131 lines
8.1 KiB
Markdown
131 lines
8.1 KiB
Markdown
# SR-IOV Network Operator Helm Chart
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SR-IOV Network Operator Helm Chart provides an easy way to install, configure and manage
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the lifecycle of SR-IOV network operator.
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## SR-IOV Network Operator
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SR-IOV Network Operator leverages [Kubernetes CRDs](https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/)
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and [Operator SDK](https://github.com/operator-framework/operator-sdk) to configure and manage SR-IOV networks in a Kubernetes cluster.
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SR-IOV Network Operator features:
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- Initialize the supported SR-IOV NIC types on selected nodes.
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- Provision/upgrade SR-IOV device plugin executable on selected node.
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- Provision/upgrade SR-IOV CNI plugin executable on selected nodes.
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- Manage configuration of SR-IOV device plugin on host.
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- Generate net-att-def CRs for SR-IOV CNI plugin
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- Supports operation in a virtualized Kubernetes deployment
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- Discovers VFs attached to the Virtual Machine (VM)
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- Does not require attached of associated PFs
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- VFs can be associated to SriovNetworks by selecting the appropriate PciAddress as the RootDevice in the SriovNetworkNodePolicy
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## QuickStart
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### Prerequisites
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- Kubernetes v1.17+
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- Helm v3
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### Install Helm
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Helm provides an install script to copy helm binary to your system:
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```
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$ curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3
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$ chmod 500 get_helm.sh
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$ ./get_helm.sh
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```
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For additional information and methods for installing Helm, refer to the official [helm website](https://helm.sh/)
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### Deploy SR-IOV Network Operator
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```
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# Install Operator
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$ helm install -n sriov-network-operator --create-namespace --wait sriov-network-operator ./
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# View deployed resources
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$ kubectl -n sriov-network-operator get pods
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```
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In the case that [Pod Security Admission](https://kubernetes.io/docs/concepts/security/pod-security-admission/) is enabled, the sriov network operator namespace will require a security level of 'privileged'
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```
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$ kubectl label ns sriov-network-operator pod-security.kubernetes.io/enforce=privileged
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```
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## Chart parameters
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In order to tailor the deployment of the network operator to your cluster needs
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We have introduced the following Chart parameters.
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| Name | Type | Default | description |
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| ---- |------|---------|-------------|
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| `imagePullSecrets` | list | `[]` | An optional list of references to secrets to use for pulling any of the SR-IOV Network Operator image |
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| `supportedExtraNICs` | list | `[]` | An optional list of whitelisted NICs |
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### Operator parameters
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| Name | Type | Default | description |
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| ---- | ---- | ------- | ----------- |
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| `operator.tolerations` | list | `[{"key":"node-role.kubernetes.io/master","operator":"Exists","effect":"NoSchedule"},{"key":"node-role.kubernetes.io/control-plane","operator":"Exists","effect":"NoSchedule"}]` | Operator's tolerations |
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| `operator.nodeSelector` | object | {} | Operator's node selector |
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| `operator.affinity` | object | `{"nodeAffinity":{"preferredDuringSchedulingIgnoredDuringExecution":[{"weight":1,"preference":{"matchExpressions":[{"key":"node-role.kubernetes.io/master","operator":"In","values":[""]}]}},{"weight":1,"preference":{"matchExpressions":[{"key":"node-role.kubernetes.io/control-plane","operator":"In","values":[""]}]}}]}}` | Operator's afffinity configuration |
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| `operator.nameOverride` | string | `` | Operator's resource name override |
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| `operator.fullnameOverride` | string | `` | Operator's resource full name override |
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| `operator.resourcePrefix` | string | `openshift.io` | Device plugin resource prefix |
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| `operator.cniBinPath` | string | `/opt/cni/bin` | Path for CNI binary |
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| `operator.clustertype` | string | `kubernetes` | Cluster environment type |
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#### Admission Controllers parameters
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The admission controllers can be enabled by switching on a single parameter `operator.admissionControllers.enabled`. By
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default, the user needs to pre-create Kubernetes Secrets that match the names provided in
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`operator.admissionControllers.certificates.secretNames`. The secrets should have 3 fields populated with the relevant
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content:
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* `ca.crt` (value needs to be base64 encoded twice)
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* `tls.crt`
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* `tls.key`
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Aside from the aforementioned mode, the chart supports 3 more modes for certificate consumption by the admission
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controllers, which can be found in the table below. In a nutshell, the modes that are supported are:
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* Consume pre-created Certificates managed by cert-manager
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* Generate self signed Certificates managed by cert-manager
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* Specify the content of the certificates as Helm values
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| Name | Type | Default | description |
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| ---- | ---- | ------- | ----------- |
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| `operator.admissionControllers.enabled` | bool | false | Flag that switches on the admission controllers |
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| `operator.admissionControllers.certificates.secretNames.operator` | string | `operator-webhook-cert` | Secret that stores the certificate for the Operator's admission controller |
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| `operator.admissionControllers.certificates.secretNames.injector` | string | `network-resources-injector-cert` | Secret that stores the certificate for the Network Resources Injector's admission controller |
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| `operator.admissionControllers.certificates.certManager.enabled` | bool | false | Flag that switches on consumption of certificates managed by cert-manager |
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| `operator.admissionControllers.certificates.certManager.generateSelfSigned` | bool | false | Flag that switches on generation of self signed certificates managed by cert-manager. The secrets in which the certificates are stored will have the names provided in `operator.admissionControllers.certificates.secretNames` |
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| `operator.admissionControllers.certificates.custom.enabled` | bool | false | Flag that switches on consumption of user provided certificates that are part of `operator.admissionControllers.certificates.custom.operator` and `operator.admissionControllers.certificates.custom.injector` objects |
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| `operator.admissionControllers.certificates.custom.operator.caCrt` | string | `` | The CA certificate to be used by the Operator's admission controller |
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| `operator.admissionControllers.certificates.custom.operator.tlsCrt` | string | `` | The public part of the certificate to be used by the Operator's admission controller |
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| `operator.admissionControllers.certificates.custom.operator.tlsKey` | string | `` | The private part of the certificate to be used by the Operator's admission controller |
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| `operator.admissionControllers.certificates.custom.injector.caCrt` | string | `` | The CA certificate to be used by the Network Resources Injector's admission controller |
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| `operator.admissionControllers.certificates.custom.injector.tlsCrt` | string | `` | The public part of the certificate to be used by the Network Resources Injector's admission controller |
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| `operator.admissionControllers.certificates.custom.injector.tlsKey` | string | `` | The private part of the certificate to be used by the Network Resources Injector's admission controller |
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### SR-IOV Operator Configuration Parameters
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This section contains general parameters that apply to both the operator and daemon componets of SR-IOV Network Operator.
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| Name | Type | Default | description |
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| ---- | ---- | ------- | ----------- |
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| `sriovOperatorConfig.deploy` | bool | `false` | deploy SriovOperatorConfig custom resource |
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| `sriovOperatorConfig.configDaemonNodeSelector` | map[string]string | `{}` | node slectors for sriov-network-config-daemon |
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| `sriovOperatorConfig.logLevel` | int | `2` | log level for both operator and sriov-network-config-daemon |
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| `sriovOperatorConfig.disableDrain` | bool | `false` | disable node draining when configuring SR-IOV, set to true in case of a single node cluster or any other justifiable reason |
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| `sriovOperatorConfig.configurationMode` | string | `daemon` | sriov-network-config-daemon configuration mode. either `daemon` or `systemd` |
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### Images parameters
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| Name | description |
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| ---- | ----------- |
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| `images.operator` | Operator controller image |
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| `images.sriovConfigDaemon` | Daemon node agent image |
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| `images.sriovCni` | SR-IOV CNI image |
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| `images.ibSriovCni` | InfiniBand SR-IOV CNI image |
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| `images.sriovDevicePlugin` | SR-IOV device plugin image |
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| `images.resourcesInjector` | Resources Injector image |
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| `images.webhook` | Operator Webhook image |
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