new HPA API version: autoscaling/v2

2 min read

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

Kubernetes: Autoscaling using Prometheus as a external metrics provider

5 min read

Using an external metrics provider (Kubernetes 1.10+) we can use an HorizontalPodAutoscaler to automatically scale applications using any metric collected by Prometheus. Let's take a look on how to configure it

05/04/2022

Autoscaling using datadog as a external metrics provider

3 min read

Since Kubernetes v1.2 we can autoscale an application based on metrics like CPU provided by the metrics-server. As of Kubernetes v1.6, it is possible to autoscale off of custom metrics and later on, starting Kubernetes v1.10, we can autoscale using any metric from outside the cluster, like the ones collected by datadog

10/01/2022

Using an HPA object to autoscale a deployment based on it's Pods CPU metrics

3 min read

On Kubernetes, scaling an application is just a matter of defining how many replicas we want:

$ kubectl scale deployment/demo --replicas=5
deployment.apps/demo scaled

Having to manually adjust the number of replicas is not really practical. Here's where the HorizontalPodAutoscaler (HPA) comes into play

01/07/2021