Multi-hop integration tests (server package):
- TestMultiHopProxyProtocol: full edge→origin deployment with two
mc-proxy instances. Edge uses L4 passthrough with send_proxy_protocol,
origin has proxy_protocol listener with L7 route. Verifies the real
client IP (127.0.0.1) flows through PROXY protocol into the origin's
X-Forwarded-For header on the h2c backend.
- TestMultiHopFirewallBlocksRealIP: origin firewall blocks an IP from
the PROXY header while allowing the TCP peer (edge proxy). Verifies
the backend is never reached.
L7 package integration tests:
- TestL7LargeResponse: 1 MB response through the reverse proxy.
- TestL7GRPCTrailers: HTTP/2 trailer propagation (Grpc-Status,
Grpc-Message) through the reverse proxy, validating gRPC
compatibility.
- TestL7HTTP11Fallback: client negotiates HTTP/1.1 only (no h2 ALPN),
verifies the proxy falls back to HTTP/1.1 serving and still
forwards to the h2c backend successfully.
Also updates PROGRESS.md to mark all five phases complete.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Kyle Isom
b6c96ad42f