dx-cli 0.4.0

Developer experience CLI for Docker Compose monorepos — service scaffolding, port management, and project health checks

dx — Developer Experience CLI

A zero-dependency CLI for managing Docker Compose monorepos. Handles service lifecycle, port management, code generation, and project health checks.

Install

pip install dx-cli

Or install from source:

pip install -e dev-cli/

Quick Start

dx up                     # Start all services
dx dev                    # Start with hot-reload
dx down                   # Stop everything
dx ps                     # Show running containers
dx logs service-data      # Stream logs

Commands

Docker Lifecycle

Command	Description
dx up [targets...]	Start services (prod mode)
dx dev [targets...]	Start services (dev mode + hot-reload)
dx down [targets...]	Stop and remove containers
dx restart [targets...]	Restart containers
dx reset [targets...]	Stop + wipe volumes
dx ps	Show running containers
dx logs [targets...]	Stream container logs
dx pull [targets...]	Pull images
dx reload <service>	Recompile Java service for DevTools restart

Build / Test / Lint

Command	Description
dx build [targets...]	Build services (all, common, or names)
dx test [targets...]	Run tests (all or service names)
dx lint [targets...]	Run linters (all, frontend, python)

Service Scaffolding

Command	Description
dx generate python <name>	Scaffold a new Python/FastAPI service
dx generate java <name>	Scaffold a new Java/Spring Boot service

Generated services include Dockerfiles, compose entries, health checks, config, and agent guides.

Port Management

Command	Description
dx ports	Show port assignments
dx ports pin <svc> <port>	Pin a service to a specific port
dx ports reset [service]	Clear port reservations

Ports are auto-allocated for all services (infra, services, apps) and persisted in .dx/ports.json.

Project Health

Command	Description
dx doctor	Check project structure, Dockerfiles, and conventions
dx doctor --fix	Auto-fix issues in compose files and Dockerfiles

Checks include:

• Compose service naming conventions
• Required files per service type (Dockerfile, pom.xml, pyproject.toml)
• Java Dockerfile module sync with pom.xml
• Hardcoded ports (auto-fixable)
• Missing Dockerfile references

Proxy & DNS

Command	Description
dx proxy start	Start reverse proxy on :7355
dx proxy stop	Stop reverse proxy
dx hosts setup	Add *.dx.localhost DNS entries

Access services at http://<service>.dx.localhost:7355.

Target Resolution

Targets can be:

• Group names: infra, services, apps
• Service names: service-data, infra-postgres
• Shorthand: data, ai, frontend
• Glob patterns: service-d*, app-*-ui

Compose File Convention

docker-compose.infra.yml          # Infrastructure (prefix: infra-*)
docker-compose.services.yml       # Backend services (prefix: service-*)
docker-compose.apps.yml           # Frontend apps (prefix: app-*)
docker-compose.dev.services.yml   # Dev overlay for services
docker-compose.dev.apps.yml       # Dev overlay for apps

Requirements

• Python 3.11+
• Docker with Compose v2
• No Python dependencies (zero-dependency CLI)

License

MIT