protonmail-bridge-nextcoud-podman/build/Dockerfile

# Use carlosedp/golang for riscv64 support
FROM golang:1.21-bookworm AS build

# Install dependencies
RUN apt-get update && apt-get install -y git build-essential libsecret-1-dev

# Build
WORKDIR /build/
COPY build.sh VERSION /build/
RUN bash build.sh

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

EXPOSE 25/tcp
EXPOSE 143/tcp

# Install dependencies and protonmail bridge
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 socat pass libsecret-1-0 ca-certificates

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

# Copy protonmail
COPY --from=build /build/proton-bridge/bridge /protonmail/
COPY --from=build /build/proton-bridge/proton-bridge /protonmail/

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