Running Mailbagit in AWS Lambda (Docker/Python)

Dockerfile

FROM --platform=linux/amd64 python:3.12-bookworm

# how to set up an alternative base image for lambda 
# https://docs.aws.amazon.com/lambda/latest/dg/images-create.html#images-ric

COPY ./ ${LAMBDA_TASK_ROOT}/

ENV TZ=America/New_York \
    DEBIAN_FRONTEND=noninteractive \
    MAILBAGIT_LOG_LEVEL=info \
    IN_CONTAINER=true

RUN apt-get -y update
RUN apt-get -y upgrade
RUN apt-get install -y curl

RUN apt-get install -y gcc dpkg-dev wget

# Lambda runtime interface client
RUN pip install awslambdaric

# install dependencies
RUN pip install -r requirements.txt

# wkhtmltopdf deps
RUN apt-get install -y xfonts-75dpi xfonts-base

RUN pip install libpff-python==20231205

RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub > linux_signing_key.pub
RUN install -D -o root -g root -m 644 linux_signing_key.pub /etc/apt/keyrings/linux_signing_key.pub
RUN sh -c 'echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/linux_signing_key.pub] http://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google-chrome.list'
RUN apt-get update -y 
RUN apt-get install -y google-chrome-stable

# Old libssl dependency of wkhtmltopdf
RUN curl -L -o /tmp/libssl1.1_1.1.1w-0+deb11u1_amd64.deb \
    http://ftp.us.debian.org/debian/pool/main/o/openssl/libssl1.1_1.1.1w-0+deb11u1_amd64.deb
RUN dpkg -i /tmp/libssl1.1_1.1.1w-0+deb11u1_amd64.deb

RUN curl -L -o /tmp/wkhtmltox_0.12.6-1.buster_amd64.deb \ 
    https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkhtmltox_0.12.6-1.buster_amd64.deb
RUN dpkg -i /tmp/wkhtmltox_0.12.6-1.buster_amd64.deb

RUN pip install mailbagit -U

# 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 [ "msgToPdf.handler" ]