# debian:sid-slim is required for the build stage to support riscv64 (golang:bookworm does not). # For the runtime stage we use debian:bookworm-slim for stable, predictable package names. FROM debian:sid-slim AS build ARG version # Install build dependencies RUN apt-get update && apt-get install -y golang build-essential libsecret-1-dev libfido2-dev libcbor-dev # Build ADD https://github.com/ProtonMail/proton-bridge.git#${version} /build/ WORKDIR /build/ RUN make build-nogui vault-editor FROM debian:bookworm-slim LABEL maintainer="Dan Williams " EXPOSE 25/tcp EXPOSE 143/tcp # Monitor proton-bridge process health HEALTHCHECK --interval=30s --timeout=10s --retries=3 --start-period=60s \ CMD bash -c "pgrep -f proton-bridge || exit 1" # Install runtime dependencies RUN apt-get update \ && apt-get install -y --no-install-recommends socat pass libsecret-1-0 libfido2-1 ca-certificates \ && rm -rf /var/lib/apt/lists/* # Copy bash scripts COPY gpgparams entrypoint.sh /protonmail/ # Copy protonmail COPY --from=build /build/bridge /protonmail/ COPY --from=build /build/proton-bridge /protonmail/ COPY --from=build /build/vault-editor /protonmail/ # Prevent the bridge's built-in auto-updater from replacing the container binary at runtime. # Version management is handled externally via the update-check workflow. RUN chmod -w /protonmail/bridge /protonmail/proton-bridge /protonmail/vault-editor ENTRYPOINT ["bash", "/protonmail/entrypoint.sh"]