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William Dauchy 5a982a7165 MINOR: contrib/prometheus-exporter: export build_info 
commit c55a626217 ("MINOR: contrib/prometheus-exporter: Add
missing global and per-server metrics") is renaming two metrics between
v2.2 and v2.3:
  server_idle_connections_current
  server_idle_connections_limit

It is breaking some tools which are making use of those metrics while
supporting several haproxy versions. This build_info will permit tools
which make use of metrics to be able to match the haproxy version and
change the list of expected metrics. This was possible using the haproxy
stats socket but not with prometheus export.

This patch follows prometheus best pratices to export specific software
informations. It is adding a new field `build_info` so we can extend it
to other parameters if needed in the future.

example output:
  # HELP haproxy_process_build_info HAProxy build info.
  # TYPE haproxy_process_build_info gauge
  haproxy_process_build_info{version="2.4-dev5-2e1a3f-5"} 1

Even though it is not a bugfix, this patch will make more sense when
backported up to >= 2.0

Signed-off-by: William Dauchy <wdauchy@gmail.com>
 		2021-01-08 14:48:13 +01:00
.github CI: github actions: build several popular "contrib" tools 2021-01-05 17:44:00 +01:00
contrib MINOR: contrib/prometheus-exporter: export build_info 2021-01-08 14:48:13 +01:00
doc MINOR: converter: adding support for url_enc 2021-01-06 23:43:04 +01:00
examples CLEANUP: assorted typo fixes in the code and comments 2020-06-26 11:27:28 +02:00
include MINOR: contrib/prometheus-exporter: export build_info 2021-01-08 14:48:13 +01:00
reg-tests MINOR: converter: adding support for url_enc 2021-01-06 23:43:04 +01:00
scripts SCRIPTS: make announce release support preparing announces before tag exists 2021-01-06 15:49:44 +01:00
src BUG/MINOR: hlua: Fix memory leak in hlua_alloc 2021-01-08 14:46:43 +01:00
tests MEDIUM: config: remove the deprecated and dangerous global "debug" directive 2020-10-09 19:18:45 +02:00
.cirrus.yml CI: cirrus: drop CentOS 6 builds 2020-12-16 09:21:51 +01:00
.gitattributes MINOR: Commit .gitattributes 2020-09-05 16:21:59 +02:00
.gitignore CLEANUP: Update .gitignore 2020-09-12 13:11:24 +02:00
.travis.yml CI: travis-ci: drop coverity scan builds 2020-12-22 19:39:23 +01:00
BRANCHES
…
CHANGELOG [RELEASE] Released version 2.4-dev5 2021-01-06 17:41:32 +01:00
CONTRIBUTING DOC: Use gender neutral language 2020-07-26 22:35:43 +02:00
INSTALL DOC: mention in INSTALL that it's development again 2020-11-05 17:19:13 +01:00
LICENSE
…
MAINTAINERS DOC: email change of the DeviceAtlas maintainer 2020-12-10 11:00:18 +01:00
Makefile BUILD: Makefile: exclude broken tests by default 2021-01-08 14:43:27 +01:00
README
…
ROADMAP
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SUBVERS
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VERDATE [RELEASE] Released version 2.4-dev5 2021-01-06 17:41:32 +01:00
VERSION [RELEASE] Released version 2.4-dev5 2021-01-06 17:41:32 +01:00

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)