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Christopher Faulet ebd0e8f699 BUG/MINOR: promex: Skip resolvers metrics when there is no resolver section 
By default, there is always at least on resolver section, the default one,
based on "/etc/resolv.conf" content. However, it is possible to have no
resolver at all if the file is empty or if any error occurred. Errors are
silently ignored at this stage.

In that case, there was a bug in the Prometheus exporter leading to a crash
because the resolver section list is empty. An invalid resolver entity was
used. To fix the issue we must only take care to not dump resolvers metrics
when there is no resolver.

Thanks to Aurelien to have spotted the offending commit.

This patch should fix the issue #2604. It must be backported to 3.0.

(cherry picked from commit 91fe085943)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
2024-06-12 09:13:19 +02:00
.github CI: github: upgrade the WolfSSL job to 5.7.0 2024-05-28 19:26:52 +02:00
addons MINOR: stats: define stats-file output format support 2024-04-26 10:20:57 +02:00
admin BUILD: address a few remaining calloc(size, n) cases 2024-02-10 11:37:27 +01:00
dev DEV: patchbot: prepare for new version 3.1-dev 2024-05-29 14:38:21 +02:00
doc DOC: config: add missing context hint for new server and proxy keywords 2024-06-12 09:13:15 +02:00
examples CLEANUP: assorted typo fixes in the code and comments 2023-11-23 16:23:14 +01:00
include BUG/MEDIUM: mux-quic: Don't unblock zero-copy fwding if blocked during nego 2024-06-06 14:15:51 +02:00
reg-tests REGTESTS: complete http-reuse test with pool-conn-name 2024-05-28 15:00:54 +02:00
scripts CI: scripts: build vtest using multiple CPUs 2024-05-27 12:15:50 +02:00
src BUG/MINOR: promex: Skip resolvers metrics when there is no resolver section 2024-06-12 09:13:19 +02:00
tests MINOR: ist: define iststrip() new function 2024-04-26 11:29:25 +02:00
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CHANGELOG [RELEASE] Released version 3.0.1 2024-06-10 16:15:30 +02:00
CONTRIBUTING
INSTALL MINOR: version: mention that it's 3.0 LTS now. 2024-05-29 14:40:26 +02:00
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MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
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VERDATE [RELEASE] Released version 3.0.1 2024-06-10 16:15:30 +02:00
VERSION [RELEASE] Released version 3.0.1 2024-06-10 16:15:30 +02:00

README 

The HAProxy documentation has been split into a number of different files for
ease of use.

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)