FROM golang:1.26-alpine AS builder
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY . .
ARG VERSION=dev
RUN CGO_ENABLED=0 GOOS=linux go build \
    -ldflags="-s -w" \
    -o spa-server \
    ./cmd/spa-server

FROM alpine:3.21
RUN apk add --no-cache ca-certificates tzdata
WORKDIR /app
COPY --from=builder /app/spa-server .
# Mount your SPA dist/ here, or COPY it in a downstream Dockerfile.
VOLUME ["/srv/www"]
EXPOSE 8080
ENTRYPOINT ["/app/spa-server"]
