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A.4. Install and Configure HAProxy
Perform the following procedure on your two HAProxy nodes:
- Install
haproxy.#
yum install haproxy - Configure
haproxyfor SELinux and HTTP.#
vim /etc/firewalld/services/haproxy-http.xmlAdd the following lines:<?xml version="1.0" encoding="utf-8"?> <service> <short>HAProxy-HTTP</short> <description>HAProxy load-balancer</description> <port protocol="tcp" port="80"/> </service>
As root, assign the correct SELinux context and file permissions to thehaproxy-http.xmlfile.#
cd /etc/firewalld/services#restorecon haproxy-http.xml#chmod 640 haproxy-http.xml - If you intend to use HTTPS, configure
haproxyfor SELinux and HTTPS.#
vim /etc/firewalld/services/haproxy-https.xmlAdd the following lines:<?xml version="1.0" encoding="utf-8"?> <service> <short>HAProxy-HTTPS</short> <description>HAProxy load-balancer</description> <port protocol="tcp" port="443"/> </service>
As root, assign the correct SELinux context and file permissions to thehaproxy-https.xmlfile.#
cd /etc/firewalld/services#restorecon haproxy-https.xml#chmod 640 haproxy-https.xml - If you intend to use HTTPS, generate keys for SSL. If you do not have a certificate, you may use a self-signed certificate. For information on generating keys and on self-signed certificates, see the Red Hat Enterprise Linux System Administrator's Guide.Finally, put the certificate and key into a PEM file.
#
cat example.com.crt example.com.key > example.com.pem#cp example.com.pem /etc/ssl/private/ - Configure HAProxy.
#
vim /etc/haproxy/haproxy.cfgTheglobalanddefaultssections ofhaproxy.cfgmay remain unchanged. After thedefaultssections, you will need to configurefrontendandbackendsections, as in the following example:frontend http_web *:80 mode http default_backend rgw frontend rgw-https bind <insert vip ipv4>:443 ssl crt /etc/ssl/private/example.com.pem default_backend rgw backend rgw balance roundrobin mode http server rgw1 10.0.0.71:80 check server rgw2 10.0.0.80:80 check - Enable/start
haproxy#
systemctl enable haproxy#systemctl start haproxy
