Nova-Compute service implements the compute service, which is the main part of an IaaS cloud. Nova is responsible for launching and managing instance of virtual machines. The compute service scales horizontally on standard hardware.
In our environment, we deploy a Controller/Computes layout. In the first step, we need to configure management services on the controller node and only then to add compute nodes to the environment. On the controller node, first we need to prepare the database, create a Keystone account, then open the needed firewall ports.
Run the following steps on the controller node!
[root@controller ~]# mysql -u root -p ...