Accelera
Cloud Infrastructure Modernization & DevOps Transformation
Executive Summary
We successfully delivered a comprehensive digital transformation project for a complex multi-service application. By migrating a fragile, instance-based legacy infrastructure to a fully automated, serverless architecture on AWS, we reduced operational overhead by 60% while significantly improving uptime and deployment velocity. This document outlines the technical architecture, automation strategies, and data migration methodologies implemented by our DevOps team.
Legacy Infrastructure State ("Earlier")
Prior to our engagement, the application ran on a static, manual setup that posed significant scalability and reliability risks. The infrastructure consisted of three fixed EC2 instances with tight coupling:
The Challenge
The legacy setup presented several critical bottlenecks:
High Risk of Downtime
The dependency on single servers for critical components (Nginx, Redis, Elasticsearch) meant zero redundancy.
Manual Deployments
Releases required manual SSH access, leading to human error and downtime.
Data Migration Complexity
Critical data in Redis and Elasticsearch needed to be extracted from the "Monolith" server and moved to distributed storage without data loss.
Scalability Limits
The static IP architecture prevented auto-scaling during traffic spikes.
Our Solution: Architecture & Technology Stack
We designed a Serverless Container Architecture using AWS Fargate to eliminate server management and ensure high availability.