OpenStack Resources for NorthStar Controller Installation

Table 1 and Table 2 describe the required and optional OpenStack resources for running the NorthStar Controller in an OpenStack environment.

Table 1: Required OpenStack Resources
Resource	Description
OS::Nova::Server	Two of these resources are required: one for the NorthStar Controller application VM and one for the JunosVM.
OS::Neutron::Port	At least two of these resources are required for the Ethernet connections of each OS:Nova::Server resource.
OS::Neutron::Net	Each NorthStar installation requires one of this resource for internal communication between the NorthStar Controller application VM and the JunosVM. Connection to an existing OS::Neutron::Net resource for public network connectivity is also required.
OS::Neutron::Subnet	A fixed 172.16.16.0/24 subnet is required for internal communication between the NorthStar Controller application VM and the JunosVM.

Table 2: Optional OpenStack Resources
Resource	Description
OS::Neutron::SecurityGroup	Use this resource (either new or existing) to access the NorthStar Controller application VM and JunosVM from outside OpenStack.
OS::Neutron::FloatingIP	Use this resource if the NorthStar Controller application VM and JunosVM are connected to a virtual private network behind NAT. This resource is not usually necessary in a flat networking scenario or a private network using Contrail.
OS::Nova::ServerGroup	Use this resource with an anti-affinity rule to ensure that no more than one NorthStar Controller application VM, or no more than one JunosVM are spawned in the same compute node. This is for additional redundancy purposes.
OS::Neutron::Port for VIP	Use an additional OS::Neutron::Port for cluster setup, to provide a virtual IP address for the client facing connection.