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mirror of https://gitlab.archlinux.org/archlinux/infrastructure.git synced 2025-01-05 10:34:10 +01:00
infrastructure/roles/mta_sts
Kristian Klausen 8dfa7e8c3e
nginx: Add plumbing for enabling HTTP/3 conditionally
We want to roll out HTTP/3 slowly, so this adds the necessary plumbing
and makes it possible to enable it per host.

Instead of adding the conditional logic to each nginx template, the 443
listen config is moved out into a snippet which is managed by the nginx
role.

HTTP/3 uses QUIC which is built on UDP. UDP is connectionless and
therefore reuseport[1][2] must be used to ensure that UDP packets for
the same QUIC connection is directed to the same worker. reuseport can
only be enabled once, so a default_server is added to the
"inventory_hostname vhost" for SSL/QUIC (reuseport is only enabled for
the latter). ssl_reject_handshake[3] is enabled as that allows enabling
SSL/QUIC without specifying a certificate.

[1] https://nginx.org/en/docs/http/ngx_http_core_module.html#listen
[2] https://lwn.net/Articles/542629/
[3] http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_reject_handshake

Ref #606
2024-08-17 21:53:32 +02:00
..
defaults Make the lists.al.org VPS the new lists server 2021-06-30 09:30:31 +00:00
tasks Capitalize the handler name in handler invocations 2022-08-29 21:46:39 +03:00
templates nginx: Add plumbing for enabling HTTP/3 conditionally 2024-08-17 21:53:32 +02:00