In kubernetes I can currently limit the CPU and Memory of the containers, but what about the hard disk size of the containers.
For example, how could I avoid that someone runs a container in my k8s worker node that stores internally .jpg files making this container grow and grow with the time.
Not talking about Persistent Volume and Persistent Volume Claim. I'm talking that if someone makes an error in the container and write inside the container filesystem I want to control it.
Is there a way to limit the amount of disk used by the containers?
Thank you.
There is some support for this; the tracking issues are #361, #362 and #363. You can define requests and/or limits on the resource called ephemeral-storage, like so (for a Pod/PodTemplate):
spec:
containers:
- name: foo
resources:
requests:
ephemeral-storage: 50Mi
limits:
ephemeral-storage: 50MiThe page Reserve Compute Resources for System Daemons has some additional information on this feature.