ARG CUDA_VERSION="12.6.3"
ARG CUDNN_VERSION=""
ARG UBUNTU_VERSION="22.04"
ARG MAX_JOBS=4
ARG TARGETARCH

FROM nvidia/cuda:$CUDA_VERSION-cudnn$CUDNN_VERSION-devel-ubuntu$UBUNTU_VERSION AS base-builder

ARG TARGETARCH
ARG PYTHON_VERSION="3.11"
ARG PYTORCH_VERSION="2.6.0"
ARG CUDA="126"
ARG TORCH_CUDA_ARCH_LIST="7.0 7.5 8.0 8.6 9.0+PTX"

ENV PYTHON_VERSION=$PYTHON_VERSION
ENV TORCH_CUDA_ARCH_LIST=$TORCH_CUDA_ARCH_LIST
ENV UV_TORCH_BACKEND="cu${CUDA}"

RUN apt-get update \
    && apt-get install -y wget git build-essential ninja-build git-lfs libaio-dev pkg-config curl && rm -rf /var/lib/apt/lists/* \
    && git lfs install --skip-repo \
    && curl -LsSf https://astral.sh/uv/install.sh | sh

ENV PATH="/root/.local/bin:${PATH}"

RUN uv python install ${PYTHON_VERSION}

WORKDIR /workspace

RUN uv venv --no-project --relocatable axolotl-venv

ENV PATH="/workspace/axolotl-venv/bin:${PATH}"

RUN uv pip install packaging setuptools wheel psutil \
    && uv pip install torch==${PYTORCH_VERSION} torchvision \
    && uv pip install awscli pydantic

RUN if [ "$TARGETARCH" = "amd64" ]; then \
        uv pip install --no-build-isolation "causal_conv1d @ git+https://github.com/Dao-AILab/causal-conv1d.git@main"; \
        uv pip install "mamba_ssm @ git+https://github.com/state-spaces/mamba.git@main"; \
    fi

# Map Python version (e.g., 3.12 -> cp312)
RUN PYTHON_CP="cp$(echo $PYTHON_VERSION | tr -d '.')" && \
    # Map PyTorch version (e.g., 2.9.1 -> torch2.9, 2.10.0 -> torch2.10)
    TORCH_TAG="torch$(echo $PYTORCH_VERSION | grep -oP '^\d+\.\d+')" && \
    # Map architecture
    case "$TARGETARCH" in \
        amd64) ARCH_TAG="x86_64" ;; \
        arm64) ARCH_TAG="aarch64" ;; \
        *) echo "Unsupported architecture: $TARGETARCH"; exit 1 ;; \
    esac && \
    WHL_VERSION="v0.7.16" && \
    WHL_FILE="flash_attn-2.8.3+cu${CUDA}${TORCH_TAG}-${PYTHON_CP}-${PYTHON_CP}-linux_${ARCH_TAG}.whl" && \
    wget -nv "https://github.com/mjun0812/flash-attention-prebuild-wheels/releases/download/${WHL_VERSION}/${WHL_FILE}" && \
    uv pip install --no-cache-dir "${WHL_FILE}" && \
    rm "${WHL_FILE}"