ARG ECR_ENDPOINT FROM $ECR_ENDPOINT/sagemaker-xgboost:1.5-1-cpu-py3 COPY requirements.txt requirements.txt COPY digital_twin.py /opt/ml/code/digital_twin.py COPY quantile_regression.py /opt/ml/code/quantile_regression.py COPY train.py /opt/ml/code/train.py RUN python3 -m pip install -r requirements.txt ENV SAGEMAKER_PROGRAM train.py