Customer Name:
Cohire Solutions
Case Study Title:
Cohire Solutions Modernizes Application Deployment with Amazon EKS on AWS Fargate
Case Study Short Description:
Cohire Solutions partnered with Tekrosta to modernize its application infrastructure by migrating containerized workloads from Amazon EC2 to Amazon EKS on AWS Fargate. The solution improved scalability, reduced operational overhead, enhanced security, and established an automated CI/CD pipeline for faster application deployments.
Problem Statement/ Definition:
Cohire Solutions was running its Docker-based microservices on Amazon EC2 instances, which required significant infrastructure management and limited the ability to scale individual services independently. The existing architecture lacked centralized monitoring, automated deployments, and secure internal communication mechanisms.
To support business growth and improve operational efficiency, Cohire Solutions aimed to:
- Migrate Docker workloads from EC2 to Amazon EKS on AWS Fargate.
- Enable independent scaling of microservices.
- Implement secure and centralized application access.
- Establish automated CI/CD pipelines.
- Improve observability and monitoring capabilities.
Proposed Solution & Architecture:
Tekrosta designed and implemented a cloud-native container platform leveraging AWS managed services and serverless container technology.
The solution included:
- Migration of three containerized microservices from EC2 to Amazon EKS on AWS Fargate.
- Deployment of Amazon EKS cluster with isolated pods for independent service scaling.
- Amazon ECR for secure container image storage and management.
- Amazon API Gateway as the centralized entry point for application services.
- Application Load Balancer (ALB) for traffic distribution.
- Amazon RDS for PostgreSQL as the managed relational database platform.
- Integration with MongoDB Atlas for SaaS-based database services.
- AWS CodePipeline and CodeDeploy for automated CI/CD implementation.
- Amazon CloudWatch for centralized logging, dashboards, and monitoring.
- AWS CloudTrail, AWS Config, and Amazon GuardDuty for governance, compliance, and security monitoring.
- Deployment within a secure private VPC architecture with controlled service-to-service communication.
Outcomes of Project & Success Metrics:
- Successfully deployed all three microservices on Amazon EKS using AWS Fargate.
- Eliminated EC2 infrastructure management overhead through serverless container execution.
- Achieved secure internal communication between services within a private VPC.
- Established API Gateway as the single-entry point for external application access.
- Successfully integrated MongoDB Atlas and Amazon RDS PostgreSQL.
- Implemented automated CI/CD pipelines, significantly reducing deployment effort and release time.
- Enabled centralized monitoring and operational visibility through Amazon CloudWatch dashboards and alerts.
- Improved scalability by allowing independent scaling of each microservice.
- Enhanced security and compliance using CloudTrail, AWS Config, and GuardDuty.
- Delivered complete implementation documentation and knowledge transfer to the customer team.
Lessons Learned
- Adopting AWS Fargate significantly simplifies Kubernetes operations by removing server management responsibilities.
- Early planning of network design and service communication patterns is critical for microservices deployment.
- Container image standardization and proper CI/CD automation accelerate migration and future application releases.
- Centralized monitoring and governance services should be implemented from the beginning to improve operational visibility and security compliance.