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# Etapa base (comum a CPU e GPU)
FROM python:3.10-buster AS base

RUN apt-get update && apt-get install -y \
    git \
    tk \
    tk-dev \
    x11-xserver-utils \
    ffmpeg \
    pciutils \
    && apt-get clean && rm -rf /var/lib/apt/lists/*

WORKDIR /root_dir
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 8501
ENV STREAMLIT_SERVER_HEADLESS=true
ENV PYTHONUNBUFFERED=1

CMD ["streamlit", "run", "./app/streamlit.py", "--server.maxUploadSize=2048"]

# ---------------------------
# Etapa para CPU
# ---------------------------
FROM base AS cpu
# Herda tudo da base - nada extra necessário

# ---------------------------
# Etapa para GPU
# ---------------------------
FROM nvidia/cuda:12.0.1-base-ubuntu22.04 AS gpu

ARG DEBIAN_FRONTEND=noninteractive

RUN apt-get update && apt-get install -y \
    python3.10 \
    python3.10-venv \
    python3-pip \
    git \
    tk \
    tk-dev \
    x11-xserver-utils \
    ffmpeg \
    pciutils \
    python3-tk \
    nvidia-cuda-toolkit \
    libcudnn8 \
    libcudnn8-dev \
    && apt-get clean && rm -rf /var/lib/apt/lists/*

# Define python3.10 como padrão
RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.10 1

WORKDIR /root_dir
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 8501
ENV STREAMLIT_SERVER_HEADLESS=true
ENV PYTHONUNBUFFERED=1

CMD ["streamlit", "run", "./app/streamlit.py", "--server.maxUploadSize=2048"]