Docker MCP Server

Docker MCP Server

An MCP server that enables managing Docker containers through natural language commands, allowing users to create, list, and delete containers. It facilitates automated container orchestration and integrates with VS Code via the Cline extension.

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Docker MCP Server

Servidor MCP para controlar Docker con lenguaje natural usando Cline y modelos gratuitos. Esta demostración trata de simular la automatización de la orquestación de contenedores en Docker.

Instalación

npm install

Configuración

1. Instalar Cline en VS Code

  • Abre VS Code
  • Ve a Extensiones (Ctrl+Shift+X)
  • Busca "Cline" e instálalo

2. Configurar modelo gratuito

Crea/edita %USERPROFILE%\.continue\config.json:

{
  "models": [
    {
      "title": "Kat Coder Pro",
      "provider": "openai",
      "model": "kat-coder-pro",
      "apiBase": "https://api.kat.ai/v1"
    }
  ],
  "mcpServers": {
    "docker": {
      "command": "node",
      "args": ["C:\\Users\\Rodri\\OneDrive\\Desktop\\Docker-MCP\\app\\index.js"]
    }
  }
}

3. Configurar Cline MCP

En VS Code, abre Cline → Settings → MCP Servers y pega:

{
  "mcpServers": {
    "docker": {
      "command": "node",
      "args": ["C:\\Users\\Rodri\\OneDrive\\Desktop\\Docker-MCP\\app\\index.js"]
    }
  }
}

Uso

  1. Abre Cline en VS Code
  2. Escribe comandos en lenguaje natural

Herramientas disponibles

  • create_containers: Crea múltiples contenedores Docker
  • list_containers: Lista todos los contenedores activos
  • delete_container: Elimina un contenedor por nombre

Ejemplos de prompts

  • "Crea 3 contenedores de nginx en el puerto 8080"
  • "Lista todos los contenedores"
  • "Elimina el contenedor ai_container_0"
  • "Crea 2 contenedores de redis en el puerto 6379"

Casos de uso y manejo de errores

✅ Casos exitosos

  • Prompt completo: "Crea 2 contenedores de nginx en puerto 8080"
  • Imagen con versión: "Crea 1 contenedor de postgres:15 en puerto 5432"
  • Eliminar contenedor: "Elimina el contenedor ai_container_1"

❌ Casos de error comunes

Parámetros faltantes

  • Prompt: "Crea contenedores de nginx"
  • Error: El modelo debe solicitar puerto y cantidad
  • Solución: Especificar todos los parámetros requeridos

Puerto ocupado

  • Problema: Crear contenedores en puerto ya usado
  • Comportamiento: Los puertos se incrementan automáticamente (8080, 8081, 8082...)
  • Ejemplo: Si pides 3 contenedores en puerto 8080, se crean en 8080, 8081, 8082

Imagen inexistente

  • Prompt: "Crea contenedor de imagen_falsa en puerto 3000"
  • Error: Docker no puede descargar la imagen
  • Mensaje: "❌ Error: [mensaje de Docker]"

Contenedor inexistente para eliminar

  • Prompt: "Elimina el contenedor que_no_existe"
  • Error: Docker no encuentra el contenedor
  • Mensaje: "❌ Error: No such container: que_no_existe"

Docker no ejecutándose

  • Problema: Docker Desktop cerrado
  • Error: "Cannot connect to the Docker daemon"
  • Solución: Iniciar Docker Desktop

Validaciones automáticas

  • Parámetros requeridos: image, count, port son obligatorios para crear contenedores
  • Tipos de datos: count debe ser número, port debe ser número
  • Nombres únicos: Los contenedores se nombran ai_container_0, ai_container_1, etc.
  • Puertos incrementales: Evita conflictos de puertos automáticamente

Requisitos

  • Node.js instalado
  • Docker Desktop ejecutándose
  • VS Code con extensión Cline

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