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Deployment.md

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Deployment

VPP Agent can run on any server where VPP is installed. It can run on bare metal, in a VM, or in a container.

Benefits of putting a VPP-based VNF (bascially, just VPP and the VPP Agent) into a container are:

  • simplified upgrades and bringup/shutdown, and better scaling
  • Container-based VNFs are in essence data plane lightweight and reusable data plane microservices which can be used to build lrger systems and applications
  • supports container healing

K8s integration

The following diagram shows VPP deployement in:

  • Data Plane vSwitch
  • Control Plane vSwitch (TBD Contiv integration)
  • VPP VNF Container
  • Non-VPP Container

K8s integration

K8s:

  • starts/stops the containers on multiple hosts
  • checks containers health (using probes - HTTP calls)

NB (Nort-bound) configuration vs. deployment

VPP + Agent can be deployed in different environments. Several deployment alternatives are briefly described in the following sub-chapters. Regardless of the deployment, the VPP Agent can be configured using the same Client v1 interface. There are three different implementations of the interface:

  • local client
  • remote client using Data Broker
  • remote client using GRPC

Key Value Data Store for NB

The Control Plane using remote client writes configuration to the Data Store (tested with ETCD, Redis). VPP Agent watches particular key prefixes in Data Store using dbsync package.

deployment with data store TBD links to the code

GRPC

The Control Plane using remote client sends configuration to the Data Store (tested with ETCD, Redis). VPP Agent watches particular key prefixes in Data Store using grpcsync package.

grpc northbound TBD links to the code

Embedded deployment

VPP Agent can be embedded in a different project. For integration with Contiv we use the embedded deployment. In this case the VPP Agent gets the configuration from Local client v1 through in-memory calls (Go API).

embeded deployment TBD links to the code