MINOR: contrib/prometheus-exporter: Add heathcheck status/code in server metrics
ST_F_CHECK_STATUS and ST_F_CHECK_CODE are now part of exported server metrics:
* haproxy_server_check_status
* haproxy_server_check_code
The heathcheck status is an integer corresponding to HCHK_STATUS value.
(cherry picked from commit cf403f32e4bd5217064f8831930b45c5fb37131b)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit f7d4218967314c5673fff2793e1a1e5681eb756b)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
diff --git a/contrib/prometheus-exporter/README b/contrib/prometheus-exporter/README
index b19acc1..a9bd5e7 100644
--- a/contrib/prometheus-exporter/README
+++ b/contrib/prometheus-exporter/README
@@ -268,6 +268,8 @@
| haproxy_server_client_aborts_total | Total number of data transfers aborted by the client. |
| haproxy_server_server_aborts_total | Total number of data transfers aborted by the server. |
| haproxy_server_weight | Service weight. |
+| haproxy_server_check_status | Status of last health check, if enabled. (see below for the mapping) |
+| haproxy_server_check_code | layer5-7 code, if available of the last health check. |
| haproxy_server_check_failures_total | Total number of failed check (Only when the server is up). |
| haproxy_server_check_up_down_total | Total number of UP->DOWN transitions. |
| haproxy_server_downtime_seconds_total | Total downtime (in seconds) for the service. |
@@ -278,3 +280,30 @@
| haproxy_server_idle_connections_current | Current number of idle connections available for reuse. |
| haproxy_server_idle_connections_limit | Limit on the number of available idle connections. |
+----------------------------------------------------+---------------------------------------------------------------------------+
+
+Mapping of health check status :
+
+ 0 : HCHK_STATUS_UNKNOWN (Unknown)
+ 1 : HCHK_STATUS_INI (Initializing)
+
+ 4 : HCHK_STATUS_HANA (Health analyze detected enough consecutive errors)
+
+ 5 : HCHK_STATUS_SOCKERR (Socket error)
+
+ 6 : HCHK_STATUS_L4OK (L4 check passed, for example tcp connect)
+ 7 : HCHK_STATUS_L4TOUT (L4 timeout)
+ 8 : HCHK_STATUS_L4CON (L4 connection problem)
+
+ 9 : HCHK_STATUS_L6OK (L6 check passed)
+ 10 : HCHK_STATUS_L6TOUT (L6 (SSL) timeout)
+ 11 : HCHK_STATUS_L6RSP (L6 invalid response - protocol error)
+
+ 12 : HCHK_STATUS_L7TOUT (L7 (HTTP/SMTP) timeout)
+ 13 : HCHK_STATUS_L7RSP (L7 invalid response - protocol error)
+ 15 : HCHK_STATUS_L7OKD (L7 check passed)
+ 16 : HCHK_STATUS_L7OKCD (L7 check conditionally passed)
+ 17 : HCHK_STATUS_L7STS (L7 response error, for example HTTP 5xx)
+
+ 18 : HCHK_STATUS_PROCERR (External process check failure)
+ 19 : HCHK_STATUS_PROCTOUT (External process check timeout)
+ 20 : HCHK_STATUS_PROCOK (External process check passed)