Chapter 5. Installing the Load Balancer
The following example provides general guidance for configuring an HAProxy load balancer using Red Hat Enterprise Linux 8 server. However, you can install any suitable load balancing software solution that supports TCP forwarding.
Procedure
Install HAProxy:
# dnf install haproxy
Install the following package that includes the
semanage
tool:# dnf install policycoreutils-python-utils
Configure SELinux to allow HAProxy to bind any port:
# semanage boolean --modify --on haproxy_connect_any
Configure the load balancer to balance the network load for the ports as described in Table 5.1, “Ports Configuration for the Load Balancer”. For example, to configure ports for HAProxy, edit the
/etc/haproxy/haproxy.cfg
file to correspond with the table. For more information, see Configuration example for haproxy.cfg for HAProxy load balancer with Satellite 6 in the Red Hat Knowledgebase.Table 5.1. Ports Configuration for the Load Balancer Service Port Mode Balance Mode Destination HTTP
80
TCP
roundrobin
port 80 on all Capsule Servers
HTTPS and RHSM
443
TCP
source
port 443 on all Capsule Servers
AMQP
5647
TCP
roundrobin
port 5647 on all Capsule Servers
Puppet (Optional)
8140
TCP
roundrobin
port 8140 on all Capsule Servers
PuppetCA (Optional)
8141
TCP
roundrobin
port 8140 only on the system where you configure Capsule Server to sign Puppet certificates
SmartProxy (Optional for OpenScap)
9090
TCP
roundrobin
port 9090 on all Capsule Servers
- Configure the load balancer to disable SSL offloading and allow client-side SSL certificates to pass through to back end servers. This is required because communication from clients to Capsule Servers depends on client-side SSL certificates.
Start and enable the HAProxy service:
# systemctl enable --now haproxy