

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  • new HPA API version: autoscaling/v2

    2 min read

    kubernetes HPA external metrics v2

    Since Kubernetes v1.23 we can now switch to autoscaling/v2, it provides a nicer way of setting the metrics it's going to use to autoscale replicas: External metrics becomes a first-class citizen

    22/06/2022

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  • Building a Kubernetes operator using operator-sdk (golang)

    7 min read

    Kubernetes operator-sdk

    With the operator pattern we are going to define the state we want it to be an let the controller do changes on it so the current state matches the desired state

    Using the operator-sdk we can focus on the code that makes this happen rather than on all the boiler-plate that is going to be involved on it

    21/06/2022

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