Deploying SentinelOne Agent to EKS Using Terraform

A step-by-step guide to deploy SentinelOne Agent and S1 Helper to your EKS cluster using Terraform.

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Introduction

When it comes to managing and securing Kubernetes clusters, having the right set of tools is crucial. SentinelOne, a cybersecurity solution, provides an agent that helps in monitoring and protecting your EKS (Elastic Kubernetes Service) cluster. In this guide, I will walk you through the process of deploying the SentinelOne Agent and S1 Helper to your EKS cluster using Terraform, which will provide an automated and reproducible deployment.

Prerequisites

• An AWS account and an EKS cluster up and running.
• Terraform installed on your local machine.
• SentinelOne account with necessary credentials.

Step 1: Preparing Your Terraform Environment

Before we dive into the Terraform code, ensure you have your AWS credentials configured properly. You can set up your credentials using the AWS CLI or by configuring environment variables.

export AWS_ACCESS_KEY_ID="your-access-key-id"
export AWS_SECRET_ACCESS_KEY="your-secret-access-key"
export AWS_DEFAULT_REGION="your-region"

Step 2: Setting Up Terraform Configuration

Create a file named main.tf and add the following Terraform configuration to define your provider and the required resources.

provider "aws" {
  region = "us-west-2"  # Change to your AWS region
}

provider "kubernetes" {
  config_path = "~/.kube/config"
}

resource "kubernetes_namespace" "s1" {
  metadata {
    name = "sentinelone"
  }
}

resource "kubernetes_deployment" "s1_agent" {
  metadata {
    name      = "s1-agent"
    namespace = kubernetes_namespace.s1.metadata[0].name
  }

  spec {
    replicas = 3

    selector {
      match_labels = {
        app = "s1-agent"
      }
    }

    template {
      metadata {
        labels = {
          app = "s1-agent"
        }
      }

      spec {
        container {
          image = "sentinelone/agent:latest"  # Replace with the correct image
          name  = "s1-agent"

          env {
            name  = "S1_API_TOKEN"
            value = "your-s1-api-token"
          }
        }
      }
    }
  }
}

Step 3: Deploying S1 Helper

The S1 Helper is a crucial component that assists in the management of the SentinelOne Agent. Add the following to your main.tf:

resource "kubernetes_deployment" "s1_helper" {
  metadata {
    name      = "s1-helper"
    namespace = kubernetes_namespace.s1.metadata[0].name
  }

  spec {
    replicas = 1

    selector {
      match_labels = {
        app = "s1-helper"
      }
    }

    template {
      metadata {
        labels = {
          app = "s1-helper"
        }
      }

      spec {
        container {
          image = "sentinelone/helper:latest"  # Replace with the correct image
          name  = "s1-helper"

          env {
            name  = "S1_API_TOKEN"
            value = "your-s1-api-token"
          }
        }
      }
    }
  }
}

Step 4: Applying Your Configuration

With your configuration ready, initialize Terraform and apply your configuration:

terraform init
terraform apply

Conclusion

You've now automated the deployment of SentinelOne Agent and S1 Helper to your EKS cluster using Terraform. This setup not only enhances the security posture of your cluster but also provides a streamlined and reproducible deployment process. Feel free to tweak the Terraform configurations to meet your specific use case and security requirements.