hi all
i have the following situation:
i have 4 real servers (two exchange2013 and 2 citrix) which should get
loadbalanced behind haproxy 1.4 (because this is the version shipped with
redhat).
this backendservers should talk:
exchanges: https, pop3, imap, pop3s, imaps
citix: https
https should get passed through, eg. the certificates are on the real
servers and NOT on the loadbalancer.
i would like to have a single check for all exchange-services. this
check is https://exchange/ews/healthcheck.html
if this fails all services for exchange should switch over.
and for citrix i would like to fail if the real-servers fail, eg with
httperrorcode 503. it works if a service goes down completely, but not
with 503. currently this does not fail, as a connect is possible.
my configuration:
global
log 127.0.0.1 local2
log 127.0.0.1 local2 debug
maxconn 40000.
daemon
nbproc 1.
defaults
timeout server 86400000
timeout connect 86400000
timeout client 86400000
timeout queue 1000s
listen exch2013_https 192.168.128.152:443
mode tcp
balance source
reqadd X-Forwarded-Proto:\ http
server exch1 192.168.129.71:443 weight 1 check
server exch2 192.168.129.72:443 weight 1 check
listen exch2013_pop3 192.168.128.152:110
mode tcp
balance source
server tlrexch1 192.168.129.71:110 weight 1 check
server tlrexch2 192.168.129.72:110 weight 1 check
listen exch2013_imap 192.168.128.152:143
mode tcp
balance source
server tlrexch1 192.168.129.71:143 weight 1 check
server tlrexch2 192.168.129.72:143 weight 1 check
listen exch2013_pop3s 192.168.128.152:995
mode tcp
balance source
server tlrexch1 192.168.129.71:995 weight 1 check
server tlrexch2 192.168.129.72:995 weight 1 check
listen exch2013_imaps 192.168.128.152:993
mode tcp
balance source
server tlrexch1 192.168.129.71:993 weight 1 check
server tlrexch2 192.168.129.72:993 weight 1 check
listen citrix 192.168.128.153:443
mode tcp
option ssl-hello-chk
balance source
http-check expect status 200
server xenstore01 192.168.129.40:443 weight 1 check inter 2000
fall 3
server xenstore02 192.168.129.41:443 weight 1 check inter 2000
fall 3
*) is this possible with haproxy 1.4?
*) can haproxy check for a "local" file residing on the loadbalancer
itself? maybe by file:///tmp/healthcheck.txt
*) is there any release-schedule for the next stable version?
thanks in advance
josef
