Add a Google Kubernetes Engine Cluster

Last modified on November 3, 2022

This guide describes how to manage access to an Google Kubernetes Engine (GKE) cluster. Adding a GKE cluster takes place in the StrongDM Admin UI, Google Cloud Console, and Google Developers Console.

Prerequisites

Before you begin, ensure that the GKE endpoint you are connecting is accessible from one of your StrongDM gateways or relays. See our guide on Gateways for more information.

Add Your GKE Cluster in StrongDM

  1. Log in to the Admin UI and go to Infrastructure > Clusters.

  2. Click the Add cluster button.

  3. Select Google Kubernetes Engine as the Server Type and set other resource properties to configure how the StrongDM relay connects.

    Google Kubernetes Engine Cluster Setup in Admin UI
    Google Kubernetes Engine Cluster Setup in Admin UI
  4. Click Create to save the resource.

The Admin UI updates and shows your new cluster in a green or yellow state. Green indicates a successful connection. If it is yellow, click the pencil icon to the right of the server to reopen the Connection Details screen. Then click Diagnostics to determine where the connection is failing.

Resource properties

Configuration properties are visible when you add a Cluster Type or when you click to view the cluster’s settings. The following table describes the settings available for your GKE cluster.

PropertyRequirementDescription
Display NameRequiredMeaningful name to display the resource throughout StrongDM; exclude special characters like quotes (") or angle brackets (< or >)
Server TypeRequiredSelect Google Kubernetes Engine
EndpointRequiredEndpoint of the GKE cluster, such as 35.232.191.126; relay server should be able to connect to your EKS endpoint
Bind InterfaceRead onlyAutomatically generated IP address value in the 127.0.0.1 to 127.255.255.254 IP address range; default is 127.0.0.1; preferred bind interface value can be modified later under Settings > Port Overrides
Port OverrideRead onlyAutomatically generated with a value between 1024 to 59999 as long as that port is not used by another resource; preferred port can be modified later under Settings > Port Overrides; after specifying the port override number, you must also update the kubectl configuration, which you can learn more about in section Port Overrides
Secret StoreOptionalCredential store location with the default set to StrongDM; to learn more, see Secret Store options
Server CARequiredServer CA, which is available under the Show Credentials link just to the right of the endpoint in the Google Cloud Platform console
Service Account KeyRequiredService account key in JSON format; you can generate this key in the Google Developers Console; ensure it is associated with a user having the appropriate level of access to the cluster for your use case; once generated, upload the key using the button below the Service Account Key box
Healthcheck NamespaceOptionalIf enabled for your organization, the namespace used for the resource healthcheck; defaults to default if empty; supplied credentials must have the rights to perform one of the following kubectl commands in the specified namespace: get pods, get deployments, or describe namespace
AuthenticationRequiredAuthentication method to access the cluster; select either Leased Credential (default) or Remote Identities (to use the Remote Identities of StrongDM users to access the cluster)
Healthcheck UsernameRequiredIf Authentication is set to Remote Identities, the username that should be used to verify StrongDM’s connection to it; username must already exist on the target cluster
Resource TagsOptionalResource tags consisting of key-value pairs <KEY>=<VALUE> (for example, env=dev)
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