Haproxy config check(/usr/sbin/haproxy -c -f /etc/haproxy/haproxy.cfg)
returns 3 warnings:
1. keyword 'forceclose' is deprecated in favor of 'httpclose', and will
not be supported by future versions.
2. backend 'galera-back' : 'option tcplog' directive is ignored in
backends.
3. 'http-request' rules ignored for backend 'galera-back' as they
require HTTP mode.
This change fixes 1. and 2.
Fixing 3. will be a bit more tricky as it's a part of
`openstack_haproxy_stick_table` defined in
/opt/openstack-ansible/inventory/group_vars/haproxy/haproxy.yml
Change-Id: Idaa4b5580039857435f90416924dee26a702deba
34ac0710c5