# syntax=docker/dockerfile:1.7

# Pristine CUDA builder image:
# - Based on NVIDIA CUDA devel (Ubuntu 22.04)
# - Installs toolchain and Rust
# - No source copied, no build performed
#   Use this image in CI to mount your workspace and build artifacts.

ARG CUDA_TAG=12.9.0
FROM nvcr.io/nvidia/cuda:${CUDA_TAG}-devel-ubuntu22.04
ARG CUDA_TAG
ENV CUDA_TAG=${CUDA_TAG}

# System dependencies for building Rust/CUDA projects
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        curl \
        ca-certificates \
        pkg-config \
        build-essential \
        libssl-dev \
        git \
        clang \
        cmake \
    && rm -rf /var/lib/apt/lists/*

# Install Rust (stable, minimal profile)
ENV RUSTUP_HOME=/opt/rustup \
    CARGO_HOME=/opt/cargo \
    CUDA_HOME=/usr/local/cuda \
    CARGO_TERM_COLOR=always \
    PATH=/opt/cargo/bin:/usr/local/cuda/bin:${PATH}
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
    | sh -s -- -y --profile minimal --default-toolchain stable && \
    rustc --version && cargo --version

# Working directory for consumers (CI jobs mount source here)
WORKDIR /workspace

# Notes:
# - CI should use this image as a base and run cargo build inside the workspace.
# - Optional environment knobs like CUDA_ARCH, MINER_CUDA_ALLOW_UNSUPPORTED_COMPILER,
#   MINER_NVCC_CCBIN can be provided at runtime as needed.