FROM golang:1.25.1 AS builder ENV CGO_ENABLED=0 GOOS=linux GOARCH=amd64 WORKDIR /app COPY go.mod go.sum ./ RUN go mod download COPY . . RUN go build -ldflags="-s -w" -o /app/spotify-ws . RUN go build -ldflags="-s -w" -o /app/healthcheck ./healthcheck FROM gcr.io/distroless/static:nonroot WORKDIR /app COPY --from=builder --chown=nonroot:nonroot /app/spotify-ws . COPY --from=builder --chown=nonroot:nonroot /app/healthcheck . EXPOSE 3000 HEALTHCHECK --interval=30s --timeout=5s --start-period=5s CMD ["/app/healthcheck"] USER nonroot:nonroot CMD ["/app/spotify-ws"]