当我在容器内运行 haproxy 时，我很难从它获取访问和健康检查日志，因此我按照文档中的说明进行操作（使用 Docker | HAProxy Enterprise 2.2r1 设置日志），我的配置如下所示：
#---------------------------------------------------------------------
# Global settings
#---------------------------------------------------------------------
global
daemon
log stdout format raw local0
maxconn 4000
nbproc 1
nbthread 12
# turn on stats unix socket
# stats socket /var/lib/haproxy/stats
#---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaults
timeout connect 10s
timeout check 10s
timeout client 60s
timeout server 60s
timeout queue 60s
timeout http-keep-alive 10s
maxconn 3000
log global
retries 3
frontend http_in
mode http
timeout http-request 10s
option http-keep-alive
option forwardfor
bind 192.16.1.103:80
use_backend http_be
backend http_be
mode http
option http-keep-alive
option forwardfor
option redispatch
balance roundrobin
server 192.16.1.6 192.16.1.6:80
server 192.16.1.5 192.16.1.5:
80
但是我在 kubernetes 日志中看到的唯一日志是 haproxy 启动时：
kubectl logs vcn1-lb1-78c4c86676-w4q2p
Proxy http_in started.
Proxy http_be started.
我试过了：
log stdout format raw local0 debug
log stderr format raw local0 debug
log stderr format raw local0
但是什么都不能让我访问或检查健康日志数据？我想要的日志类型是在容器中不运行 haproxy 时看到的类型：
我正在寻找的日志类型是在容器外运行时获得的标准日志：
Jan 23 10:29:00 ca-rain03 haproxy[5789]: Health check for server admin_be/ca-rain03 succeeded, reason: Layer7 check passed, code: 200, check duration: 1ms, status: 3/3 UP.
Jan 23 10:30:52 ca-rain03 haproxy[5789]: 253.255.0.35:44932 [23/Jan/2021:10:30:52.270] http_in admin_be/ca-rain01 0/0/0/1/1 200 219 - - ---- 1/1/0/0/0 0/0 "GET / HTTP/1.1"
至于监听端口 1024 的建议，容器中或 pod 节点上都没有任何内容监听该端口：
netstat -ntpl
Local Address Foreign Address State PID/Program name
tcp 0 0 192.16.1.103:80 0.0.0.0:* LISTEN 12/haproxy
tcp 0 0 192.16.1.103:22 0.0.0.0:* LISTEN 12/haproxy
或者在 pod 节点外部：
netstat -ntpl | grep :1024
tcp 0 0 127.0.0.1:10248 0.0.0.0:* LISTEN 21586/kubelet
tcp 0 0 127.0.0.1:10249 0.0.0.0:* LISTEN – Br