Installing extensions

Linkerd provides built-in extensions, such as viz, jaeger, and multicluster.

Buoyant Enterprise for Linkerd includes a hardened version of the multi-cluster extension. Other built-in extensions can be installed with the BEL CLI or with Helm by installing that extension’s Helm chart.

Prerequisites

• Buoyant Enterprise for Linkerd installed on a Kubernetes cluster
• The BUOYANT_LICENSE environment variable set, with functioning BEL CLI

Installing the multi-cluster extension

You can install the hardened version of the multi-cluster extension by running the follow command:

linkerd multicluster install | kubectl apply -f -

helm repo add linkerd-buoyant https://helm.buoyant.cloud
helm repo update

helm install linkerd-multicluster \
  --create-namespace \
  --namespace linkerd-multicluster \
  --set license=$BUOYANT_LICENSE \
  linkerd-buoyant/linkerd-enterprise-multicluster

Installing other extensions

You can install other built-in Linkerd extensions, such as viz and jaeger, with the extension’s install command. For example, to install the viz extension with the BEL CLI, you can use:

linkerd viz install | kubectl apply -f -

Learning more

More details about extensions can be found in the Linkerd OSS docs.