# Builder image
FROM docker.io/golang:1.19.3-bullseye AS build
ARG VERSION=v0.20.0
ENV GOPATH /go

RUN apt-get install -y git && \
    git clone https://github.com/juanfont/headscale -b $VERSION /go/src/headscale

WORKDIR /go/src/headscale

RUN go mod download

RUN CGO_ENABLED=0 GOOS=linux go install -tags ts2019 -ldflags="-s -w -X github.com/juanfont/headscale/cmd/headscale/cli.Version=$VERSION" -a ./cmd/headscale
RUN strip /go/bin/headscale
RUN test -e /go/bin/headscale

# Production image
# Note that we do not use "distroless" because we actually want to have a shell in the image
# to run app.sh (in order to perform custom initialization)
FROM docker.io/golang:1.19.3-bullseye

COPY --from=build /go/bin/headscale /bin/headscale
ENV TZ UTC

ADD app.sh /

RUN chmod +x /app.sh

EXPOSE 8080/tcp
# State path
# Note that configuration should be mounted or added in /etc/headscale
VOLUME /var/lib/headscale
CMD ["/app.sh"]