HA Proxy
Install
yum install haproxy
Configure
Edit /etc/haproxy/haproxy.cfg
frontend apache
mode tcp
bind 172.19.65.206:80
default_backend apache-servers
backend apache-servers
balance roundrobin
mode tcp
server apache1 172.19.65.207:80
Execute:
systemctl enable haproxy systemctl start haproxy firewall-cmd --permanent --add-service=http firewall-cmd --permanent --add-service=https firewall-cmd --reload
Configure rsyslog
Edit /etc/rsyslog.conf
# Provides UDP syslog reception $UDPServerAddress 127.0.0.1 $ModLoad imudp $UDPServerRun 514 # Save logs for haproxy global configs local2.* /var/log/haproxy.log # Save logs for haproxy lapoc frontend local0.* /var/log/haproxy-apache.log
Execute:
systemctl restart rsyslog
Subdomain configuration
Edit /etc/haproxy/haproxy.cfg
frontend lapoc
log 127.0.0.1 local0 debug
option httplog
option forwardfor
mode http
bind 172.19.65.206:80
acl apache_sub hdr(host) -i apache.gbmdc.dc
acl tomcat_sub hdr(host) -i tomcat.gbmdc.dc
use_backend apache-servers if apache_sub
use_backend tomcat-servers if tomcat_sub
backend apache-servers
mode http
option httplog
option forwardfor
server apache1 172.19.65.207:80
backend tomcat-servers
mode http
option httplog
option forwardfor
server tomcat1 172.19.65.207:8080
Enable stats
Edit /etc/haproxy/haproxy.cfg
listen stats
bind *:9000
stats enable
stats uri /
stats refresh 5s
stats auth cmorun:Manager20.
Execute:
firewall-cmd --permanent --add-port=9000/tcp
Upgrade to HA Proxy 1.8
yum-config-manager --enable rhel-server-rhscl-7-rpms yum install rh-haproxy18
You can use this commando to enable in the session:
scl enable rh-haproxy18 bash
You need to change the file /etc/opt/rh/rh-haproxy18/haproxy/haproxy.cfg to reflect changes.
Execute:
systemctl disable haproxy systemctl stop haproxy systemctl enable rh-haproxy18-haproxy systemctl start rh-haproxy18-haproxy