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Build option USE_QUIC_OPENSSL_COMPAT=1 must be set to activate QUIC support for OpenSSL prior to version 3.5.2. This compiles an internal compatibility layer, which must be then activated at runtime with global option limited-quic. Starting from OpenSSL version 3.5.2, a proper QUIC TLS API is now exposed. Thus, the compatibility layer is unneeded. However it can still be compiled against newer OpenSSL releases and activated at runtime, mostly for test purpose. As this compatibility layer has some limitations, (no support for QUIC 0-RTT), it's important that users notice this situation and disable it if possible. Thus, this patch adds a notice warning when USE_QUIC_OPENSSL_COMPAT=1 is set when building against OpenSSL 3.5.2 and above. This should be sufficient for users and packagers to understand that this option is not necessary anymore. Note that USE_QUIC_OPENSSL_COMPAT=1 is incompatible with others TLS library which exposed a QUIC API based on original BoringSSL patches set. A build error will prevent the compatibility layer to be built. limited-quic option is thus silently ignored.
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.