The Docker Compose Container Sizer formats container port exposure rules, memory resource limits, and restart directives into production-ready Docker Compose YAML service snippets.

### Container Sizing Parameters Configuring containerized microservices requires balancing external access with host system stability: - **Host Port to Container Port Binding**: Maps host network interfaces to container listener ports (e.g., `8080:80`). Binding to an alternate host port prevents collisions with default host web services. - **Memory Limit Allocation**: Sets explicit memory caps in megabytes (MB) and gigabytes (GB) to prevent memory leak cascades from taking down neighboring containers. - **Restart Directives**: Applies `restart: unless-stopped` to ensure services automatically reboot upon host restarts or unhandled container crashes while allowing manual maintenance stops.

### Worked Example Configuring a web service with Host Port 8080, Container Port 80, and a 512 MB memory limit: ```yaml services: web-service: image: nginx:alpine ports: - "8080:80" restart: unless-stopped deploy: resources: limits: memory: 512M ```

### Local Browser Execution All YAML formatting and memory unit conversions execute strictly on your local machine using client-side JavaScript. No infrastructure topologies, private network ports, or deployment configurations are sent over the network.