Deployment with Helm
Table of contents
Node Feature Discovery Helm chart allow to easily deploy and manage NFD.
NOTE: NFD is not ideal for other Helm charts to depend on as that may result in multiple parallel NFD deployments in the same cluster which is not fully supported by the NFD Helm chart.
Prerequisites
Helm package manager should be installed.
Deployment
To install the latest stable version:
export NFD_NS=node-feature-discovery
helm repo add nfd https://kubernetes-sigs.github.io/node-feature-discovery/charts
helm repo update
helm install nfd/node-feature-discovery --namespace $NFD_NS --create-namespace --generate-name
To install the latest development version you need to clone the NFD Git repository and install from there.
git clone https://github.com/kubernetes-sigs/node-feature-discovery/
cd node-feature-discovery/deployment/helm
export NFD_NS=node-feature-discovery
helm install node-feature-discovery ./node-feature-discovery/ --namespace $NFD_NS --create-namespace
See the configuration section below for instructions how to alter the deployment parameters.
In order to deploy the minimal image you need to override the image tag:
helm install node-feature-discovery ./node-feature-discovery/ --set image.tag=v0.12.5-minimal --namespace $NFD_NS --create-namespace
Configuration
You can override values from values.yaml and provide a file with custom values:
export NFD_NS=node-feature-discovery
helm install nfd/node-feature-discovery -f <path/to/custom/values.yaml> --namespace $NFD_NS --create-namespace
To specify each parameter separately you can provide them to helm install command:
export NFD_NS=node-feature-discovery
helm install nfd/node-feature-discovery --set nameOverride=NFDinstance --set master.replicaCount=2 --namespace $NFD_NS --create-namespace
Uninstalling the chart
To uninstall the node-feature-discovery deployment:
export NFD_NS=node-feature-discovery
helm uninstall node-feature-discovery --namespace $NFD_NS
The command removes all the Kubernetes components associated with the chart and deletes the release.
Chart parameters
In order to tailor the deployment of the Node Feature Discovery to your cluster needs We have introduced the following Chart parameters.
General parameters
| Name | Type | Default | description |
|---|---|---|---|
image.repository | string | registry.k8s.io/nfd/node-feature-discovery | NFD image repository |
image.tag | string | v0.12.5 | NFD image tag |
image.pullPolicy | string | Always | Image pull policy |
imagePullSecrets | list | [] | ImagePullSecrets is an optional list of references to secrets in the same namespace to use for pulling any of the images used by this PodSpec. If specified, these secrets will be passed to individual puller implementations for them to use. For example, in the case of docker, only DockerConfig type secrets are honored. More info |
nameOverride | string | Override the name of the chart | |
fullnameOverride | string | Override a default fully qualified app name | |
tls.enable | bool | false | Specifies whether to use TLS for communications between components |
tls.certManager | bool | false | If enabled, requires cert-manager to be installed and will automatically create the required TLS certificates |
enableNodeFeatureApi | bool | false | Enable the NodeFeature CRD API for communicating node features. This will automatically disable the gRPC communication. |
Master pod parameters
| Name | Type | Default | description |
|---|---|---|---|
master.* | dict | NFD master deployment configuration | |
master.port | integer | Specifies the TCP port that nfd-master listens for incoming requests. | |
master.instance | string | Instance name. Used to separate annotation namespaces for multiple parallel deployments | |
master.extraLabelNs | array | [] | List of allowed extra label namespaces |
master.resourceLabels | array | [] | List of labels to be registered as extended resources |
master.enableTaints | bool | false | Specifies whether to enable or disable node tainting |
master.crdController | bool | null | Specifies whether the NFD CRD API controller is enabled. If not set, controller will be enabled if master.instance is empty. |
master.featureRulesController | bool | null | DEPRECATED: use master.crdController instead |
master.replicaCount | integer | 1 | Number of desired pods. This is a pointer to distinguish between explicit zero and not specified |
master.podSecurityContext | dict | {} | PodSecurityContext holds pod-level security attributes and common container settings |
master.securityContext | dict | {} | Container security settings |
master.serviceAccount.create | bool | true | Specifies whether a service account should be created |
master.serviceAccount.annotations | dict | {} | Annotations to add to the service account |
master.serviceAccount.name | string | The name of the service account to use. If not set and create is true, a name is generated using the fullname template | |
master.rbac.create | bool | true | Specifies whether to create RBAC configuration for nfd-master |
master.service.type | string | ClusterIP | NFD master service type |
master.service.port | integer | 8080 | NFD master service port |
master.resources | dict | {} | NFD master pod resources management |
master.nodeSelector | dict | {} | NFD master pod node selector |
master.tolerations | dict | Scheduling to master node is disabled | NFD master pod tolerations |
master.annotations | dict | {} | NFD master pod annotations |
master.affinity | dict | NFD master pod required node affinity | |
master.deploymentAnnotations | dict | {} | NFD master deployment annotations |
Worker pod parameters
| Name | Type | Default | description |
|---|---|---|---|
worker.* | dict | NFD worker daemonset configuration | |
worker.config | dict | NFD worker configuration | |
worker.podSecurityContext | dict | {} | PodSecurityContext holds pod-level security attributes and common container settings |
worker.securityContext | dict | {} | Container security settings |
worker.serviceAccount.create | bool | true | Specifies whether a service account for nfd-worker should be created |
worker.serviceAccount.annotations | dict | {} | Annotations to add to the service account for nfd-worker |
worker.serviceAccount.name | string | The name of the service account to use for nfd-worker. If not set and create is true, a name is generated using the fullname template (suffixed with -worker) | |
worker.rbac.create | bool | true | Specifies whether to create RBAC configuration for nfd-worker |
worker.mountUsrSrc | bool | false | Specifies whether to allow users to mount the hostpath /user/src. Does not work on systems without /usr/src AND a read-only /usr |
worker.resources | dict | {} | NFD worker pod resources management |
worker.nodeSelector | dict | {} | NFD worker pod node selector |
worker.tolerations | dict | {} | NFD worker pod node tolerations |
worker.priorityClassName | string | NFD worker pod priority class | |
worker.annotations | dict | {} | NFD worker pod annotations |
worker.daemonsetAnnotations | dict | {} | NFD worker daemonset annotations |
Topology updater parameters
| Name | Type | Default | description |
|---|---|---|---|
topologyUpdater.* | dict | NFD Topology Updater configuration | |
topologyUpdater.enable | bool | false | Specifies whether the NFD Topology Updater should be created |
topologyUpdater.createCRDs | bool | false | Specifies whether the NFD Topology Updater CRDs should be created |
topologyUpdater.serviceAccount.create | bool | true | Specifies whether the service account for topology updater should be created |
topologyUpdater.serviceAccount.annotations | dict | {} | Annotations to add to the service account for topology updater |
topologyUpdater.serviceAccount.name | string | The name of the service account for topology updater to use. If not set and create is true, a name is generated using the fullname template and -topology-updater suffix | |
topologyUpdater.rbac.create | bool | true | Specifies whether to create RBAC configuration for topology updater |
topologyUpdater.kubeletConfigPath | string | "" | Specifies the kubelet config host path |
topologyUpdater.kubeletPodResourcesSockPath | string | "" | Specifies the kubelet sock path to read pod resources |
topologyUpdater.updateInterval | string | 60s | Time to sleep between CR updates. Non-positive value implies no CR update. |
topologyUpdater.watchNamespace | string | * | Namespace to watch pods, * for all namespaces |
topologyUpdater.podSecurityContext | dict | {} | PodSecurityContext holds pod-level security attributes and common container settings |
topologyUpdater.securityContext | dict | {} | Container security settings |
topologyUpdater.resources | dict | {} | Topology updater pod resources management |
topologyUpdater.nodeSelector | dict | {} | Topology updater pod node selector |
topologyUpdater.tolerations | dict | {} | Topology updater pod node tolerations |
topologyUpdater.annotations | dict | {} | Topology updater pod annotations |
topologyUpdater.affinity | dict | {} | Topology updater pod affinity |
topologyUpdater.config | dict | configuration |