MicroK8s Addons

To be as lightweight as possible, MicroK8s only installs the basics of a usable Kubernetes install:

  • api-server
  • controller-manager
  • scheduler
  • kubelet
  • cni
  • kube-proxy

While this does deliver a pure Kubernetes experience with the smallest of resource footprints, there are situations where you may require additional services. MicroK8s caters for this with the concept of “Addons” - extra services which can easily be added to MicroK8s. These addons can be enabled and disabled at any time, and most are pre-configured to ‘just work’ without any further set up.

For example, to enable the CoreDNS addon:

microk8s enable dns

These add-ons can be disabled at anytime using the disable command:

microk8s disable dns

… and you can check the list of available and installed addons at any time by running:

microk8s status

Current MicroK8s Addons

dashboard: The standard Kubernetes Dashboard.

dns: Deploys CoreDNS. This add-on may be required by others - it is recommended you always enable it. In restricted environments you may need to update the upstream DNS servers.

cilium: Deploys Cilium to support Kubernetes network policies using eBPF.

fluentd: Deploy the Elasticsearch-Fluentd-Kibana logging and monitoring solution.

gpu: Enable support for GPU accelerated workloads using the NVIDIA runtime.

helm: Installs the Helm 2 package manager for Kubernetes.

ingress: A simple ingress controller for external access.

istio: Adds the core Istio services.

jaeger: Deploy the Jaeger Operator in the “simplest” configuration.

juju: Enables a juju client to work with MicroK8s.

knative: Adds the Knative middleware to your cluster.

kubeflow: Adds KubeFlow using the kubeflow juju bundle.

linkerd: Deploys the linkerd service mesh.

metrics-server: Adds the Kubernetes Metrics Server for API access to service metrics.

prometheus: Deploys the Prometheus Operator.

rbac: Enable Role Based Access Control for authorisation. Note that this is incompatible with some other add-ons.

registry: Deploy a private image registry and expose it on localhost:32000. The storage add-on will be enabled as part of this add-on. See the registry documentation for more details.

storage: Create a default storage class which allocates storage from a host directory.

metallb: Deploys the MetalLB Loadbalancer. Note that currently this does not work under multipass on macOS, due to filtering that macOS applies to network traffic.

We appreciate your feedback on the docs. You can edit this page or file a bug here.