Overview

Cognetiks Consulting partnered with 3Line to modernize its AWS infrastructure and establish a secure, automated, and resilient platform for electronic business services. 3Line provides tailored technology solutions in the electronic business and financial-services space, including platforms such as Gravity Agent Banking and Talo Social Banking.

The engagement combined containerized application delivery, multi-Availability Zone deployment, resilient database storage, persistent object storage, versioned deployment artifacts, infrastructure as code, and operational monitoring. The resulting platform improved availability, recovery speed, deployment reliability, and control across Development, QA, and Production environments.

Client Background

3Line required a robust infrastructure foundation for secure and seamless software delivery. Its environment needed to support active application workloads, transactional data, operational assets, and continuous release activity while maintaining strict access control and recoverability during infrastructure or deployment incidents.

Multi-AZ Application Architecture

The production platform used Amazon ECS services in private subnets across two Availability Zones. An Application Load Balancer distributed traffic across healthy services, while public subnets hosted controlled ingress and NAT connectivity. AWS WAF and security groups reduced exposure at the application boundary, and the private-subnet design kept application services and database resources away from direct public access.

Resilient Data and Storage Architecture

Amazon RDS hosted the primary transactional database in a private subnet, with cross-Region read replication providing an additional recovery path for regional incidents. RDS database storage was encrypted and supported automated failover, snapshots, and backup recovery. Amazon S3 provided persistent object storage for application assets and operational data independently of the ECS compute layer, while Amazon ECR stored versioned container images used for deployment and rollback.

The ECS cluster used EC2-backed container hosts in the private subnets. Amazon EBS gp3 volumes provided operating-system, Docker/container-runtime, and host-level operational storage. The volumes were provisioned through Terraform and protected with scheduled snapshots and defined retention through AWS Backup, providing a recovery path for the supporting compute layer without treating host storage as the system of record for application data.

Amazon ElastiCache for Redis served as a performance cache layer between ECS services and the database. Redis accelerated repeated reads and transient application state, while Amazon RDS and Amazon S3 remained the durable systems of record.

Infrastructure as Code and Delivery Automation

Terraform defined the infrastructure configuration and enabled repeatable provisioning across segregated AWS environments. GitHub Actions built, tested, and deployed application changes, while Amazon ECR retained versioned images that could be promoted or rolled back through the release process. ECS rolling updates and controlled routing supported low-disruption releases and rapid restoration of a stable version.

Operational Management and Security

Amazon CloudWatch Logs and dashboards provided real-time visibility into application and infrastructure health, including latency, memory consumption, and container behavior. AWS Systems Manager supported patching, troubleshooting, runbooks, and controlled access to managed EC2 instances where applicable.

IAM roles were scoped by service and environment, and GitHub Actions used federated access rather than long-lived credentials. AWS WAF, Security Hub, GuardDuty, and IAM Access Analyzer strengthened the security and governance posture.

Storage and Recovery Flow

Disaster Recovery and Operational Continuity

The architecture supported recovery from service failures, configuration drift, infrastructure compromise, and Availability Zone disruption. ECS tasks were distributed across multiple Availability Zones and replaced when unhealthy. Stable container images were retrieved from Amazon ECR, EBS-backed ECS hosts were restored from protected snapshots when required, infrastructure was recreated through Terraform, and RDS replication and recovery controls protected transactional data. Amazon S3 retained persistent application and operational objects independently of the compute layer.

CloudWatch alarms, CloudTrail audit logging, and Systems Manager runbooks supported detection, diagnosis, and response. The recovery process enabled compromised environments to be rebuilt in under 15 minutes while maintaining controlled delivery across Development, QA, and Production.