openstack/openstack-ansible
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Merge "Clarify HAProxy configuration necessity"

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Jenkins 2016-03-03 18:42:32 +00:00 committed by Gerrit Code Review
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doc/source/install-guide/configure-haproxy.rst
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Configuring HAProxy (optional)
------------------------------
For evaluation, testing, and development, HAProxy can temporarily
provide load balancing services in lieu of hardware load balancers. The
default HAProxy configuration does not provide highly-available load
balancing services. For production deployments, deploy a hardware load
balancer prior to deploying OSA.
HAProxy provides load balancing for high availability architectures deployed by
OpenStack-Ansible. The default HAProxy configuration provides highly-available
load balancing services via keepalived if there are more than one hosts in the
``haproxy_hosts`` group.
.. note::
A load balancer is required for a successful installation. Deployers may
prefer to make use of hardware load balancers instead of haproxy. If hardware
load balancers are used then the load balancing configuration for services must
be implemented prior to executing the deployment.
To deploy HAProxy within your OpenStack-Ansible environment, define target
hosts which should run HAProxy: