How to automate incident response for Amazon EKS on Amazon EC2

This article discusses how to automate incident response for Amazon EKS (Elastic Kubernetes Service) clusters running on Amazon EC2, addressing the unique challenges of handling security events in Kubernetes environments.

• Key differences between EC2 and EKS incident response include:
  • Multiple pods can run on a single EC2 instance
  • Specialized tools like kubectl are needed for investigation
  • Network isolation requires different approaches (cordoning nodes, network policies)
• The solution provides an automated workflow for:
• Detecting GuardDuty security findings
• Capturing forensic evidence (memory and disk snapshots)
• Isolating compromised EKS resources
• Investigating forensic artifacts
• The automated solution uses AWS services like:
• Step Functions
• EventBridge
• Security Hub
• Systems Manager

The article emphasizes the importance of understanding Kubernetes architecture and working closely with security and application teams when implementing automated incident response solutions.