# EKS {% hint style="info" %} For an overview of the available Kubernetes features and supported platforms, please see our [Kubernetes guide](/admin/resources/clusters.md). {% endhint %} ## Overview This guide describes how to manage access to an Amazon Elastic Kubernetes Service (EKS) cluster via the StrongDM Admin UI. Adding an EKS cluster takes place in both the Admin UI and in the AWS Management Console. {% hint style="info" %} If you would like to learn more about how to enable automatic resource discovery within your Kubernetes cluster, or use privilege levels to allow users to request various levels of access to the Kubernetes cluster, please read the [Kubernetes Discovery and Privilege Levels](/admin/resources/clusters/kubernetes-management.md) section to learn more about those features prior to following this configuration guide. {% endhint %} ## Prerequisites Before you begin, ensure that the EKS endpoint you are connecting is accessible from one of your StrongDM gateways or relays. See our guide on [nodes](/admin/networking/gateways-and-relays.md) for more information. {% hint style="info" %} If you are using kubectl 1.30 or higher, it will default to using websockets, which the StrongDM client did not support prior to version 45.35.0. This can be remedied by taking one of the following actions: * Update your client to version 45.35.0 or greater. * Set the environment variable `KUBECTL_REMOTE_COMMAND_WEBSOCKETS=false` to restore the previous behavior in your kubectl. {% endhint %} ## Cluster Setup {% hint style="info" %} You can find information about your cluster in the AWS Management Console on your EKS cluster’s general configuration page. {% endhint %} ### Get the AWS Username and Access Credentials 1. In the AWS Management Console, go to **Identity and Access Management (IAM) > Users** and create a new **access key ID and secret access key** for the IAM user who will be accessing the EKS cluster. It does not need any specific rights. 2. Additionally, copy the **User Amazon Resource Name (ARN)** because you will need it later. ### Grant That User the Ability to Interact With Your Cluster 1. While authenticated to the cluster using your existing connection method, run the following command to edit the `aws-auth` ConfigMap (YML file) within Kubernetes:\ `kubectl edit -n kube-system configmap/aws-auth` 2. Copy the following snippet and paste it into the file under the `data:` heading: ```yml mapUsers: | - userarn: / username: groups: - ``` 3. In that snippet, do the following: 1. Replace `` with the ARN of the IAM user you created. 2. Replace `` with the IAM username. 3. Under `groups:`, specify the appropriate group for the permissions level you want this StrongDM connection to have (see [Kubernetes Roles](https://kubernetes.io/docs/reference/access-authn-authz/rbac/#default-roles-and-role-bindings) for more details). Example: ```yml mapUsers: | - userarn: arn:aws:iam::123456789012:user/aliceglick username: aliceglick groups: - system:masters ``` {% hint style="warning" %} The name under `groups:` in the `mapUsers` block must match the subject name in the desired ClusterRoleBinding, not the name of the ClusterRoleBinding itself. For example, if a default EKS cluster has a ClusterRoleBinding called `cluster-admin`, with a group named `system:masters`, then the name `system:masters` must be input in the `mapUsers` block under `groups:`. In the following example of the default ClusterRoleBinding for `cluster-admin` on an unconfigured EKS cluster, you can see that the group name under `Subjects` is `system:masters`. ```yml Name: cluster-admin Labels: kubernetes.io/bootstrapping=rbac-defaults Annotations: rbac.authorization.kubernetes.io/autoupdate: true Role: Kind: ClusterRole Name: cluster-admin Subjects: Kind Name Namespace ---- ---- --------- Group system:masters ``` {% endhint %} Also note that in the YML file, the indentation is **critically important**. If the indentation is wrong, the Edit command does not trigger an error message, but the change fails. Note that `mapUsers` should be at the same indent level as `mapRoles` in that file. 4. Save the file and exit your text editor. ## Resource Configuration in StrongDM This section provides instructions for adding the resource in either the StrongDM Admin UI, CLI, Terraform provider, or SDKs. {% tabs %} {% tab title="Admin UI" %} **Set up and Manage With the Admin UI** If using the Admin UI to add the resource to StrongDM, use the following steps. 1. Log in to the Admin UI and go to **Infrastructure > Clusters**. 2. Click the **Add Resource** button. 3. Select **EKS** as the **Resource Type** and set other [resource properties](#resource-properties) to configure how the StrongDM relay connects. ![](/files/Iu95ccRn9kwrBMYNDEs3) 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. {% endtab %} {% tab title="CLI" %} **Set up and Manage With the CLI** This section provides general steps on how to configure and manage the resource using the StrongDM CLI. For more information and examples, please see the [CLI Reference](https://docs.strongdm.com/references/cli) documentation. 1. In your terminal or Command Prompt, log in to StrongDM: ```sh sdm login ``` 2. Run `sdm admin clusters add eks --help` to view the help text for the command, which shows you how to use the command and what options (properties) are available. Note which [properties](#resource-properties) are required and collect the values for them. ```sh NAME: sdm admin clusters add amazon-eks - create Elastic Kubernetes Service cluster USAGE: sdm admin clusters add amazon-eks [command options] OPTIONS: --access-key-id value (required, secret) --allow-resource-role-bypass (For legacy orgs) allows users to fallback to the existing authentication mode (Leased Credential or Identity Set) when a resource role is not provided. --bind-interface value IP address on which to listen for connections to this resource on clients. Specify "default", "loopback", or "vnm" to automatically allocate an available address from the corresponding IP range configured in the organization. (default: "default") --certificate-authority value (secret) --cluster-name value (required) --discovery-enabled Enable discovery for the cluster. --discovery-username value The user to impersonate in the cluster when running discovery. Required if the cluster is configured for identity aliases. (conditional) --egress-filter value apply filter to select egress nodes e.g. 'field:name tag:key=value ...' --endpoint value (required) --healthcheck-namespace default This path will be used to check the health of your connection. Defaults to default. --identity-alias-healthcheck-username value (conditional) --identity-set-id value --identity-set-name value set the identity set by name --port-override value Port on which to listen for connections to this resource on clients. Specify "-1" to automatically allocate an available port. (default: -1) --proxy-cluster-id value proxy cluster id --region value (required) --role-arn value (secret) --role-external-id value (secret) --secret-access-key value (required, secret) --secret-store-id value secret store id --subdomain value, --bind-subdomain value DNS subdomain through which this resource may be accessed on clients (e.g. "app-prod" allows the resource to be accessed as "app-prod.."). Only applicable to HTTP-based resources or resources using virtual networking mode. --tags value tags e.g. 'key=value,...' --template, -t display a JSON template --timeout value set time limit for command ``` 3. Then run `sdm admin clusters add eks ` and set all required properties with their values. For example: ```sh sdm admin clusters add amazon-eks "eks-cluster-prod" --cluster-name "eks-prod-cluster" --region "us-west-2" --endpoint "https://ABCDE12345.gr7.us-west-2.eks.amazonaws.com" --access-key-id "AKIAIOSFODNN7EXAMPLE" --secret-access-key "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY" --role-arn "arn:aws:iam::123456789012:role/StrongDM-EKS-Access" --role-external-id "ext-id-eks-prod-2025" --certificate-authority "/etc/strongdm/certs/eks-ca.crt" --identity-set-name "EKS Cluster Admins" --identity-alias-healthcheck-username "svc_eks_health" --discovery-enabled --discovery-username "sdm-discovery" --healthcheck-namespace "default" --bind-interface "default" --port-override -1 --egress-filter 'field:name tag:env=prod tag:region=us-west' --proxy-cluster-id "plc_0123456789abcdef" --secret-store-id "ss_abcdef0123456789" --subdomain "eks-prod01" --tags "env=prod,cloud=aws,platform=kubernetes,team=devops" --timeout 30 ``` 4. Check that the resource has been added. The output of the following command should show the resource's name: ```sh sdm admin clusters list ``` {% endtab %} {% tab title="Terraform" %} **Set up and Manage With Terraform** This section provides an example of how to configure and manage the resource using the Terraform provider. For more information and examples, please see the [Terraform provider](https://github.com/strongdm/terraform-provider-sdm) documentation. ```hcl # Install StrongDM provider terraform { required_providers { sdm = { source = "strongdm/sdm" version = "16.5.0" } } } # Configure StrongDM provider provider "sdm" { # Add API access key and secret key from the Admin UI api_access_key = "njjSn...5hM" api_secret_key = "ziG...=" } # Create Amazon EKS cluster resource "sdm_resource" "eks_cluster_prod" { amazon_eks { # Required name = "eks-cluster-prod" # cluster_name = "eks-prod-cluster" # --cluster-name region = "us-west-2" # --region endpoint = "https://ABCDE12345.gr7.us-west-2.eks.amazonaws.com" # --endpoint # AWS credentials (use a secret store in production) access_key_id = "AKIAIOSFODNN7EXAMPLE" # --access-key-id secret_access_key = "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY" # --secret-access-key role_arn = "arn:aws:iam::123456789012:role/StrongDM-EKS-Access" # --role-arn (optional) role_external_id = "ext-id-eks-prod-2025" # --role-external-id (optional) # TLS / CA certificate_authority = file("/etc/strongdm/certs/eks-ca.crt") # --certificate-authority # Identity & discovery identity_set_name = "EKS Cluster Admins" # --identity-set-name identity_alias_healthcheck_username = "svc_eks_health" # --identity-alias-healthcheck-username (conditional) discovery_enabled = true # --discovery-enabled discovery_username = "sdm-discovery" # --discovery-username healthcheck_namespace = "default" # --healthcheck-namespace # Common networking options bind_interface = "default" # --bind-interface ("default" | "loopback" | "vnm") port_override = -1 # --port-override (-1 = auto-allocate) egress_filter = "field:name tag:env=prod tag:region=us-west" # --egress-filter subdomain = "eks-prod01" # --subdomain / --bind-subdomain (for VN access) # Optional integrations proxy_cluster_id = "plc_0123456789abcdef" # --proxy-cluster-id secret_store_id = "ss_abcdef0123456789" # --secret-store-id (recommended for keys) # (Legacy orgs) allow fallback auth when no resource role is provided allow_resource_role_bypass = false # --allow-resource-role-bypass # Tags tags = { # --tags env = "prod" cloud = "aws" platform = "kubernetes" team = "devops" } } } ``` {% endtab %} {% tab title="SDKs" %} **Set up and Manage With SDKs** In addition to the Admin UI, CLI, and Terraform, you may configure and manage your resource with any of the following SDK options: Go, Java, Python, and Ruby. Please see the following references for more information and examples. | Go | ​[pkg.go.dev](https://pkg.go.dev/github.com/strongdm/strongdm-sdk-go/v17)​ | ​[strongdm-sdk-go](https://github.com/strongdm/strongdm-sdk-go)​ | ​[Go SDK Examples](https://github.com/strongdm/strongdm-sdk-go-examples)​ | | ------------- | -------------------------------------------------------------------------- | ------------------------------------------------------------------------ | --------------------------------------------------------------------------------- | | Java | ​[javadoc](https://strongdm.github.io/strongdm-sdk-java-docs/)​ | ​[strongdm-sdk-java](https://github.com/strongdm/strongdm-sdk-java)​ | ​[Java SDK Examples](https://github.com/strongdm/strongdm-sdk-java-examples)​ | | Python | ​[pdocs](https://strongdm.github.io/strongdm-sdk-python-docs/)​ | ​[strongdm-sdk-python](https://github.com/strongdm/strongdm-sdk-python)​ | ​[Python SDK Examples](https://github.com/strongdm/strongdm-sdk-python-examples)​ | | Ruby | ​[RubyDoc](https://www.rubydoc.info/gems/strongdm)​ | ​[strongdm-sdk-ruby](https://github.com/strongdm/strongdm-sdk-ruby)​ | ​[Ruby SDK Examples](https://github.com/strongdm/strongdm-sdk-ruby-examples)​ | | {% endtab %} | | | | | {% endtabs %} | | | | ## Resource properties The **EKS** cluster type has the following properties.
PropertyRequirementDescription
Display NameRequiredMeaningful name to display the resource throughout StrongDM; exclude special characters like quotes (") or angle brackets (< or >)
Cluster TypeRequiredElastic Kubernetes Service
Proxy ClusterRequiredDefaults to "None (use gateways)"; if using proxy clusters, select the appropriate cluster to proxy traffic to this resource
EndpointRequiredAPI server endpoint of the EKS cluster in the format <ID>.<REGION>.eks.amazonaws.com, such as A95FBC180B680B58A6468EF360D16E96.yl4.us-west-2.eks.amazonaws.com; relay server should be able to connect to your EKS endpoint
Connectivity ModeRequiredSelect either Virtual Networking Mode, which lets users connect to the resource with a software-defined, IP-based network; or Loopback Mode, which allows users to connect to the resource using the local loopback adapter in their operating system; this field is shown if Virtual Networking Mode enabled for your organization
IP AddressOptionalIf Virtual Networking Mode is the selected connectivity mode, an IP address value in the configured Virtual Networking Mode subnet in the organization network settings; if Loopback Mode is the selected connectivity mode, an IP address value in the configured Loopback IP range in the organization network settings (by default, 127.0.0.1); if not specified, an available IP address in the configured IP address space for the selected connectivity mode will be automatically assigned; this field is shown if Virtual Networking Mode and/or multi-loopback mode is enabled for your organization
Port OverrideOptionalIf Virtual Networking Mode is the selected connectivity mode, a port value between 1 and 65535 that is not already in use by another resource with the same IP address; if Loopback Mode is the selected connectivity mode, a port value between 1024 to 64999 that is not already in use by another resource with the same IP address; when left empty with Virtual Networking Mode, the system assigns the default port to this resource; when left empty for Loopback Mode, an available port that is not already in use by another resource is assigned; preferred port also can be modified later from the Port Overrides settings
DNSOptionalIf Virtual Networking Mode is the selected connectivity mode, a unique hostname alias for this resource; when set, causes the desktop app to display this resource's human-readable DNS name (for example, k8s.my-organization-name) instead of the bind address that includes IP address and port (for example, 100.64.100.100:5432)
Secret StoreOptionalCredential store location; defaults to none (credentials are stored in StrongDM resource configuration)
Access Key IDRequiredAccess key ID, such as AKIAIOSFODNN7EXAMPLE, from the AWS key pair that you created in Step 1
Secret Access KeyRequiredSecret access key, such as wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY, from the AWS key pair that you created in Step 1
Server CAOptionalPasted server certificate (plaintext or Base64-encoded), or imported PEM file; you can either generate the server certificate on the API server or get it in Base64 format from your existing Kubernetes configuration (kubeconfig) file
Cluster NameRequiredName of the EKS cluster
RegionRequiredRegion of the EKS cluster, such as us-west-1
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
Enable Resource DiscoveryOptionalEnables automatic discovery within this cluster
AuthenticationRequiredAuthentication method to access the cluster; select either Leased Credential (default) or Identity Aliases (to use the Identity Aliases of StrongDM users to access the cluster)
Identity SetRequiredDisplays if Authentication is set to Identity Aliases; select an Identity Set name from the list
Healthcheck UsernameRequiredIf Authentication is set to Identity Aliases, the username that should be used to verify StrongDM's connection to it; username must already exist on the target cluster
Assume Role ARNOptionalRole ARN, such as arn:aws:iam::000000000000:role/RoleName, that allows users accessing this resource to assume a role using AWS AssumeRole functionality
Assume Role External IDOptionalExternal ID if leveraging an external ID to users assuming a role from another account; if used, it must be used in conjunction with Assume Role ARN; see the AWS documentation on using external IDs for more information
Resource TagsOptionalResource /spaces/4XOJmXFslCMVCzIG2rKp/pages/anUqbOAAmDPD3e0fF6GO consisting of key-value pairs <KEY>=<VALUE> (for example, env=dev)
### **Display name** Some Kubernetes management interfaces, such as Visual Studio Code, do not function properly with cluster names containing spaces. If you run into problems, please choose a **Display Name** without spaces. ### **AWS credentials** When your users connect to this cluster, they have exactly the rights permitted by this AWS key pair. See [AWS documentation](https://docs.aws.amazon.com/eks/latest/userguide/security-iam.html) for more information. ### **Secret Store options** By default, server credentials are stored in StrongDM. However, these credentials can also be saved in a secrets management tool. Non-StrongDM options appear in the **Secret Store** dropdown menu if they are created under **Settings** > **Secrets Management**. When you select another Secret Store type, its unique properties display. For more details, see [Configure Secret Store Integrations](/admin/access/secret-stores.md). ## Test the Connection 1. After creating the EKS cluster resource in the Admin UI, navigate to **Infrastructure > Clusters** and locate your newly added cluster. The health indicator should turn green once connectivity and credentials are validated. 2. On a test client using the StrongDM desktop app or CLI, connect to the cluster and run a basic command such as `kubectl get nodes`. Confirm the output returns your nodes and the connection is routed via StrongDM. 3. If discovery is enabled, in the Admin UI, verify that namespaces, roles, and service accounts appear under the cluster’s **Discovery** tab. This indicates StrongDM successfully queried the Kubernetes API. 4. If the health status remains red or yellow: * Verify the cluster’s endpoint, region, and IAM credentials are correct and reachable from your relay or gateway. * Check certificate authority and client credentials if using TLS authentication. * Confirm `healthcheck_namespace` exists and the identity alias user (if specified) has access. * Review logs in the Diagnostics tab for authentication or network errors. Once connectivity is verified and you can perform Kubernetes operations successfully, the EKS cluster resource is ready. You can assign roles, apply policies, and monitor access through StrongDM. ## Help If you encounter issues, please consult the [StrongDM Help Center](https://help.strongdm.com/hc/en-us). Be prepared to provide the following information to StrongDM Support, so that they can inspect logs and confirm node and resource health: * Resource name or ID * CLI error output or logs * Node name and region * Timestamps of failed attempts --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.strongdm.com/admin/resources/clusters/eks.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.