# syntax=docker/dockerfile:1 # check=skip=FromPlatformFlagConstDisallowed,RedundantTargetPlatform # ***************** # Base image for planner & builder # ***************** FROM --platform=$BUILDPLATFORM rust:slim-trixie AS base ENV DEBIAN_FRONTEND="noninteractive" \ BINSTALL_DISABLE_TELEMETRY=true \ CARGO_TERM_COLOR=always \ CARGO_NET_RETRY=10 \ CARGO_NET_GIT_FETCH_WITH_CLI=true \ LANG=C.UTF-8 \ TZ=UTC \ TERM=xterm-256color \ AWS_LC_SYS_PREBUILT_NASM=1 # With zig, we only need libclang and make. ca-certificates is required for curl # to verify HTTPS downloads (zig tarballs, crates.io, etc). RUN \ --mount=type=cache,target=/var/cache/apt,sharing=locked \ --mount=type=cache,target=/var/lib/apt,sharing=locked \ rm -f /etc/apt/apt.conf.d/docker-clean && \ echo 'Binary::apt::APT::Keep-Downloaded-Packages "true";' >/etc/apt/apt.conf.d/keep-cache && \ apt-get update && \ apt-get install -yq --no-install-recommends ca-certificates curl git jq xz-utils make libclang-19-dev # Zig is pinned to 0.13.0. Zig 0.14+ changed how its default target ABI is # resolved for `x86_64-linux-gnu`-style triples, and on this dependency tree # (aws-lc-sys, libsqlite3-sys, rust-std 1.87+) that surfaces as ld.lld # undefined references to glibc 2.33+ symbols. Zig 0.13 produces binaries with # a max glibc ref of ~2.28 which stays compatible with Debian 11 / RHEL 8. RUN \ ZIG_VERSION=0.13.0 && \ curl --retry 5 -fsSL "https://ziglang.org/download/${ZIG_VERSION}/zig-linux-$(uname -m)-${ZIG_VERSION}.tar.xz" | tar -J -x -C /usr/local && \ ln -s "/usr/local/zig-linux-$(uname -m)-${ZIG_VERSION}/zig" /usr/local/bin/zig && \ zig version # Install cargo-binstall RUN curl --retry 5 -fL --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/cargo-bins/cargo-binstall/main/install-from-binstall-release.sh | bash # Install cargo-chef & sccache & cargo-zigbuild. Versions are pinned so that an # upstream release without prebuilt binaries for this platform cannot silently # turn this into a from-source build, and the `compile` strategy is disabled # because that fallback needs an OpenSSL toolchain this image does not carry: # it burns minutes and then fails. A transient GitHub fetch failure is retried. RUN \ for attempt in 1 2 3; do \ cargo binstall --no-confirm --disable-strategies compile \ cargo-chef@0.1.78 sccache@0.17.0 cargo-zigbuild@0.23.2 && break; \ echo "cargo binstall attempt ${attempt} failed, retrying"; \ sleep $((attempt * 15)); \ done && \ command -v cargo-chef && command -v sccache && command -v cargo-zigbuild # ***************** # Planner # ***************** FROM base AS planner WORKDIR /app COPY . . # Generate recipe file RUN cargo chef prepare --recipe-path recipe.json # ***************** # Builder # ***************** FROM base AS builder WORKDIR /app COPY --from=planner /app/recipe.json recipe.json ARG TARGET ARG BUILD_ENV SHELL ["/bin/bash", "-o", "pipefail", "-c"] # Install toolchain and specify some env variables RUN \ rustup set profile minimal && \ rustup target add ${TARGET} && \ mkdir -p artifact && \ touch /env-cargo && \ if [ ! -z "${BUILD_ENV}" ]; then \ echo "export ${BUILD_ENV}" >> /env-cargo; \ echo "Setting up ${BUILD_ENV}"; \ fi # Cargo-chef cache layer RUN \ --mount=type=secret,id=ACTIONS_RESULTS_URL,env=ACTIONS_RESULTS_URL \ --mount=type=secret,id=ACTIONS_RUNTIME_TOKEN,env=ACTIONS_RUNTIME_TOKEN \ --mount=type=cache,target=/usr/local/cargo/registry \ --mount=type=cache,target=/usr/local/cargo/git \ source /env-cargo && \ cargo chef cook --recipe-path recipe.json --zigbuild --release --target ${TARGET} -p proxy # Copy the source code COPY . . ENV RUSTC_WRAPPER="sccache" \ SCCACHE_GHA_ENABLED=true # Build RUN \ --mount=type=secret,id=ACTIONS_RESULTS_URL,env=ACTIONS_RESULTS_URL \ --mount=type=secret,id=ACTIONS_RUNTIME_TOKEN,env=ACTIONS_RUNTIME_TOKEN \ --mount=type=cache,target=/usr/local/cargo/registry \ --mount=type=cache,target=/usr/local/cargo/git \ source /env-cargo && \ cargo zigbuild --release --target ${TARGET} -p proxy && \ mv /app/target/${TARGET}/release/proxy /app/artifact/proxy # ***************** # Binary stage # ***************** FROM scratch AS binaries COPY --from=builder /app/artifact / # ***************** # Runtime image for GNU targets # ***************** FROM --platform=$TARGETPLATFORM docker.io/library/debian:trixie-slim AS gnu RUN export DEBIAN_FRONTEND=noninteractive && \ apt-get update && \ apt-get install -yq --no-install-recommends ca-certificates curl tzdata libcap2-bin && \ rm -rf /var/lib/apt/lists/* && \ groupadd -r -g 2000 stalwart-proxy && \ useradd -r -u 2000 -g 2000 -s /usr/sbin/nologin -M stalwart-proxy && \ mkdir -p /etc/proxy && \ chown stalwart-proxy:stalwart-proxy /etc/proxy COPY --from=builder --chmod=0755 /app/artifact/proxy /usr/local/bin/proxy RUN setcap 'cap_net_bind_service=+ep' /usr/local/bin/proxy USER stalwart-proxy WORKDIR /etc/proxy VOLUME ["/etc/proxy"] EXPOSE 24 25 110 143 465 587 993 995 4190 443 9443 ENV PROXY_HEALTHCHECK_URL=https://127.0.0.1:9443/healthz HEALTHCHECK --interval=30s --timeout=5s --start-period=30s --retries=3 \ CMD curl -fsSk "$PROXY_HEALTHCHECK_URL" || exit 1 ENTRYPOINT ["/usr/local/bin/proxy"] CMD ["/etc/proxy/config.toml"] # ***************** # Runtime image for musl targets # ***************** FROM --platform=$TARGETPLATFORM alpine AS musl RUN apk add --update --no-cache ca-certificates curl tzdata libcap && \ rm -rf /var/cache/apk/* && \ addgroup -S -g 2000 stalwart-proxy && \ adduser -S -D -H -u 2000 -G stalwart-proxy -s /sbin/nologin stalwart-proxy && \ mkdir -p /etc/proxy && \ chown stalwart-proxy:stalwart-proxy /etc/proxy COPY --from=builder --chmod=0755 /app/artifact/proxy /usr/local/bin/proxy RUN setcap 'cap_net_bind_service=+ep' /usr/local/bin/proxy USER stalwart-proxy WORKDIR /etc/proxy VOLUME ["/etc/proxy"] EXPOSE 24 25 110 143 465 587 993 995 4190 443 9443 ENV PROXY_HEALTHCHECK_URL=https://127.0.0.1:9443/healthz HEALTHCHECK --interval=30s --timeout=5s --start-period=30s --retries=3 \ CMD curl -fsSk "$PROXY_HEALTHCHECK_URL" || exit 1 ENTRYPOINT ["/usr/local/bin/proxy"] CMD ["/etc/proxy/config.toml"]