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Portfolio

Building Efficient Kubernetes Infrastructure with Terraform and Blueprints Addons

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A comprehensive project deploying a sample web application using Terraform EKS modules and add-ons. My focus was on establishing robust networking, efficient cluster provisioning, essential add-ons, and comprehensive monitoring to ensure a seamless deployment experience. The solution includes a multi-AZ VPC with private and public subnets, Amazon EKS running across private subnets, ELB for traffic routing, auto-scaling for dynamic capacity management, and CloudWatch Observability for real-time monitoring.

 • A multi-AZ VPC with private and public subnets for secure and scalable networking.
Provision Amazon EKS clusters with Terraform Blueprints, abstracting infrastructure complexity and promoting reuse across environments.
 • Amazon EKS control plane and worker nodes running across private subnets.
 • EKS Managed Node Groups with auto-scalingfor dynamic workload management.
 • Elastic Load Balancer (ELB) for routing external traffic.
 • CloudWatch Observability for real-time monitoring.

The architecture is designed for high availability, security, and operational excellence, consisting of:

𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐚 𝐍𝐞𝐭𝐰𝐨𝐫𝐤𝐢𝐧𝐠 𝐅𝐨𝐮𝐧𝐝𝐚𝐭𝐢𝐨𝐧 𝐰𝐢𝐭𝐡 𝐓𝐞𝐫𝐫𝐚𝐟𝐨𝐫𝐦

Using Terraform VPC modules allows for consistent and repeatable infrastructure deployment with these key components:

 • A multi-AZ network with private subnets for worker nodes.
 •  NAT Gateways to allow outbound internet access from private subnets.
 •  Security Groups and Network ACLs to control traffic between subnets, ensuring fine-grained access control and a secure environment.

𝐃𝐞𝐩𝐥𝐨𝐲𝐢𝐧𝐠 𝐚𝐧 𝐄𝐊𝐒 𝐂𝐥𝐮𝐬𝐭𝐞𝐫 𝐰𝐢𝐭𝐡 𝐓𝐞𝐫𝐫𝐚𝐟𝐨𝐫𝐦

With Terraform EKS modules, we can automate the entire cluster provisioning process, dramatically reducing the complexity while ensuring consistent deployments:

 •  Provisioning the EKS control plane in a dedicated VPC.
 • Deploying worker nodes in auto-scaling groups across private subnets.
 • IAM role assignments to securely manage cluster access.

𝐄𝐧𝐡𝐚𝐧𝐜𝐢𝐧𝐠 𝐄𝐊𝐒 𝐰𝐢𝐭𝐡 𝐓𝐞𝐫𝐫𝐚𝐟𝐨𝐫𝐦 𝐀𝐝𝐝-𝐨𝐧𝐬 𝐚𝐧𝐝 𝐍𝐚𝐭𝐢𝐯𝐞 𝐂𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬

To optimize networking and observability, we leverage both the Terraform-managed resources and native EKS features:

 •  VPC-CNI for efficient pod networking within the VPC.
 •  CloudWatch Observability for real-time logs, metrics, and performance monitoring.
 •  AWS Load Balancer Controller for automated ALB/NLB provisioning and traffic management.
𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐧𝐠 𝐀𝐦𝐚𝐳𝐨𝐧 𝐄𝐊𝐒 𝐂𝐥𝐨𝐮𝐝𝐖𝐚𝐭𝐜𝐡 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫 𝐈𝐧𝐬𝐢𝐠𝐡𝐭𝐬

Amazon CloudWatch Container Insights provides deep visibility into cluster operations by:

 •  Tracking CPU and memory utilization per pod.
 •  Integrating logs and metrics for proactive monitoring and troubleshooting.
 •  Enhancing operational efficiency with real-time alerts and dashboards.

AWS Services and Tools Used
• Amazon EKS:  EKS clusters are provisioned and auto-scaling node groups are used to efficiently handle workloads.
• Amazon VPC:  A multi-AZ VPC with private and public subnets ensures secure, scalable networking for the EKS deployment.
• Amazon ELB:  Routes external traffic to the application in the EKS cluster.
• NAT Gateways:  Used to allow outbound internet access for worker nodes in private subnets.
• CLoudWatch Container Insights:  Collects metrics and logs from the EKS pods, enabling proactive monitoring of CPU, memory, and performance metrics.
• VPC-CNI (Amazon VPC CNI Plugin for Kubernetes):  Ensures seamless pod-to-pod networking in the VPC and enables efficient networking across your EKS cluster.
• AWS IAM:  IAM roles are assigned to nodes in the EKS cluster to ensure secure access control.

Best Practices for building Efficient Kubernetes Infrastructure with EKS and Terraform
Terraform simplifies infrastructure as code (IaC), making EKS and VPC deployments scalable and repeatable.
A well-architected VPC with private subnets improves security and isolation.
EKS Blueprints Add-ons optimize networking (VPC-CNI), observability (CloudWatch), AWS Load Balancer controller.
CloudWatch Container Insights offers real-time monitoring for proactive issue resolution.

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