Skip to content

Latest commit

 

History

History
199 lines (160 loc) · 5.25 KB

quickstart.md

File metadata and controls

199 lines (160 loc) · 5.25 KB
Raw

Quickstart Guide

Prerequisites

  1. Kubernetes of Openshift cluster running on bare metal nodes.
  2. Multus-cni is deployed as default CNI plugin, and there is a default CNI plugin (flannel, openshift-sdn etc.) available for Multus-cni.

Installation

Firstly, clone this GitHub repository.

go get github.com/openshift/sriov-network-operator

Install the Operator-SDK. The following commands will put operator-sdk to your $GOPATH/bin, please make sure that path is included in your $PATH.

cd $GOPATH/github.com/openshift/sriov-network-operator
make deploy-setup

Deploy the operator.

make deploy-setup

By default, the operator will be deployed in namespace 'sriov-network-operator', you can check if the deployment is finished successfully.

$ kubectl get -n sriov-network-operator all
NAME                                          READY   STATUS    RESTARTS   AGE
pod/sriov-network-config-daemon-bf9nt         1/1     Running   0          8s
pod/sriov-network-operator-54d7545f65-296gb   1/1     Running   0          10s

NAME                             TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)    AGE
service/sriov-network-operator   ClusterIP   10.102.53.223   <none>        8383/TCP   9s

NAME                                         DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR                                                 AGE
daemonset.apps/sriov-network-config-daemon   1         1         1       1            1           beta.kubernetes.io/os=linux,node-role.kubernetes.io/worker=   8s

NAME                                     READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/sriov-network-operator   1/1     1            1           10s

NAME                                                DESIRED   CURRENT   READY   AGE
replicaset.apps/sriov-network-operator-54d7545f65   1         1         1       10s

Configuration

After the operator gets installed, you can configure it with creating the custom resource of SriovNetwork and SriovNetworkNodePolicy. But before that, you may want to check the status of SriovNetworkNodeState CRs to find out all the SRIOV capable devices in you cluster.

Here comes an example. As you can see, there are 2 SR-IOV NICs from Intel.

$ oc get sriovnetworknodestates.sriovnetwork.openshift.io -n sriov-network-operator node-1 -o yaml

apiVersion: sriovnetwork.openshift.io/v1
kind: SriovNetworkNodeState
spec: ...
status:
  interfaces:
  - deviceID: "1572"
    driver: i40e
    mtu: 1500
    pciAddress: "0000:18:00.0"
    totalvfs: 64
    vendor: "8086"
  - deviceID: "1572"
    driver: i40e
    mtu: 1500
    pciAddress: "0000:18:00.1"
    totalvfs: 64
    vendor: "8086"

You can choose the NIC you want when creating SriovNetworkNodePolicy CR, by specifying the 'nicSelector'.

apiVersion: sriovnetwork.openshift.io/v1
kind: SriovNetworkNodePolicy
metadata:
  name: policy-1
  namespace: sriov-network-operator
spec:
  resourceName: intelnics
  priority: 99
  mtu: 9000
  numVfs: 2
  nicSelector:
      deviceID: "1572"
      rootDevices:
      - 0000:18:00.1
      vendor: "8086"
  deviceType: netdevice

After applying your SriovNetworkNodePolicy CR, check the status of SriovNetworkNodeState again, you should be able to see the NIC has been configured as instructed.

$ oc get sriovnetworknodestates.sriovnetwork.openshift.io -n sriov-network-operator node-1 -o yaml

...
- Vfs:
    - deviceID: 1572
      driver: iavf
      pciAddress: 0000:18:02.0
      vendor: "8086"
    - deviceID: 1572
      driver: iavf
      pciAddress: 0000:18:02.1
      vendor: "8086"
    - deviceID: 1572
      driver: iavf
      pciAddress: 0000:18:02.2
      vendor: "8086"
    deviceID: "1583"
    driver: i40e
    mtu: 1500
    numVfs: 3
    pciAddress: 0000:18:00.0
    totalvfs: 64
    vendor: "8086"
...

At the same time, the SRIOV device plugin and CNI plugin has been provisioned to the worker node. You may check if resource name 'intel-nics' is reported by device plugin correctly.

$ kubectl get no -o json | jq -r '[.items[] | {name:.metadata.name, allocable:.status.allocatable}]'
[
  {
    "name": "minikube",
    "allocable": {
      "cpu": "72",
      "ephemeral-storage": "965895780801",
      "hugepages-1Gi": "0",
      "hugepages-2Mi": "0",
      "intel.com/intel-nics": "3",
      "memory": "196706684Ki",
      "openshift.io/sriov": "0",
      "pods": "110"
    }
  }
]

Now you can create a SriovNetwork CR which refer to the 'resourceName' defined in SriovNetworkNodePolicy. Then a NetworkAttachementDefinition CR will be generated by operator with the same name and namespace.

Here is an example:

apiVersion: sriovnetwork.openshift.io/v1
kind: SriovNetwork
metadata:
  name: example-sriovnetwork
  namespace: sriov-network-operator
spec:
  ipam: | 
    {
      "type": "host-local",
      "subnet": "10.56.217.0/24",
      "rangeStart": "10.56.217.171",
      "rangeEnd": "10.56.217.181",
      "routes": [{
        "dst": "0.0.0.0/0"
      }],
      "gateway": "10.56.217.1"
    }
  vlan: 0
  resourceName: intelnics

To remove the operator related resources.

make undeploy

Hack

To run the operator locally.

make run

To run the e2e test.

make test-e2e

To build the binary.

make build