Beta Marathon LB

Beta Marathon-LB uses HAProxy 1.8.3.

If you have a custom HAPROXY_HEAD, you should make the following changes prior to upgrading to the beta-marathon-lb package:

1. Remove the daemon line from the global config block.

2. In the global config block, modify this line

stats socket /var/run/haproxy/socket

to this:

stats socket /var/run/haproxy/socket expose-fd listeners

Other comments / changes from pre-beta to beta:

• In the marathon app definition for Marathon-LB itself, added a mount to /dev/log (this gets rid of the sendmsg logger #2 failed: Resource temporarily unavailable (errno=11) messages by allowing haproxy to log to the machine /dev/log device). Only works in docker repository. Alternately, you can suppress these messages by removing these lines from your HAPROXY_HEAD:

  log /dev/log local0
  log /dev/log local1 notice

• Change healthcheck from HTTP to MESOS_HTTP. Cause it's better.
• Preinstall notes included.