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
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haproxy	MINOR: contrib/prometheus-exporter: export build_info	2021-01-08 14:48:13 +01:00
import	CLEANUP: assorted typo fixes in the code and comments	2021-01-06 16:26:50 +01:00