HAPROXY:显示从外部检查脚本到rsyslog的日志消息

Question

我想从HAPROXY的外部检查脚本打印一些日志消息到rsyslog。目前，我在external-check.sh脚本中使用"echo"，但它不会显示echo消息。它只显示haproxy日志消息。这可能吗？

haproxy.cfg:的内容

global
log 127.0.0.1 local0
external-check
insecure-fork-wanted
defaults
mode                    http
log                     global
option                  httplog
timeout queue           1m
timeout connect         10m
timeout client          1m
timeout server          10m
timeout http-keep-alive 10s
timeout check           10m
timeout tunnel          10m
maxconn                 2048
frontend pa
bind *:443
use_backend back-servers
backend back-servers
option external-check
option log-health-checks
external-check command /etc/haproxy/external-check.sh
server PA-A xxx check inter 30s fall 6 rise 1 ssl verify none
server PA-B xxx backup check inter 30s fall 6 rise 1 ssl verify none

/etc/rsyslog.d/haproxy.conf的内容

$ModLoad imudp
$UDPServerRun 514 
$template Haproxy,"%msg%n"
local0.* -/var/log/haproxy.log

日志输出示例：

Health check for server back-servers/PA-A failed, reason: External check timeout, code: 1, check duration: 30009ms, status: 0/1 DOWN.
Health check for server back-servers/PA-A failed, reason: External check error, code: 1, check duration: 738ms, status: 0/1 DOWN.
Health check for backup server back-servers/PA-B failed, reason: External check timeout, code: 1, check duration: 30022ms, status: 0/1 DOWN.
Health check for backup server back-servers/PA-B failed, reason: External check error, code: 1, check duration: 1590ms, status: 0/1 DOWN

正如你所看到的，没有我的"；回声；(s( 我已经添加到外部检查脚本中

Answer 1

我得到了答案：

目前，我使用echo，但我应该使用logger通过127.0.0.1将消息从外部脚本记录到rsyslog套接字。默认情况下，HAPROXY不会为我们做这件事。它只重定向haproxy.cfg事件的日志消息，而不会重定向外部脚本消息。诀窍是将所有echo消息替换为：

logger -p local0.info -t external-script -n 127.0.0.1 "My message"