protonmail-bridge-docker/deb/Dockerfile

FROM ubuntu:jammy
LABEL maintainer="Xiaonan Shen <s@sxn.dev>"

EXPOSE 25/tcp
EXPOSE 143/tcp


RUN --mount=target=/var/lib/apt/lists,type=cache,sharing=locked \
    --mount=target=/var/cache/apt,type=cache,sharing=locked \
    rm -f /etc/apt/apt.conf.d/docker-clean \
    && apt-get update \
    && apt-get -y --no-install-recommends install \
        libc6

WORKDIR /protonmail

# Copy bash scripts
COPY gpgparams install.sh entrypoint.sh VERSION /protonmail/

# Install dependencies and protonmail bridge
RUN bash install.sh

ENTRYPOINT ["bash", "/protonmail/entrypoint.sh"]