Dockerfile

FROM python:3.11-slim

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    wget \
    gnupg \
    curl \
    ca-certificates \
    sudo \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user
RUN useradd -ms /bin/bash mlflowuser && \
    echo "mlflowuser ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/mlflowuser

# Install MinIO server and client
RUN wget https://dl.min.io/server/minio/release/linux-amd64/minio \
    && chmod +x minio \
    && mv minio /usr/local/bin/minio

RUN wget https://dl.min.io/client/mc/release/linux-amd64/mc \
    && chmod +x mc \
    && mv mc /usr/local/bin/mc

# Install MLflow and MinIO client library
RUN pip install --no-cache-dir \
    mlflow>=3.1 \
    boto3==1.37.25 \
    psycopg2-binary==2.9.10 \
    PyMySQL==1.1.0

# Set environment variables for MinIO
ENV MINIO_ROOT_USER=minioadmin
ENV MINIO_ROOT_PASSWORD=minioadmin
ENV MINIO_DOMAIN=hf.space
ENV AWS_ACCESS_KEY_ID=minioadmin
ENV AWS_SECRET_ACCESS_KEY=minioadmin
ENV MLFLOW_S3_ENDPOINT_URL=http://localhost:9000
ENV BUCKET_NAME=mlflow

# Create directories and set permissions
RUN mkdir -p /tmp/minio /tmp/mlflow && \
    chown -R mlflowuser:mlflowuser /tmp && \
    chmod -R 777 /tmp

# Create a home directory for mc config
RUN mkdir -p /home/mlflowuser/.mc && \
    chown -R mlflowuser:mlflowuser /home/mlflowuser

# Switch to non-root user
USER mlflowuser
WORKDIR /home/mlflowuser

# Create a setup script
RUN echo '#!/bin/bash \n\
minio server /tmp/minio --console-address ":9001" & \n\
sleep 5 \n\
# Configure MinIO client and create bucket \n\
mc alias set myminio http://localhost:9000 ${MINIO_ROOT_USER} ${MINIO_ROOT_PASSWORD} \n\
mc mb myminio/${BUCKET_NAME} --ignore-existing \n\
# Start MLflow server with MinIO as artifact store \n\
mlflow server \
--backend-store-uri /tmp/mlflow \
--default-artifact-root s3://${BUCKET_NAME}/ \
--host 0.0.0.0 \
--port 7860 \
' > /home/mlflowuser/start.sh && chmod +x /home/mlflowuser/start.sh

# Expose ports
EXPOSE 7860 9000 9001

# Start services
CMD ["/home/mlflowuser/start.sh"]