kyverno/test/resources/resource_validate_fsgroup.yaml

apiVersion: v1
kind: Pod
metadata:
  name: fsgroup-demo
spec:
  securityContext:
    fsGroup: 2000                           # directory will have group ID 2000
    runAsUser: 1000
    runAsGroup: 3000
  volumes:
  - name: fsgroup-demo-vol
    emptyDir: {}
  containers:
  - name: fsgroup-demo
    image: busybox
    command: [ "sh", "-c", "sleep 1h" ]
    volumeMounts:
    - name: fsgroup-demo-vol
      mountPath: /data/demo