teamhephy/router

Support proxying HTTP/2 to backend applications

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#16 opened on Mar 13, 2018

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enhancementhelp wanted

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Description

From @codyaray on November 9, 2016 14:14

We're looking for a PaaS which supports proxying HTTP/2 to the backend app to enable mobile support for gRPC. Deis supports terminating HTTP/2 at the router and opening an HTTP/1.1 connection to the app (#216) currently. The only L7 router that I know of which supports HTTP/2 to the backend is nghttpx (with --http2-bridge in v1.8 or backend=<ADDR>,<PORT>;;proto=h2;tls later). The other option is using a L4 load balancer to opaquely proxy the TCP stream. Felix says that the only tool he knows of to route to multiple TCP backends based on the SNI header is HAProxy.

Copied from original issue: deis/router#287

Contributor guide

Research direction
Investigate how to add HTTP/2 proxying to the router. Study nghttpx and HAProxy approaches. Consider options like h2c or h2 over TLS. Look into Go's http2 package for server side support.
Tech stack
go
Domain
backendnetworking
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GoHTTP/2
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30