5bddf39fb2
QUIC haproxy implementation relies on specific OS features to activate some UDP optimization. One of these is the ability to bind multiple sockets on the same address, which is necessary to have a dedicated socket for each QUIC connections. This feature support is tested during startup via an internal proto-quic function. It automatically deactivate socket per connection if OS is not compatible. The purpose of this patch is to render this QUIC feature detection code more generic. Function is renamed quic_test_socketopts() and is still invoked on startup. Its internal code has been refactored to be able to implement other features support test in it. Return value has also been changed and is now taken into account. In case of ERR_FATAL, haproxy startup will be interrupted. This happens on socket() syscall failure used to duplicate a QUIC listener FD. This commit will become necessary to detect GSO support on startup.
HAProxy
HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Installation
The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.
Getting help
The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.
The issue tracker is only for bug reports or feature requests.
Documentation
The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.
Please refer to the following files depending on what you're looking for:
- INSTALL for instructions on how to build and install HAProxy
- BRANCHES to understand the project's life cycle and what version to use
- LICENSE for the project's license
- CONTRIBUTING for the process to follow to submit contributions
The more detailed documentation is located into the doc/ directory:
- doc/intro.txt for a quick introduction on HAProxy
- doc/configuration.txt for the configuration's reference manual
- doc/lua.txt for the Lua's reference manual
- doc/SPOE.txt for how to use the SPOE engine
- doc/network-namespaces.txt for how to use network namespaces under Linux
- doc/management.txt for the management guide
- doc/regression-testing.txt for how to use the regression testing suite
- doc/peers.txt for the peers protocol reference
- doc/coding-style.txt for how to adopt HAProxy's coding style
- doc/internals for developer-specific documentation (not all up to date)
License
HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.