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Quota

 

You can now apply constraints that limit resource consumption per namespace, similar to the OpenStack tenant. For example, you can limit the quantity of objects that can be created in a namespace, the total amount of compute resources that may be consumed by resources, etc. The constraint in k8s is called quota. Here’s an example:

There, we just created quota quota-onepod, and the constraint we gave is pods=1 – so only one pod is allowed to be created in this namespace:

And now create a pod within it:

That works fine, so now let’s create a second pod in it:

Immediately we run into the error exceeded quota. Let’s delete the quota quota-onepod. This new pod will be created after the quota is removed: