HA Prepare
Create Local Repository
Create Local NTP
Install CentOS & Configure
Memcached on Multiple Servers
MariaDB Galera Cluster
RabbitMQ Cluster Setup
Pacemaker Cluster Stack
Configure the VIP & HAProxy
Highly available Identity API
Highly available Image API
Highly available Block Storage API
Linux Bridge & L3 HA
Highly available Nova API
Highly available Horizon API
Make the Compute nodes Highly Available