# docker model start-runner
**Descripción:** Start Docker Model Runner (Docker Engine only)
**Uso:** `docker model start-runner`
## Descripción
This command starts the Docker Model Runner without pulling container images. Use this command to start the runner when you already have the required images locally.
For the first-time setup or to ensure you have the latest images, use `docker model install-runner` instead.
## Opciones
| Opción | Predeterminado | Descripción |
| ------------------------------------------------------------- | ----------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| | `--backend` | | Specify backend (llama.cpp|vllm|diffusers). Default: llama.cpp |
| `--debug` | | Enable debug logging |
| `--do-not-track` | | Do not track models usage in Docker Model Runner |
| `--gpu` | `auto` | Specify GPU support (none|auto|cuda|rocm|musa|cann) |
| `--host` | `127.0.0.1` | Host address to bind Docker Model Runner |
| `--port` | | Docker container port for Docker Model Runner (default: 12434 for Docker Engine, 12435 for Cloud mode)
|
| `--proxy-cert` | | Path to a CA certificate file for proxy SSL inspection |
| `--tls` | | Enable TLS/HTTPS for Docker Model Runner API |
| `--tls-cert` | | Path to TLS certificate file (auto-generated if not provided) |
| `--tls-key` | | Path to TLS private key file (auto-generated if not provided) |
| `--tls-port` | | TLS port for Docker Model Runner (default: 12444 for Docker Engine, 12445 for Cloud mode)
|