kscaler is a simple tool for performing resource scale testing against your kubernetes cluster. Think of it as a gas pedal; push as much as you want.
Why use kscaler?
I started with various forms of "simple" scale testing for k8s clusters; bash scripts, one-off manifests, kubectl copy-pasta, and terraform modules.
Ultimately, I wanted a single solution that works on all the platforms I develop on: Windows, Mac, and Linux. Enter kscaler.
Windows: $HOME\.kube\config
Linux/Mac: $HOME/.kube/config
kscaler resource count --kubeconfig /path/to/kube/config
Note: kscaler will attempt read the local KUBECONFIG variable if the --kubeconfig parameter is not set.
Some resources have additional parameters, which are noted below:
pod: image
- set a custom container image. The default is busybox.
secret: size
- set a custom secret size in kilobytes. The default is a random size in the range of 1Kb to 1500Kb for each secret kscaler creates.
# Create 500 namespaces
kscaler namespace 500
# Create 5000 secrets with a static size of 750Kb
kscaler secret 5000 --size 750
# Create 5000 secrets with auto-generated size ranging from 1Kb to 1500Kb
# The default behavior for kscaler when performing secret generation is to randomize the size of each secret
kscaler secret 5000
# Create 875 pods using the default busybox container image
kscaler pod 875
# Create 875 pods using a custom container image
kscaler pod 875 --image cptrosskirk/busybox-scaler- Does kscaler cleanup after itself?
Not unless you tell it to. kscaler was intended to be a "scale until it breaks" tool. With that design in mind, I opted to make cleanup a manual task as the easier solution would be to tear down and build a new kubernetes cluster.
- How can I tell kscaler to cleanup the resources it creates?
kscaler cleanup will attempt to perform a deletion on every resource it created by looking for the kscaler-made-this: true label on each resource in the specified k8s cluster. revvy will prompt for confirmation prior to starting the cleanup unless --approve is also passed.
No.
If you really want to run kscaler in prod, I have an ocean-view condo in Arizona available too.