A Practical Guide to Kubernetes/

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Examining QoS in Action

Examining QoS in Action

Learn to use Qos and see QoS in action.

We'll cover the following...

Checking QoS with initial definition

Let's look at the QoS to which our `go-demo-2-db` Pod is assigned:

kubectl describe pod go-demo-2-db

The output, limited to the relevant parts, is as follows.

...
Containers:
  db:
    ...
    Limits:
      cpu:    100m
      memory: 100Mi
    Requests:
      cpu:    10m
      memory: 50Mi
...
QoS Class:       Burstable
...

The Pod is assigned Burstable QoS.

Note: Its limits are different from requests, so it did not qualify for Guaranteed QoS.

Since its resources are set, and it is not eligible for ...