OpenSDN deployment prerequisites

Before you proceed with the actual OpenSDN, formerly Tungsten Fabric (TF), deployment, verify that your deployment meets the following prerequisites:

  1. Your MOSK OpenStack cluster is deployed as described in Deploy an OpenStack cluster with the OpenSDN backend enabled for Neutron using the following structure:

    spec:
  features:
    neutron:
      backend: tungstenfabric

  2. Your MOSK OpenStack cluster uses the correct value of features:neutron:tunnel_interface in the openstackdeployment object. The TF Operator will consume this value through the shared secret and use it as a network interface from the underlay network to create encapsulated tunnels with the tenant networks.

    Considerations for tunnel_interface

    • Plan this interface as a dedicated physical interface for TF overlay networks. TF uses features:neutron:tunnel_interface to create the vhost0 virtual interface and transfers the IP configuration from the tunnel_interface to the virtual one.

    • Do not use bridges from L2 templates as tunnel_interface. Such usage might lead to networking performance degradation and data plane downtime.

  3. The Kubernetes nodes are labeled according to the TF node roles:

    Tungsten Fabric (TF) node roles

    Node role

    Description

    Kubernetes labels

    Minimal count

    TF control plane

    Hosts the TF control plane services such as database, messaging, api, svc, config.
    tfconfig=enabled
    tfcontrol=enabled
    tfwebui=enabled
    tfconfigdb=enabled

    3

    TF vRouter

    Hosts the TF vRouter module and vRouter Agent.
    tfvrouter=enabled

    Varies

    Note

    TF supports only Kubernetes OpenStack workloads. Therefore, you should label OpenStack compute nodes with the tfvrouter=enabled label.

    Note

    Do not specify the openvswitch=enabled label for the OpenStack deployments with TF as a networking backend.

See also

Create an L2 template for a MOSK compute node