Extending OpenStack

Empowering the compute service

In this section, we will add a new compute host to our first initial OpenStack environment using Ansible. The new compute node will have similar hardware requirements to the first compute node, as follows:

• Memory: At least 4 GB RAM
• Processor: At least 4 64-bit x86 CPUs 
• Disk space: At least 40 GB free disk space
• Network: At least two NICs

The following excerpt will be added to the vagrant file in our test environment:

    ...
    # Compute Node
    config.vm.define :cn02 do |cn02|
      cn02.vm.hostname= "cn02"
      cn02.vm.provider "virtualbox" do |vb|
              vb.customize ["modifyvm", :id, "--memory", "4096"]
              vb.customize ["modifyvm", :id, "--cpus", "4"]
                 vb.customize ["modifyvm", :id, "--nicpromic2", "allow-all"]
          end
    end 

The following ...