NVIDIA Docs Hub Homepage NVIDIA Networking Networking Software Cloud Orchestration NVIDIA Network Operator v26.4.0 Host Device Network with RDMA

Host Device Network with RDMA

Note

You can automate the configuration of this use case with NVIDIA Kubernetes Launch Kit. For more details, see Configuration Assistance with Kubernetes Launch Kit.

Step 1: Create NicClusterPolicy with host device support

Copy
Copied!

            
            apiVersion: mellanox.com/v1alpha1
kind: NicClusterPolicy
metadata:
  name: nic-cluster-policy
spec:
  sriovDevicePlugin:
    image: sriov-network-device-plugin
    repository: nvcr.io/nvidia/mellanox
    version: network-operator-v26.4.0
    config: |
      {
        "resourceList": [
          {
            "resourcePrefix": "nvidia.com",
            "resourceName": "hostdev",
            "selectors": {
              "vendors": ["15b3"],
              "isRdma": true
            }
          }
        ]
      }
  nvIpam:
    image: nvidia-k8s-ipam
    repository: nvcr.io/nvidia/mellanox
    version: network-operator-v26.4.0
    imagePullSecrets: []
    enableWebhook: false
  secondaryNetwork:
    cniPlugins:
      image: plugins
      repository: nvcr.io/nvidia/mellanox
      version: network-operator-v26.4.0
    multus:
      image: multus-cni
      repository: nvcr.io/nvidia/mellanox
      version: network-operator-v26.4.0

Copy
Copied!

            
            kubectl apply -f nicclusterpolicy.yaml

Step 2: Create IPPool for nv-ipam

Copy
Copied!

            
            apiVersion: nv-ipam.nvidia.com/v1alpha1
kind: IPPool
metadata:
  name: hostdev-pool
  namespace: nvidia-network-operator
spec:
  subnet: 192.168.3.0/24
  perNodeBlockSize: 50
  gateway: 192.168.3.1

Copy
Copied!

            
            kubectl apply -f ippool.yaml

Step 3: Create HostDeviceNetwork

Copy
Copied!

            
            apiVersion: mellanox.com/v1alpha1
kind: HostDeviceNetwork
metadata:
  name: hostdev-net
spec:
  networkNamespace: "default"
  resourceName: "hostdev"
  ipam: |
    {
      "type": "nv-ipam",
      "poolName": "hostdev-pool"
    }

Copy
Copied!

            
            kubectl apply -f hostdevicenetwork.yaml

Step 4: Deploy test workload

Copy
Copied!

            
            apiVersion: v1
kind: Pod
metadata:
  name: hostdev-test-pod
  annotations:
    k8s.v1.cni.cncf.io/networks: hostdev-net
spec:
  containers:
  - name: test-container
    image: mellanox/rping-test
    command: ["/bin/bash", "-c", "sleepinfinity"]
    securityContext:
      capabilities:
        add: ["IPC_LOCK"]
    resources:
      requests:
        nvidia.com/hostdev: '1'
      limits:
        nvidia.com/hostdev: '1'

Copy
Copied!

            
            kubectl apply -f pod.yaml

Verify the deployment:

Copy
Copied!

            
            kubectl exec -it hostdev-test-pod -- lspci | grep Mellanox

Complete Configuration

Copy
Copied!

            
            apiVersion: mellanox.com/v1alpha1
kind: NicClusterPolicy
metadata:
  name: nic-cluster-policy
spec:
  sriovDevicePlugin:
    image: sriov-network-device-plugin
    repository: nvcr.io/nvidia/mellanox
    version: network-operator-v26.4.0
    config: |
      {
        "resourceList": [
          {
            "resourcePrefix": "nvidia.com",
            "resourceName": "hostdev",
            "selectors": {
              "vendors": ["15b3"],
              "isRdma": true
            }
          }
        ]
      }
  nvIpam:
    image: nvidia-k8s-ipam
    repository: nvcr.io/nvidia/mellanox
    version: network-operator-v26.4.0
    imagePullSecrets: []
    enableWebhook: false
  secondaryNetwork:
    cniPlugins:
      image: plugins
      repository: nvcr.io/nvidia/mellanox
      version: network-operator-v26.4.0
    multus:
      image: multus-cni
      repository: nvcr.io/nvidia/mellanox
      version: network-operator-v26.4.0
---
apiVersion: nv-ipam.nvidia.com/v1alpha1
kind: IPPool
metadata:
  name: hostdev-pool
  namespace: nvidia-network-operator
spec:
  subnet: 192.168.3.0/24
  perNodeBlockSize: 50
  gateway: 192.168.3.1
---
apiVersion: mellanox.com/v1alpha1
kind: HostDeviceNetwork
metadata:
  name: hostdev-net
spec:
  networkNamespace: "default"
  resourceName: "hostdev"
  ipam: |
    {
      "type": "nv-ipam",
      "poolName": "hostdev-pool"
    }
---
apiVersion: v1
kind: Pod
metadata:
  name: hostdev-test-pod
  annotations:
    k8s.v1.cni.cncf.io/networks: hostdev-net
spec:
  containers:
  - name: test-container
    image: mellanox/rping-test
    command: ["/bin/bash", "-c", "sleepinfinity"]
    securityContext:
      capabilities:
        add: ["IPC_LOCK"]
    resources:
      requests:
        nvidia.com/hostdev: '1'
      limits:
        nvidia.com/hostdev: '1'

Previous Deploy SR-IOV Network with RDMA

Next Deploy IP over InfiniBand with RDMA Shared Device