ARG GOVERSION=latest # # Maybe build Syncthing. This is a bit ugly as we can't make an entire # section of the Dockerfile conditional, so we end up always pulling the # golang image as builder. Then we check if the executable we need already # exists (pre-built) otherwise we build it. # FROM golang:$GOVERSION AS builder ARG BUILD_USER ARG BUILD_HOST ARG TARGETARCH WORKDIR /src COPY . . ENV CGO_ENABLED=0 RUN if [ ! -f syncthing-linux-$TARGETARCH ] ; then \ go run build.go -no-upgrade build syncthing ; \ mv syncthing syncthing-linux-$TARGETARCH ; \ fi # # The rest of the Dockerfile uses the binary from the builder, prebuilt or # not. # FROM alpine ARG TARGETARCH EXPOSE 8384 22000/tcp 22000/udp 21027/udp VOLUME ["/var/syncthing"] RUN apk add --no-cache ca-certificates curl libcap su-exec tzdata COPY --from=builder /src/syncthing-linux-$TARGETARCH /bin/syncthing COPY --from=builder /src/script/docker-entrypoint.sh /bin/entrypoint.sh ENV PUID=1000 PGID=1000 HOME=/var/syncthing HEALTHCHECK --interval=1m --timeout=10s \ CMD curl -fkLsS -m 2 127.0.0.1:8384/rest/noauth/health | grep -o --color=never OK || exit 1 ENV STGUIADDRESS=0.0.0.0:8384 ENV STHOMEDIR=/var/syncthing/config RUN chmod 755 /bin/entrypoint.sh ENTRYPOINT ["/bin/entrypoint.sh", "/bin/syncthing"]