Docker para NestJS (Dev)

Docker for NestJS development eliminates host dependencies by containerizing Node.js, npm, and your application. The Skill provisions a Dockerfile and docker-compose configuration that installs dependencies inside the container, uses anonymous volumes for node_modules, and enables hot-reload through proper volume mounting—so you develop without any local Node.js installation.

Yes, hot-reload works with Docker when you configure volumes correctly. The Skill sets up docker-compose with source-code volume mounts that trigger file watchers inside the container, while keeping node_modules in an anonymous volume to avoid permission and performance issues.

.dockerignore prevents unnecessary files from being copied into your Docker image during the build process. For NestJS projects, it excludes node_modules, .git, and local cache files, reducing image size and build time while ensuring clean in-container installations.

EACCES errors occur when the container's user lacks write permissions on mounted volumes. The Skill addresses this by mounting node_modules as an anonymous volume instead of from the host, and configuring docker-compose to handle permissions correctly for npm install and hot-reload.

Yes, the Skill includes optional VS Code Dev Containers configuration, allowing you to open your NestJS project in a containerized environment directly from VS Code for a seamless development experience that mirrors your docker-compose setup.

The Skill applies to both new NestJS projects and existing setups. It provides the Dockerfile, docker-compose configuration, and .dockerignore file needed to transition any NestJS project to zero-host-dependency Docker development with proper volume handling.