Containerfile

FROM docker.io/alpine:latest AS base

FROM base AS builder

ARG BRANCH

RUN set -ex && \
	apk add --no-cache --upgrade \
		git \
		python3 \
		build-base \
		cmake \
		curl-dev \
		gettext-dev \
		openssl-dev \
		linux-headers \
		samurai

WORKDIR /usr/src
RUN git clone https://github.com/transmission/transmission transmission

WORKDIR /usr/src/transmission
RUN git checkout ${BRANCH} && git submodule update --init --recursive

RUN cmake \
			-S . \
			-B obj \
			-G Ninja \
			-D CMAKE_BUILD_TYPE=Release \
			-D ENABLE_CLI=OFF \
			-D ENABLE_DAEMON=ON \
			-D ENABLE_GTK=OFF \
			-D ENABLE_MAC=OFF \
			-D ENABLE_QT=OFF \
			-D ENABLE_TESTS=OFF \
			-D ENABLE_UTILS=OFF \
			-D ENABLE_UTP=ON \
			-D ENABLE_WERROR=OFF \
			-D ENABLE_DEPRECATED=OFF \
			-D ENABLE_NLS=ON \
			-D INSTALL_WEB=ON \
			-D REBUILD_WEB=OFF \
			-D INSTALL_DOC=OFF \
			-D INSTALL_LIB=OFF \
			-D RUN_CLANG_TIDY=OFF \
			-D WITH_INOTIFY=ON \
			-D WITH_CRYPTO="openssl" \
			-D WITH_SYSTEMD=OFF && \
    cmake --build obj --config Release; \
    cmake --build obj --config Release --target install/strip

FROM base AS runtime

RUN set -ex && \
    apk update && \
    apk add --no-cache --upgrade libcurl libintl libgcc libstdc++

COPY --from=builder /usr/local/bin /usr/local/bin
COPY --from=builder /usr/local/share /usr/local/share

EXPOSE 9091/tcp 51413/tcp 51413/udp
VOLUME /config /watch /download

ENTRYPOINT [ "transmission-daemon" ]
CMD [ "--config-dir", "/config", "--watch-dir", "/watch", "--download-dir", "/download", "--foreground" ]