HAProxy - Load balancer
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Willy Tarreau 004e1be48e BUG/MINOR: config: emit warning for empty args when *not* in discovery mode
This actually reverses the condition of commit 5f1fad1690 ("BUG/MINOR:
config: emit warning for empty args only in discovery mode"). Indeed,
some variables are not known in discovery mode (e.g. HAPROXY_LOCALPEER),
and statements like:

   peer "${HAPROXY_LOCALPEER}" 127.0.0.1:10000

are broken during discovery mode. It turns out that the warning is
currently hidden by commit ff8db5a85d ("BUG/MINOR: config: Stopped
parsing upon unmatched environment variables") since it silently drops
empty args which is sufficient to hide the warning, but it also breaks
other configs and needs to be reverted, which will break configs like
above again.

In issue #2995 we were not fully decided about discovery mode or not,
and already suspected some possible issues without being able to guess
which ones. The only downside of not displaying them in discovery mode
is that certain empty fields on the rare keywords specific to master
mode might remain silent until used. Let's just flip the condition to
check for empty args in normal mode only.

This should be backported to 3.2 after some time of observation.
2025-11-06 19:57:44 +01:00
.github CI: github: update to macos-26 2025-11-03 16:17:36 +01:00
addons MINOR: applet: Add a flag to know an applet is using HTX buffers 2025-08-25 11:11:05 +02:00
admin ADMIN: reload: introduce -vv mode 2025-09-29 19:29:10 +02:00
dev DEV: patchbot: use git reset+checkout instead of pull 2025-10-08 04:38:35 +02:00
doc BUG/MINOR: config: Limit "tune.maxpollevents" parameter to 1000000 2025-11-06 15:56:21 +01:00
examples MINOR: mailers: warn if mailers are configured but not actually used 2025-06-27 16:41:18 +02:00
include BUG/MEDIUM: server: close a race around ready_srv when deleting a server 2025-11-06 19:57:44 +01:00
reg-tests REGTESTS: converters: check USE_OPENSSL in aes_gcm.vtc 2025-10-31 12:43:00 +01:00
scripts SCRIPTS: build-ssl: fix rpath in AWS-LC install for openssl and bssl bin 2025-11-03 15:04:57 +01:00
src BUG/MINOR: config: emit warning for empty args when *not* in discovery mode 2025-11-06 19:57:44 +01:00
tests TESTS: quic: add unit-tests for QUIC TX part 2025-09-08 14:49:03 +02:00
.cirrus.yml CI: cirrus-ci: bump FreeBSD image to 14-3 2025-10-09 14:06:48 +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 DOC: clarify the experimental status for certain features 2025-10-17 18:41:13 +02:00
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.3-dev11 2025-10-31 10:09:57 +01:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2025-04-02 11:12:20 +02:00
INSTALL BUILD: makefile: bump the default minimum linux version to 4.17 2025-09-05 09:44:56 +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 MEDIUM: ssl/ech: config and load keys 2025-10-30 10:37:12 +01:00
README.md DOC: change the link to the FreeBSD CI in README.md 2024-06-03 15:21:29 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.3-dev11 2025-10-31 10:09:57 +01:00
VERSION [RELEASE] Released version 3.3-dev11 2025-10-31 10:09:57 +01:00

HAProxy

alpine/musl AWS-LC openssl no-deprecated Illumos NetBSD 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.