Using GRE based Neutron Networking with Rackspace Private Cloud

If you have used the environment file that was given in the previous post, then we are setting up Neutron/Quantum Networking. By default Rackspace Private Cloud cookbooks setup VLAN based networks. To setup a GRE network, you must also add a network_type attribute in your environment file.

"override_attributes": {
    "nova": {
        "network": {
            "provider": "quantum"
        }
    },
    "quantum": {
        "ovs": {
            "network_type": "gre"
        }
    }
}

The environment file will now look as below:

root@chef-workstation:~/chef-cookbooks/environments# cat grizzly-quantum-1.json 
{
  "name": "grizzly-quantum-1",
  "description": "Chef-server Grizzly Quantum Multinode environment",
  "json_class": "Chef::Environment",
  "chef_type": "environment",
  "override_attributes": {
    "nova": {
      "libvirt": { "virt_type": "qemu" },
      "network": {
        "provider": "quantum"
      }
    },
    "quantum": {
         "ovs": {
              "network_type": "gre"
         }
    }, 
    "mysql": {
      "allow_remote_root": true,
      "root_network_acl": "%",
      "server_root_password": "fr3sca",
      "server_debian_password": "fr3sca"
    },
    "osops_networks": {
      "nova": "10.112.252.0/24",
      "public": "10.112.252.0/24",
      "management": "10.112.252.0/24"
    }
  }
}

After making this change to the environment file, upload the environment file to the Chef-Server:

# knife environment from file grizzly-quantum-1.json

Now run the chef-client on the nodes: Controller, Network and Compute. Once the chef-client runs on the nodes, the Neutron Networking will be setup to use GRE instead of VLAN for Networking.