update_release_radar.Dockerfile

# Edited from https://docs.aws.amazon.com/lambda/latest/dg/python-image.html#python-image-clients

# Define custom function directory
ARG FUNCTION_DIR="/function"

FROM python:3.12.0 as build-image

# Include global arg in this stage of the build
ARG FUNCTION_DIR

# Copy requirements
RUN mkdir -p ${FUNCTION_DIR}
WORKDIR ${FUNCTION_DIR}
COPY requirements.txt ${FUNCTION_DIR}

# Install the function's dependencies
RUN pip install --target ${FUNCTION_DIR} awslambdaric \
    && pip install --target ${FUNCTION_DIR} -r requirements.txt

# Copy function code
COPY . ${FUNCTION_DIR}
COPY .env ${LAMBDA_TASK_ROOT}

# Use a slim version of the base Python image to reduce the final image size
FROM python:3.12-slim

# Include global arg in this stage of the build
ARG FUNCTION_DIR

# Set working directory to function root directory
WORKDIR ${FUNCTION_DIR}

# Copy in the built dependencies
COPY --from=build-image ${FUNCTION_DIR} ${FUNCTION_DIR}

# Set runtime interface client as default command for the container runtime
ENTRYPOINT [ "/usr/local/bin/python", "-m", "awslambdaric" ]

# Pass the name of the function handler as an argument to the runtime
CMD [ "app.routines.update_release_radar.handler" ]