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☑️ Prevent deprecated APIs in Kubernetes v1.16

The v1.16 release stopped serving some API versions for different resource types. When a user deploys a resource with a deprecated API version, the Kubernetes engine rejects it.

caution

Kubernetes v1.16 is no longer (officially) supported since 2 September 2020, So if you are still running this version, consider upgrading it as soon as possible.

Targeted resources by this rule (types of kind): NetworkPolicy / Deployment / DaemonSet / StatefulSet

Enabled by default? True

Policy as code identifier: K8S_DEPRECATED_APIVERSION_1.16


This rule will fail

If one of the following API versions is used:

  • extensions/v1beta1
  • apps/v1beta1
  • apps/v1beta2
apiVersion: apps/v1beta2
kind: Deployment

Rule output in the CLI

$ datree test *.yaml

>> File: failExample.yaml
❌ Prevent deprecated APIs in Kubernetes v1.16 [1 occurrence]
💡 Incorrect value for key `apiVersion` - the version you are trying to use is not supported by the Kubernetes cluster version (>=1.16)

How to fix this failure

Use apps/v1 instead of the deprecated version

apiVersion: apps/v1
kind: Deployment

Read more