I'm seeing this line the logs of my Vault instances:
http/handleRequestForwarding: error forwarding request: error=error during forwarding RPC request
At the same time request forwarding doesn't seem to be working because I'm getting 307
responses when I try to curl http://vault:8200/v1/secret/foo
. This is a problem since the individual instances aren't accessible from outside my Kubernetes cluster, only way is to use the load balancer.