@helm-charts/bitnami-metrics-server

@helm-charts/bitnami-metrics-server

Metrics Server is a cluster-wide aggregator of resource usage data. Metrics Server collects metrics from the Summary API, exposed by Kubelet on each node.

Field	Value
Repository Name	bitnami
Chart Name	metrics-server
Chart Version	2.3.0
NPM Package Version	0.1.0

Helm chart `values.yaml` (default values)

## Global Docker image parameters
## Please, note that this will override the image parameters, including dependencies, configured to use the global value
## Current available global Docker image parameters: imageRegistry and imagePullSecrets
##
# global:
#   imageRegistry: myRegistryName
#   imagePullSecrets:
#     - myRegistryKeySecretName

## Bitnami Metrics Server image version
## ref: https://hub.docker.com/r/bitnami/metrics-server/tags/
##
image:
  registry: docker.io
  repository: bitnami/metrics-server
  tag: 0.3.1
  ## Specify a imagePullPolicy
  ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
  ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images
  ##
  pullPolicy: Always

  ## Optionally specify an array of imagePullSecrets.
  ## Secrets must be manually created in the namespace.
  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
  ##
  # pullSecrets:
  #   - myRegistryKeySecretName

rbac:
  # Specifies whether RBAC resources should be created
  create: true

serviceAccount:
  # Specifies whether a ServiceAccount should be created
  create: true
  # The name of the ServiceAccount to use.
  # If not set and create is true, a name is generated using the fullname template
  name:

apiService:
  # Specifies if the v1beta1.metrics.k8s.io API service should be created.
  # This should not be necessary in k8s version >= 1.8
  # 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.
  create: false

## Specify the secure port where metrics-server will be running
##
securePort: 8443

service:
  type: ClusterIP
  port: 443
  ## Specify the nodePort value for the LoadBalancer and NodePort service types.
  ## ref: https://kubernetes.io/docs/concepts/services-networking/service/#type-nodeport
  ##
  # nodePort:
  ## Provide any additional annotations which may be required. This can be used to
  ## set the LoadBalancer service type to internal only.
  ## ref: https://kubernetes.io/docs/concepts/services-networking/service/#internal-load-balancer
  ##
  annotations: {}
  # loadBalancerIP:

---

Metrics Server

Metrics Server is a cluster-wide aggregator of resource usage data. Metrics Server collects metrics from the Summary API, exposed by Kubelet on each node.

TL;DR;

$ helm install bitnami/metrics-server

Introduction

This chart bootstraps a Metrics Server deployment on a Kubernetes cluster using the Helm package manager.

Bitnami charts can be used with Kubeapps for deployment and management of Helm Charts in clusters. This Helm chart has been tested on top of Bitnami Kubernetes Production Runtime (BKPR). Deploy BKPR to get automated TLS certificates, logging and monitoring for your applications.

Prerequisites

• Kubernetes 1.8+ with Beta APIs enabled
• PV provisioner support in the underlying infrastructure

Installing the Chart

To install the chart with the release name my-release:

$ helm install --name my-release bitnami/metrics-server

The command deploys Metrics Server on the Kubernetes cluster in the default configuration. The configuration section lists the parameters that can be configured during installation.

Tip: List all releases using helm list

Uninstalling the Chart

To uninstall/delete the my-release deployment:

$ helm delete my-release

The command removes all the Kubernetes components associated with the chart and deletes the release.

Configuration

The following tables lists the configurable parameters of the Metrics Server chart and their default values.

Parameter	Description	Default
global.imageRegistry	Global Docker image registry	nil
global.imagePullSecrets	Global Docker registry secret names as an array	[] (does not add image pull secrets to deployed pods)
image.registry	Metrics Server image registry	docker.io
image.repository	Metrics Server image name	bitnami/metrics-server
image.tag	Metrics Server image tag	{VERSION}
image.pullPolicy	Metrics Server image pull policy	Always
securePort	Port where metrics-server will be running	8443
service.type	Kubernetes Service type	ClusterIP
service.port	Kubernetes Service port	443
service.annotations	Annotations for the Service	{}
service.loadBalancerIP	LoadBalancer IP if Service type is LoadBalancer	nil
service.nodePort	NodePort if Service type is LoadBalancer or NodePort	nil
rbac.create	Enable RBAC authentication	true
serviceAccount.create	Specifies whether a ServiceAccount should be created	true
serviceAccount.name	The name of the ServiceAccount to create	Generated using the fullname template
apiService.create	Specifies whether the v1beta1.metrics.k8s.io API service should be created (This should not be necessary in k8s version >= 1.8)	false

Specify each parameter using the --set key=value[,key=value] argument to helm install. For example,

$ helm install --name my-release \
  --set rbac.create=true bitnami/metrics-server

The above command enables RBAC authentication.

Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,

$ helm install --name my-release -f values.yaml bitnami/metrics-server

Tip: You can use the default values.yaml

Enable security for Metrics Server

Configure RBAC

In order to enable Role-based access control for Metrics Servier you can run the following command:

$ helm install --name my-release --set rbac.create bitnami/metrics-server

Upgrading

To 2.0.0

Backwards compatibility is not guaranteed unless you modify the labels used on the chart's deployments. Use the workaround below to upgrade from versions previous to 2.0.0. The following example assumes that the release name is metrics-server:

$ kubectl patch deployment metrics-server --type=json -p='[{"op": "remove", "path": "/spec/selector/matchLabels/chart"}]'