Add CUDA docker version

README.md

@@ -164,6 +164,16 @@ docker-compose up -d --build
 
 > Feel free to change the [`docker-compose.yml`](https://github.com/LibreTranslate/LibreTranslate/blob/main/docker-compose.yml) file to adapt it to your deployment needs, or use an extra `docker-compose.prod.yml` file for your deployment configuration.
 
+### CUDA
+
+You can use hardware acceleration to speed up translations on a GPU machine with CUDA 11.2 and [nvidia-docker](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/install-guide.html) installed.
+
+Run this version with:
+
+```bash
+docker-compose -f docker-compose.cuda.yml up -d --build
+```
+
 ## Arguments
 
 | Argument                    | Description                                                                                                 | Default              | Env. name                    |

docker-compose.cuda.yml

+version: "3"
+
+services:
+  libretranslate-cuda:
+    container_name: libretranslate-cuda
+    build:
+      context: .
+      dockerfile: docker/Dockerfile.cuda
+    restart: unless-stopped
+    ports:
+      - 5000:5000
+    command: --gpus all

docker/Dockerfile.cuda

+FROM nvidia/cuda:11.2.2-devel-ubuntu20.04
+
+ENV ARGOS_DEVICE_TYPE cuda
+ARG with_models=true
+ARG models=
+
+WORKDIR /app
+
+ARG DEBIAN_FRONTEND=noninteractive
+RUN apt-get update -qq \
+    && apt-get -qqq install --no-install-recommends -y libicu-dev libaspell-dev libcairo2 libcairo2-dev pkg-config gcc g++ python3.8-dev python3-pip libpython3.8-dev\
+    && apt-get clean \
+    && rm -rf /var/lib/apt
+
+RUN pip3 install --upgrade pip
+
+COPY . .
+
+RUN ln -s /usr/bin/python3 /usr/bin/python
+
+RUN if [ "$with_models" = "true" ]; then  \
+    # install only the dependencies first
+    pip3 install -e .;  \
+    # initialize the language models
+    if [ ! -z "$models" ]; then \
+    ./install_models.py --load_only_lang_codes "$models";   \
+    else \
+    ./install_models.py;  \
+    fi \
+    fi
+
+# Install package from source code
+RUN pip3 install . \
+    && pip3 cache purge
+ENV LD_LIBRARY_PATH=/usr/local/cuda/lib:/usr/local/cuda/lib64
+EXPOSE 5000
+ENTRYPOINT [ "libretranslate", "--host", "0.0.0.0" ]