ARG BASE_RUNTIME FROM public.ecr.aws/lambda/python:$BASE_RUNTIME ARG FUNCTION_DIR="/var/task" RUN mkdir -p $FUNCTION_DIR COPY main.py $FUNCTION_DIR COPY layer_method.py $FUNCTION_DIR COPY __init__.py $FUNCTION_DIR COPY requirements.txt $FUNCTION_DIR RUN python -m pip install -r $FUNCTION_DIR/requirements.txt -t $FUNCTION_DIR