Dockerfile

# ─── Stage 0: Build frontend ────────────────────────────────
FROM node:22-alpine AS frontend-builder

WORKDIR /src

COPY frontend/package.json frontend/package-lock.json* ./
RUN npm ci 2>/dev/null || npm install

COPY frontend/ .
ARG VITE_API_BASE
ENV VITE_API_BASE=${VITE_API_BASE}
RUN npm run build

# ─── Stage 1: Build Go binary ───────────────────────────────
FROM --platform=$BUILDPLATFORM golang:1.26-alpine AS go-builder

ARG TARGETOS TARGETARCH

WORKDIR /src

COPY go.mod go.sum ./
RUN go mod download

COPY . .

RUN GOOS=$TARGETOS GOARCH=$TARGETARCH \
    go build -ldflags="-s -w" -o /build/kitchen

# ─── Stage 2: Go binary runner ──────────────────────────────
FROM alpine:3.21 AS kitchen

RUN apk --no-cache add ca-certificates tini

COPY --from=go-builder /build/kitchen /usr/bin/kitchen
COPY --from=frontend-builder /src/dist /assets/dist

EXPOSE 3080

ENTRYPOINT ["tini", "--"]
CMD ["/usr/bin/kitchen"]