☑️ Ensure HPA has minimum replicas configured

When auto-scaling resource utilization is triggered with HPA (HorizontalPodAutoscaler), a range of acceptable values must be set to prevent unintended scaling down scenarios.

Targeted objects by this rule (types of kind): HorizontalPodAutoscaler

Complexity: medium (What does this mean?)

Policy as code identifier: HPA_MISSING_MINREPLICAS_KEY

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This rule will fail

If an HPA doesn't have minimum replicas configured

kind: HorizontalPodAutoscaler
spec:
  maxReplicas: 10

Rule output in the CLI

$ datree test *.yaml

>> File: failExample.yaml
❌ Ensure HPA has minimum replicas configured [1 occurrence]
💡 Missing property object `minReplicas` - the value should be within the accepted boundaries recommended by the organization

---

How to fix this failure

kind: HorizontalPodAutoscaler
spec:
  minReplicas: 1
  maxReplicas: 10

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Read more

• Kubernetes docs - horizontal pod autoscale walkthrough