Hands-on LabMid-Level
Migrate Monolith to Microservices
Verify engineers can actually decompose monoliths — not just diagram them.
Decompose a FastAPI monolith into containerized microservices using Docker Compose. Implement service-to-service HTTP communication, independent databases, and validate end-to-end request flow across isolated services.
⏱️ 75 min
📝 2 exercises
⭐ 5/5
Eliminate false positives. 100% verified skills.
Real Environment: FastAPI, Docker Compose, PostgreSQL, Python, Linux CLI
The Stack
Production-Grade Environment
FastAPI
Python web framework used in both the monolith and the decomposed microservices.
Docker Compose
PostgreSQL
Python
Linux
Role Relevancy
How this lab maps to your role
High Match95%
Backend Developer
Core
High Match88%
DevOps Engineer
Core
Good Match72%
Software Architect
Relevant
Good Match60%
Platform Engineer
Relevant
Fair Match42%
Full-Stack Developer
Supplementary
Technical Assessment Guide
Technical Assessment (Migrate Monolith to Microservices)
When to use this lab
- ✓Hiring Backend DevelopersValidates the ability to decompose a monolithic application into independent microservices with proper API boundaries and communication.
- ✓Screening DevOps EngineersTests Docker Compose proficiency including multi-service orchestration, networking, and container lifecycle management.
- ✓Assessing Migration CompetencyMeasures practical ability to migrate from monolith to microservices while maintaining end-to-end functionality.
Skills Evaluated
Service DecompositionDocker Compose NetworkingInter-Service CommunicationDatabase Isolation
Who is this for?
Built for Both Sides
Corporate
For Recruiters & Hiring Managers
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Reduce mis-hires with proof of hands-on ability
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Individual
For Professionals & Learners
- Build real portfolio experience, not toy projects
- Practice in safe, real cloud environments
- Earn verifiable credentials to share on LinkedIn
- Stand out in technical interviews with proof of skills
Common Questions
Frequently Asked Questions
What does this monolith migration lab involve?
You will decompose a FastAPI monolith into three independent microservices (users, orders, notifications) using Docker Compose, implement inter-service HTTP communication, and validate end-to-end request flow.
How long does the microservices migration lab take?
The lab is designed for 75 minutes. This includes analyzing the monolith, creating Dockerfiles for each service, configuring Docker Compose, implementing service-to-service communication, and validating functionality.
What level of experience is needed for this lab?
This lab targets mid-level backend and DevOps engineers. You should be comfortable with Python, FastAPI, Docker Compose, and understand basic microservices architecture patterns.
How is inter-service communication validated?
Automated validation checks that services can communicate via HTTP within the Docker Compose network. The order service must call the user service to verify users, and notifications must be triggered across services.
Is this lab suitable for evaluating software architects?
Yes, this lab is relevant for architecture roles. It tests practical decomposition skills, service boundary decisions, and understanding of data isolation patterns in microservices.
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