K8s Troubleshooting — Invalid or Unsupported Manifest Version

K8s Troubleshooting handbook

Note, full K8s troubleshooting mind map is available at: “K8s Troubleshooting MindMap”

What is Invalid or Unsupported Manifest Version Error?

In K8s, this K8s error typically arises when trying to apply a K8s manifest (YAML/JSON file) that contains a resource with an API version that the current K8s cluster does not recognize or support. This can happen for a variety of reasons, such as:

• Using a newer manifest with an older Kubernetes cluster that doesn’t recognize the newer API version.
• Using a deprecated API version that is no longer supported by the Kubernetes cluster.

For example, imagine you are trying to deploy a Deployment resource. Deployments were introduced in the extensions/v1beta1 API group, then moved to apps/v1beta2, and later to apps/v1. If you have a newer K8s cluster but use a manifest specifying the older extensions/v1beta1 for Deployments, you might run into issues.

The deploy_old.yaml may look like:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: my-deployment
spec:
  replicas: 3
  template:
    metadata:
      labels:
        app: my-app…