FROM golang:alpine as build
WORKDIR /app
ARG VERSION=0.3.0

RUN wget https://git.xenrox.net/~xenrox/ntfy-alertmanager/refs/download/v${VERSION}/ntfy-alertmanager-${VERSION}.tar.gz -O latest.tar.gz && \
    tar -zxf latest.tar.gz
RUN cd ntfy-alertmanager-${VERSION} && \
    go build -ldflags="-X main.version=v${VERSION}" -o /app/ntfy-alertmanager


FROM alpine:latest
WORKDIR /

COPY --from=build /app/ntfy-alertmanager /ntfy-alertmanager

ENTRYPOINT [ "./ntfy-alertmanager" ]