FROM tetafro/golang-gcc AS builder
RUN apk add -U --no-cache git
RUN git clone -b "v2.20.0" --depth=1 https://github.com/drone/drone.git
RUN cd drone && go build -trimpath -ldflags='-w -s' -tags nolimit -o /usr/local/bin/drone-server ./cmd/drone-server

FROM drone/drone
COPY --from=builder /usr/local/bin/drone-server /bin/