Kubernetes Metrics Server
Metrics Server is a scalable, efficient source of container resource metrics for Kubernetes built-in autoscaling pipelines.
Installing the Chart
Before you can install the chart you will need to add the metrics-server repo to Helm.
helm repo add metrics-server https://kubernetes-sigs.github.io/metrics-server/
After you've installed the repo you can install the chart.
helm upgrade --install metrics-server/metrics-server
Configuration
The following table lists the configurable parameters of the Metrics Server chart and their default values.
| Parameter | Description | Default |
|---|---|---|
image.repository |
Image repository. | k8s.gcr.io/metrics-server/metrics-server |
image.tag |
Image tag, will override the default tag derived from the chart app version. | "" |
image.pullPolicy |
Image pull policy. | IfNotPresent |
imagePullSecrets |
Image pull secrets. | [] |
nameOverride |
Override the name of the chart. |
nil |
fullnameOverride |
Override the fullname of the chart. |
nil |
serviceAccount.create |
If true, create a new service account. |
true |
serviceAccount.annotations |
Annotations to add to the service account. | {} |
serviceAccount.name |
Service account to be used. If not set and serviceAccount.create is true, a name is generated using the full name template. |
nil |
rbac.create |
If true, create the RBAC resources. |
true |
rbac.pspEnabled |
If true, create a pod security policy resource. |
false |
apiService.create |
If true, create the v1beta1.metrics.k8s.io API service. You typically want this enabled! If you disable API service creation you have to manage it outside of this chart for e.g horizontal pod autoscaling to work with this release. |
true |
podLabels |
Labels to add to the pod. | {} |
podAnnotations |
Annotations to add to the pod. | {} |
podSecurityContext |
Security context for the pod. | {} |
securityContext |
Security context for the metrics-server container. | See values.yaml |
priorityClassName |
Priority class name to use. | system-cluster-critical |
containerPort |
port for the metrics-server container. | 4443 |
hostNetwork.enabled |
If true, start metric-server in hostNetwork mode. You would require this enabled if you use alternate overlay networking for pods and API server unable to communicate with metrics-server. As an example, this is required if you use Weave network on EKS. |
false |
replicas |
Number of replicas to run. | 1 |
updateStrategy |
Customise the default update strategy. | {} |
podDisruptionBudget.enabled |
If true, create PodDisruptionBudget resource. |
{} |
podDisruptionBudget.minAvailable |
Set the PodDisruptionBugdet minimum available pods. |
nil |
podDisruptionBudget.maxUnavailable |
Set the PodDisruptionBugdet maximum unavailable pods. |
nil |
args |
Additional arguments to pass to the metrics-server command. | [] |
livenessProbe |
Liveness probe. | See values.yaml |
readinessProbe |
Readiness probe. | See values.yaml |
service.type |
Service type. | ClusterIP |
service.port |
Service port. | 443 |
service.annotations |
Annotations to add to the service. | {} |
service.labels |
Labels to add to the service. | {} |
resources |
Resource requests and limits for the metrics-server container. | {} |
extraVolumeMounts |
Additional volume mounts for the metrics-server container. | [] |
extraVolumes |
Additional volumes for the pod. | [] |
nodeSelector |
Node labels for pod assignment. | {} |
tolerations |
Tolerations for pod assignment. | [] |
affinity |
Affinity for pod assignment. | {} |