You can create tenant virtual data centers to enable secure multi-tenancy and resource allocation. These data centers can be created on different compute nodes that offer specific service level agreements for each telecommunication workload.

Important: This feature is offered in VMware Integrated OpenStack Carrier Edition only. For more information, see VMware Integrated OpenStack Licensing.

Project quotas limit OpenStack resources across multiple compute nodes or availability zones, but they do not guarantee resource availability. By creating a tenant virtual data center to allocate CPU and memory for an OpenStack project on a compute node, you provide a resource guarantee for tenants and avoid noisy neighbor scenarios in a multi-tenant environment.

The tenant virtual data center allocates resources at the compute node level. You can also allocate resources on the virtual network function (VNF) level using the same flavor. For instructions, see Configure QoS Resource Allocation for Instances.

You can manage tenant virtual data centers using the viocli utility, vAPI, or Data Center Command-Line Interface (DCLI). This procedure uses the viocli utility as an example. For information about vAPI or DCLI usage, see Using the Tenant Virtual Data Center vAPIs.

Prerequisites

  • Determine the UUID of the project under which you want to create the tenant virtual data center. You can find project UUIDs by running the openstack project list command.
  • Determine the name of the compute node on which you want to create the tenant virtual data center. You can find the names of compute nodes by running the openstack compute service list command.

Procedure

  1. Log in to the OpenStack Management Server as viouser.
  2. Create a tenant virtual data center. 
    viocli inventory-admin create-tenant-vdc --project-id project-uuid --compute compute-node --name display-name [-–cpu-limit max-cpu-mhz] [--cpu-reserve min-cpu-mhz] [--mem-limit max-memory-mb] [-–mem-reserve min-memory-mb]
  3. Log in to the VMware Integrated OpenStack dashboard as a cloud administrator.
  4. Select the admin project from the drop-down menu in the title bar.
  5. Configure a flavor to use the tenant virtual data center.
    1. Select Admin > Compute > Flavors.
    2. Create a new flavor or choose an existing flavor to use for passthrough.
    3. Select Update Metadata next to the flavor that you want to use.
    4. In the Available Metadata pane, expand VMware Policies and click the Add (plus sign) icon next to Tenant Virtual Datacenter.
    5. Set the value of vmware:tenant_vdc to the UUID of the tenant virtual data center and click Save.
      You can run the viocli inventory-admin list-tenant-vdcs command on the OpenStack Management Server to find the UUID of all tenant virtual data centers.

Results

The tenant virtual data center is created. You can now launch instances in the tenant virtual data center by configuring them with the flavor that you modified in this procedure.

What to do next

You can display the resource pools in a tenant virtual data center by running the viocli inventory-admin show-tenant-vdc --id tvdc-uuid command. Each resource pool is listed with its provider ID, project ID, status, minimum and maximum CPU, minimum and maximum memory, and compute node information. If a tenant virtual data center includes multiple resource pools, the first row displays aggregate information for all pools.

You can update your tenant virtual data centers by running the viocli inventory-admin update-tenant-vdc command. For specific parameters, see viocli inventory-admin Command.

You can delete an unneeded tenant virtual data center by running the viocli inventory-admin delete-tenant-vdc --id tvdc-uuid command.