When to Use VPA Recommendations

Now that we have a deep understanding of how the VPA Recommender works, let's see a practical example. Change from Auto mode to Off mode and apply the VPA resource:

kubectl apply -f - <
apiVersion: autoscaling.k8s.io/v1
kind: VerticalPodAutoscaler
metadata:
  name: stateless-flask-vpa
  namespace: stateless-flask
spec:
    targetRef:
        apiVersion: "apps/v1"
        kind:       Deployment
        name:       stateless-flask
    updatePolicy:
        updateMode: "Off"
EOF

Describe the VPA resource:

kubectl describe vpa stateless-flask-vpa -n stateless-flask

The above command will output something like this:

[...]
Recommendation:
  Container Recommendations:
    Container Name:  stateless-flask
    Lower Bound:
      Cpu:     25m
      Memory:  250Mi
    Target:
      Cpu:     25m
      Memory:

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