When L7 Processing is Required — Round Trip via Node Envoy

When L7 Processing is Required — Round Trip via Node Envoy A sequence diagram generated by Archify. HTTP request — L7 policy detected L7 policy detected redirect to proxy — metrics · tracing HTTP parsing · L7 policy enforcement · metrics · tracing forward request deliver packet HTTP response forward response · update metrics process response · update metrics forward response deliver packet Request — redirected to Envoy Response — same path back Client Pod · originates request · Sequence participant Client Pod originates request eBPF (Client) · client-side hook · Sequence participant eBPF (Client) client-side hook Node Envoy · L7 proxy · HTTP parsing · policy · Sequence participant Node Envoy L7 proxy · HTTP parsing · policy eBPF (Server) · server-side hook · Sequence participant eBPF (Server) server-side hook Server Pod · produces response · Sequence participant Server Pod produces response Legend Client-facing HTTP Response Internal proxy hop