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Chapter 6. Load Balancing Satellite Proxy Servers
Some environments include a load balancer between Satellite clients and Satellite proxies to distribute the load of Satellite requests, or to help redirect requests to a location closer to the originating client. If the Satellite Proxy topology becomes more complex, includes CNAME support, chaining, and so on, it is helpful to test the HTTP header requests exchanged between load balancers and round-robin proxy chains. This chapter describes configuring Squid as a reverse proxy to perform round-robin requests between two Satellite proxies. It covers the set up procedure and how to support both non-SSL and SSL proxy requests.
The following environment in this example would use five different hosts:
- Red Hat Satellite Proxy A, signified with IP address
192.168.100.16and hostnameproxya.example.com - Red Hat Satellite Proxy B, signified with IP address
192.168.100.17and hostnameproxyb.example.com - Load Balancer, signified with hostname
lb.example.com - Red Hat Satellite Server with Red Hat Satellite Proxy A and B connected
- The client machine, signified with IP address
192.168.100.19
6.1. Installing Proxy Services to the Load Balancer
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The Load Balancer requires some of the same services as the Red Hat Satellite Proxy. Use the following commands to install and configure these services:
yum install spacewalk-proxy-installer -y configure-proxy.sh
# yum install spacewalk-proxy-installer -y
# configure-proxy.sh
Important
Register your Load Balancer to the Red Hat Satellite 5 server and subscribe to the
rhn-tools-rhel-x86_64-server-6 channel to access the spacewalk-proxy-installer package.
When the installation completes, uninstall the
httpd package and its dependencies.
yum remove httpd -y
# yum remove httpd -y
This readies the server for configuring the load balancing services.
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