BACKUP from community edition in kubernetes is this possible?

we have a community edition version 4.4.3 running in a kubernetes cluster in AWS. I am looking to take a dump of the entire db with a view to moving it (eventually to an Auradb hosted version but in the meantime to a GCP hosted version.

I have searched but cannot find a definitive solution of a way to achieve this. I know I cannot use backup so likely would need to use dump, but not sure how that is achievable in a remote kubernetes based cluster.

Is there a way to do this?