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scarba05
Asked: 2012-05-27 02:18:49 +0800 CST

HAProxy running in chroot jail is only logging started messages

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I've configured my HAProxy server to run in a chroot jail logging messages to syslog socket. My problem is that the only messsages currently being logged are for when haproxy is starting up.

May 26 10:42:37 dev haproxy[13986]: Proxy my_listener started.

I've created a user and group called haproxy and then done the following:

su -l haproxy
mkdir jail
mkdir -m 2750 jail/dev
chmod a-w jail

Relevant lines from my haproxy configuration are:

global
    chroot          /home/haproxy/jail
    daemon
    group           haproxy
    node            haproxy
    log             /home/haproxy/jail/dev/log local0

defaults
    log             global
    option          tcplog

syslogd is being started with the option -a /home/haproxy/jail/dev/log and I've added the following line to /etc/syslog.conf

local0.*            -/var/log/haproxy.log

ls -la on jail/dev gives

drwxrws--- 2 haproxy haproxy 4096 May 26 11:07 .
dr-xr-x--x 3 haproxy haproxy 4096 May 26 11:01 ..
srw-rw-rw- 1 root    haproxy    0 May 26 11:07 log

Running Centos 5.5 and HAProxy 1.4.21. As I said I only see the listener start-up messages in haproxy.log and nothing else.

linux centos chroot syslog haproxy

1 Answers

  1. Best Answer

    The problem here was that the path to the syslog socket needed to be specified from the chroot jail directory. The following fixes the issue for me

    global
    log             /home/haproxy/jail/dev/log local0

defaults
    log             /dev/log local0

    One slight issue is that the started messages appear before the stopping messages if you do a reload but I can live with that.

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