tree 9d8b8b8efcab8aed2bbc19f0497356e26ccbfb6b
parent de85de69ec573d0756720b6314693f7f65cc4a27
author Willy Tarreau <w@1wt.eu> 1681888353 +0200
committer Willy Tarreau <w@1wt.eu> 1681890740 +0200
encoding latin1

MEDIUM: config: set useful ALPN defaults for HTTPS and QUIC

This commit makes sure that if three is no "alpn", "npn" nor "no-alpn"
setting on a "bind" line which corresponds to an HTTPS or QUIC frontend,
we automatically turn on "h2,http/1.1" as an ALPN default for an HTTP
listener, and "h3" for a QUIC listener. This simplifies the configuration
for end users since they won't have to explicitly configure the ALPN
string to enable H2, considering that at the time of writing, HTTP/1.1
represents less than 7% of the traffic on large infrastructures. The
doc and regtests were updated. For more info, refer to the following
thread:

  https://www.mail-archive.com/haproxy@formilux.org/msg43410.html