Split backend properly

backend/Dockerfile.analytics

@@ -0,0 +1,24 @@
+# syntax=docker/dockerfile:1.7
+
+FROM rockylinux/rockylinux:10 AS build
+
+RUN dnf install -y golang && dnf clean all
+
+WORKDIR /src
+COPY analytics/go.mod analytics/go.sum ./
+RUN go mod download
+COPY analytics/ .
+RUN CGO_ENABLED=0 GOOS=linux go build -o /analytics-server ./cmd/server
+
+FROM rockylinux/rockylinux:10 AS final
+
+RUN groupadd --gid 10001 appgroup && \
+    useradd --uid 10001 --gid 10001 --no-create-home --shell /sbin/nologin appuser
+
+COPY --from=build /analytics-server /usr/local/bin/analytics-server
+
+USER appuser
+
+EXPOSE 8080
+
+ENTRYPOINT ["/usr/local/bin/analytics-server"]