d759e60a32
Storing the protocol directly into the check was not a good idea, because the protocol may not be determined until after a DNS resolution on the server, and may even change at runtime, if the DNS changes. What we can, however, figure out at start up, is the net_addr_type, which will contain all that we need to find out which protocol to use later. Also revert the changes made by commit 07edaed1918a6433126b4d4d61b7f7b0e9324b30 that would not reuse the server xprt if a different alpn is set for checks. The alpn is just a string, and should not influence the choice of the xprt. We'll now make sure to use the server xprt, unless an address is provided, in which case we'll use whatever xprt matches that address, or a port, in which case we'll assume we want TCP, and use check_ssl to know whetver we want the SSL xprt or not. Now that the check contains all that is needed to know which protocol to look up, always just use that when creating a new check connection if it is the default check connection, and for now, always use TCP when a tcp-check or http-check connect rule is used (which means those can't be used for QUIC so far). This should hopefully fix github issue #3324.
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.