node-feature-discovery/docs/deployment/helm.md

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Helm	default	3

Deployment with Helm

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Table of contents

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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={{ site.release }}-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	`{{ site.container_image	split: ":"
image.tag	string	{{ site.release }}	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.
prometheus.enable	bool	false	Specifies whether to expose metrics using prometheus operator
prometheus.labels	dict	{}	Specifies labels for use with the prometheus operator to control how it is selected

Metrics are configured to be exposed using prometheus operator API's by default. If you want to expose metrics using the prometheus operator API's you need to install the prometheus operator in your cluster.

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.metricsPort	integer	8081	Port on which to expose metrics from components to prometheus operator
master.instance	string		Instance name. Used to separate annotation namespaces for multiple parallel deployments
master.resyncPeriod	string		NFD API controller resync period.
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
master.nfdApiParallelism	integer	10	Specifies the maximum number of concurrent node updates.
master.config	dict		NFD master configuration

Worker pod parameters

Name	Type	Default	description
worker.*	dict		NFD worker daemonset configuration
worker.metricsPort*	integer	8081	Port on which to expose metrics from components to prometheus operator
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
topologyUpdater.podSetFingerprint	bool	false	Enables compute and report of pod fingerprint in NRT objects.
topologyUpdater.kubeletStateDir	string	/var/lib/kubelet	Specifies kubelet state directory path for watching state and checkpoint files. Empty value disables kubelet state tracking.

Topology garbage collector parameters

Name	Type	Default	description
topologyGC.*	dict		NFD Topology Garbage Collector configuration
topologyGC.enable	bool	true	Specifies whether the NFD Topology Garbage Collector should be created
topologyGC.serviceAccount.create	bool	true	Specifies whether the service account for topology garbage collector should be created
topologyGC.serviceAccount.annotations	dict	{}	Annotations to add to the service account for topology garbage collector
topologyGC.serviceAccount.name	string		The name of the service account for topology garbage collector to use. If not set and create is true, a name is generated using the fullname template and -topology-gc suffix
topologyGC.rbac.create	bool	true	Specifies whether to create RBAC configuration for topology garbage collector
topologyGC.interval	string	1h	Time between periodic garbage collector runs
topologyGC.podSecurityContext	dict	{}	PodSecurityContext holds pod-level security attributes and common container settings
topologyGC.securityContext	dict	{}	Container security settings
topologyGC.resources	dict	{}	Topology garbage collector pod resources management
topologyGC.nodeSelector	dict	{}	Topology garbage collector pod node selector
topologyGC.tolerations	dict	{}	Topology garbage collector pod node tolerations
topologyGC.annotations	dict	{}	Topology garbage collector pod annotations
topologyGC.affinity	dict	{}	Topology garbage collector pod affinity