HAProxy - Load balancer
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Willy Tarreau 75e013727c DEV: patchbot: update: never write to stderr, thttpd sends it first
thttpd forwards the CGI's stderr to the client *ahead* of its stdout:
the socket receives the HTTP status line, then any stderr log line, and
only then the CGI headers, turning the log line into a bogus response
header; on an error path the same mechanism could push garbage in front
of the "Status:" header and corrupt the response entirely.

All diagnostics are already carried by the response itself (die()'s
body, the in-band "warning:" line with git's captured error), so the
duplicated stderr logging brings nothing and only risks breaking the
channel it leaks into: drop it, and state the constraint in a comment
above die() so it doesn't come back. The usage text for a bad command
line is folded into the 500 response body, which is also what a shell
user sees when testing by hand.
2026-07-07 14:45:32 +02:00
.github CI: github: remove OpenTracing leftovers 2026-06-26 16:45:38 +02:00
addons MAJOR: ot: remove deprecated OpenTracing support 2026-06-26 11:27:07 +02:00
admin CLEANUP: admin/halog: improve handling of memory allocation errors 2026-05-31 10:30:00 +02:00
dev DEV: patchbot: update: never write to stderr, thttpd sends it first 2026-07-07 14:45:32 +02:00
doc MEDIUM: quic: remove deprecated keywords 2026-07-06 17:19:24 +02:00
examples EXAMPLES: lua/acme: fix acme-gandi-livedns.lua configuration example 2026-06-15 13:50:22 +02:00
include BUG/MEDIUM: mux_quic: complete stream shutdown for read channel 2026-07-06 10:19:12 +02:00
reg-tests REGTESTS: server: add test for 'set server name' CLI command 2026-07-01 09:32:30 +02:00
scripts MAJOR: ot: remove deprecated OpenTracing support 2026-06-26 11:27:07 +02:00
src MEDIUM: quic: remove deprecated keywords 2026-07-06 17:19:24 +02:00
tests TESTS: quic: add unit-tests for QUIC TX part 2025-09-08 14:49:03 +02:00
.gitattributes MINOR: Configure the cpp userdiff driver for *.[ch] in .gitattributes 2021-02-22 18:17:57 +01:00
.gitignore MINOR: tevt/dev: Add term_events tool 2025-01-31 10:41:50 +01:00
.mailmap DOC: update Tim's address in .mailmap 2021-09-16 09:14:14 +02:00
.travis.yml MEDIUM: mworker: remove USE_SYSTEMD requirement for -Ws 2024-11-20 12:07:38 +01:00
BRANCHES CLEANUP: tree-wide: fix typos in user-invisible files 2026-05-13 17:03:48 +02:00
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.5-dev1 2026-06-25 16:53:19 +02:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2025-04-02 11:12:20 +02:00
INSTALL BUILD: makefile: add a new generic target "tiny" 2026-07-03 16:33:27 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
Makefile BUILD: makefile: add a new generic target "tiny" 2026-07-03 16:33:27 +02:00
README.md CI: github: replace cirrus by a vmactions/freebsd-vm job 2026-06-03 11:20:31 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.5-dev1 2026-06-25 16:53:19 +02:00
VERSION [RELEASE] Released version 3.5-dev1 2026-06-25 16:53:19 +02:00

HAProxy

AWS-LC Illumos NetBSD CrossCompile FreeBSD VTest

HAProxy logo

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:

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.