feat(container) production build

container/release/backend.containerfile

@@ -0,0 +1,10 @@
+FROM rust:latest AS builder
+WORKDIR /app
+COPY . .
+RUN ["cargo", "build", "-r"]
+
+FROM gcr.io/distroless/cc AS production
+ARG ARCH
+COPY --from=builder /app/target/release/api_server ./api_server
+COPY --from=builder /usr/lib/${ARCH}-linux-gnu/libz.so.1 /usr/lib/${ARCH}-linux-gnu/
+ENTRYPOINT ["./api_server"]