KubeNetLab#

KubeNetLab (KNL) is a k8s operator creates and manages virtual network topology consists of VNF/CNF for learning and testing purposes.

KNL has following key features:

Running on top of k8s with capability of to scale out to entire k8s cluster. e.g. a single lab topology could span across multiple servers.
Topology is defined via KNL Lab CR, standard k8s tool like kubectl or k9s could be used to create/manage labs, while KNL cli tool knlcli provides more user friendly CLI operations.
Supports both container and VM, following are node types supported today:
- Nokia vSIM
- Nokia SR-SIM
- Nokia VSR-I
- Nokia MAG-c
- Nokia SRLinux
- General Virtual Machine
- General pod
Supports saving/loading configuration for certain CNF/VNF

Follow YAML defines a simple example-lab contains a Nokia SR-SIM and a Nokia vSIM, with default chassis configuration, connects to each other via a virtual link link1.

apiVersion: knl.kubenetlab.net/v1beta1
kind: Lab
metadata:
    name: example-lab
    namespace: knl-system
spec:
  links:
    link1:
      nodes:
      - node: vsim-1
      - node: srl-1
    link2:
      nodes:
      - node: srl-1
      - node: srsim-1
    link3:
      nodes:
      - node: srsim-1
      - node: vsim-1

Use KNL command line tool knlcli to check the created Lab

user@svr-1:~$ knlcli show -v
example-lab:
   Node      Type    Chassis                           Pods                                       Worker/PodIP
   srl-1     SRL     ixr-d3l                           example-lab-srl-1                          worker-2/10.244.0.137
   srsim-1   SRSIM   SR-7                              example-lab-srsim-1                        worker-1/10.244.3.77
   vsim-1    VSIM    SR-7                              virt-launcher-example-lab-vsim-1-1-nprdm   worker-3/10.244.2.91
                                                       virt-launcher-example-lab-vsim-1-a-vqjqq   worker-3/10.244.2.90
   Link      Nodes    Port
   link1     vsim-1
             srl-1
   link2     srl-1
             srsim-1
   link3     srsim-1
             vsim-1

Note
Three lab nodes(srsim-1, vsim-1 and srl-1) run on three different servers (worker-1 to worker-3), and 3 links span across all servers.

Use knlcli topo show the topology in visualized format:

user@svr-1:~$ knlcli topo example-lab
    ┌───────┐
    │vsim-1 │
    │       │
    └───────┘
        │  │
        │  └─┐
        │    │
 ┌──────┐    │
 │srl-1 │    │
 │      │    │
 └──────┘    │
        │    │
        │  ┌─┘
        │  │
    ┌────────┐
    │srsim-1 │
    │        │
    └────────┘