Beyond Migration: 150+ Apps' Journey to the Cloud with Zero Downtime

We helped the client accelerate cloud migration, enhancing data analytics, scalability, and security while addressing legacy issues.

Friction Points

• Absence of legacy applications, complexities & outdated tech stack resulting in security & legal vulnerabilities.
• Lack of processes and technologies for scaling IT and product engineering requirements to meet market demands driven.
• Fragmented data gathering & analytics hinder the decision-making process.
• Lack of scalability of the existing applications and infrastructure.
• Absence of standardization leads to unpredictable and cumbersome support.

Solution Approach

• Enterprise cloud migration solution with a data-driven plan and collaboration with business stakeholders.
• Comprehensive framework prioritizing customer-centric applications for scale and security.
• Integrated approach leveraging cloud-first and secure engineering & deployment practices.
• Automation to accelerate the development, deployment, testing, and operations.

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General                                                                                                                                                       

• Ensure zero downtime for business & end customers.  
• Migration decision based on data analysis & discussion with business.
• Deep dive into the product to get a 360⁰ view of the application.

Database

• Redesign & rationalization of database (DB) & its relevant services.
• Resizing based on current usage and structure analysis.
• Standardized the database layer with the implementation of AWS Aurora.
• Enhanced DB load balancing with a focus on read operations.
• Migration of Myisan to Innodb storage engine.
• Upgrade of version MySQL 5.6 to MySQL 5.7.

Security

• Mandatory WAS review for every application using Qualys.
• Mandatory resolution of any L5 & L4 reported issue.
• Address major vulnerabilities like SQL Injection, and cross-site scripting (XSS) at infra and application.
• Implementation of secure protocols like HTP to HTTPS.
• Implementation of WAF as the first level of defense at the infra side

Infrastructure

• Re-engineer and provision lower env infra for all applications.
• Prod infra sizing based on usage data from business & current load
• Automated infra build using Terraform (both for data center and old AWS deployed).
• Build standardized & automated CI/CD pipelines for all applications.
• Uniform & standardized asset tagging for better cost visibility.
• Upgrade all infra-OS with a baseline and approved AMI.
• Implementation of WAF as the first-level security gate

Application Ecosystem

• Security fixes at the code level (e.g. SQL Injection, XSS, etc.).
• Decoupling of individual authentication systems to a centralized system.
• Fixing of application compile issues.
• Major bug fixes from backlog.
• Build load model (current & projected) for all applications based on usage data sourced from business and existing logs.
• Redevelop applications that scratch up wherever needed.

Testing

• Deep dive to understand the end-to-end functional use cases of the applications.
• Mandatory manual testing of all applications.
• Review, modify & recreate automation test cases to reach >90^% coverage.
• Coordinate with the business users on UAT.

Impact

• Built standardized and customizable cloud architecture.
• Enables seamless data migration at one click.
• Provides 360^o monitoring & 24x7 support and implementation.
• Developed the cloud transformation roadmap for a seamless migration process in the future.
• Created migration and application type matrix for a detailed overview of the workflow process.