Dres4Win Case Study — Summary

Chris Phan

2 min readFeb 13, 2021

For my learning purposes

Overview

Web-base company allows company organize & manage their personal wardrobe using web & mobile
Cultivate social network user <-> designer <-> retailer
Monetize their services via advertising, ecommerce, referrals, and freemium app models
Grow from few servers -> hundred servers + apps

They want growth + company’s desire to innovate faster => want a full migration to cloud

Solution concept

First phase dev, test and DR
Not sure which components of their architecture they can migrate as is
Not sure which components they need to change before migrating them

Existing technical environment

All service running on Ubuntu v16.04

Databases MySQL
Compute 40 web application servers (Tomcat + Nginx)
Apache Hadoop/Spark servers 20
Rabbit MQ servers
Miscellaneous servers: Jenkins, monitoring, bastion hosts, security scanners
Storage appliances: iSCSI, SAN-MySQL, NAS

Business requirements

reliable + reproducible env => scaled parity of production
IAM best practice
Agility & speed of innovation through rapid provisions of new resources
Analyze & optimize architect

Technical requirements

Easy create non-production in cloud
Implement an automation framework for provision resources in the cloud
CICD for both on-premise & cloud
Support failover
Encrypt data at rest & transit
Support private connection between datacenter & cloud env

Executive environments

Concern about the ability of scale & contain costs with current infra
Concern about the current competitor
The highest traffic pattern is in the morning & weekend evening and others is 80% idle

Currently, capital expenditure exceed quarterly projections. Migrating to cloud can cause initial increase in spending
Next five year achieve a reduction of 30–50 % current model