FROM golang:1.22-alpine AS backend-build

WORKDIR /build

COPY *.go .
COPY go.mod .

RUN go build -tags timetzdata -ldflags "-s -w" -o /tmp/rss

FROM alpine:3.20 AS base

WORKDIR /app

COPY --from=backend-build /tmp/rss /app/rss
COPY go.mod .
COPY templates templates
COPY static static

RUN chmod +x /app/rss

CMD ["/app/rss"]