Proxy with service mesh

As shown in the diagram below, User A and User B use the kubevpn proxy command to proxy the same service authors respectively:

• User A: kubevpn proxy deployment/authors --headers user=A
• User B: kubevpn proxy deployment/authors --headers user=B

When the authors service in the cluster receives traffic:

• Traffic with user: A in the HTTP header will hit User A's local computer.
• Traffic with user: B in the HTTP header will hit User B's local computer.
• Unmatched traffic in the HTTP header will hit the original authors service in the cluster.

The principle is to use envoy as the data plane and implement a control plane for envoy.