[BUG] Bootstrapping nodes fails sometimes: give clear errors

Describe the bug I'm trying to build a cluster on kubernetes. Yesterday it worked like a charm, cluster spun up with 3 masters and 2 data nodes. Redeployed the cluster and it fails:

Bootstrap fails, but on what is unclear to me? Found some guides, but I seem to be ok on the values presented there (except for the memlock which is a problem on k8s, can't be set runtime: circumvented that by bootstrap.memory_lock = false). Apparently checks are done, but which specific check fails is unclear to me.

Expected behavior Give a good reason why it doesn't bootstrap

Plugins default docker image - first boot.

Screenshots If applicable, add screenshots to help explain your problem.

Host/Environment (please complete the following information): Kubernetes cluster, based on standard opensearch 1.0.0 docker container

Additional context Add any other context about the problem here.