Kubernetes Cluster Implementation

The Requirement

A healthcare technology company needed a robust infrastructure to host their patient management system. Given the sensitive nature of the data (PHI), security and HIPAA compliance were non-negotiable. Additionally, the system needed to be highly available to ensure doctors and patients always had access.

The Architecture

We designed a highly available Kubernetes cluster on AWS EKS. The architecture was distributed across three Availability Zones (AZs) to survive the failure of an entire data center.

Security & Compliance

Security was baked in at every layer:

• Network Policies: We used Calico to implement strict network segmentation, ensuring that services could only communicate with authorized endpoints.
• Encryption: All data was encrypted at rest using AWS KMS and in transit using TLS 1.3.
• RBAC: We implemented granular Role-Based Access Control to restrict user permissions based on the principle of least privilege.

Scalability with Helm

We used Helm charts to package and deploy the application components. This simplified the management of complex dependencies and allowed for easy versioning and rollbacks.

Outcome

The implementation provided a secure, compliant, and resilient foundation for the application. The auto-scaling capabilities ensured that the system remained responsive during high-traffic periods without manual intervention, while the strict security controls satisfied external auditors.