Real-World Microservices Use Cases

Deploying a Web Application with Microservices

A typical web application (like an e-commerce store) can be split into services such as:

• User Service (authentication & profiles)
• Product Service (catalog & inventory)
• Order Service (checkout & payment)
• Notification Service (emails & SMS)

Each service runs in its own container and communicates through REST or gRPC.

services:
  user-service:
    image: company/user-service

  order-service:
    image: company/order-service
    depends_on:
      - user-service

  product-service:
    image: company/product-service
    depends_on:
      - order-service

Event-Driven Microservices

Many systems use an event bus like Kafka or RabbitMQ to decouple services. For example:

• Order service publishes an event after an order is placed
• Inventory service listens to decrease stock
• Notification service sends confirmation email

This architecture improves scalability and resilience.

Docker Microservices Across Industries

FinTech

Banking systems use microservices for modularity — e.g., separate services for accounts, transfers, fraud detection, and notifications.

Healthcare

Electronic Health Record (EHR) systems manage services for patients, doctors, appointments, and prescriptions, deployed independently for compliance and updates.

IoT

Sensor data from devices is processed by microservices that handle real-time data ingestion, analysis, and alerting.

Data Science & ML

Models are deployed as isolated microservices with REST endpoints for prediction, version control, and CI/CD integration.

Microservices architecture using Docker offers flexibility, scalability, and maintainability. It’s the architecture of choice for modern, cloud-native applications.