FROM golang:alpine as gobuilder
MAINTAINER alphard <alphard@aehoo.net>

RUN wget -O algernon.tar.gz https://github.com/xyproto/algernon/archive/refs/tags/v1.15.4.tar.gz &&\
    mkdir -p /algernon &&\
    tar --strip-components=1 -C /algernon -xvf algernon.tar.gz
WORKDIR /algernon

# Build Algernon
RUN GOOS=linux \
    GOARCH=amd64 \
    CGO_ENABLED=0 \
    go build \
      -mod=vendor \
      -a \
      -trimpath \
      -installsuffix cgo \
      -ldflags="-w -s" \
      -o /bin/algernon

RUN apk add upx && upx /bin/algernon

FROM scratch
COPY --from=gobuilder /bin/algernon /bin/algernon

COPY --from=gobuilder /tmp /tmp
VOLUME /srv/algernon
WORKDIR /srv/algernon

EXPOSE 80
ENTRYPOINT ["/bin/algernon", "--domain", "--server", "--nocache", "--prod", "/srv/algernon"]