chore: add dockerfile

Dockerfile

@@ -0,0 +1,26 @@
+FROM rust:alpine3.18 AS builder
+
+RUN USER=root cargo new --bin remini
+WORKDIR /remini
+
+ENV     RUSTFLAGS="-C target-feature=-crt-static"
+RUN     apk add -q --update-cache --no-cache build-base openssl-dev musl pkgconfig protobuf-dev
+
+COPY . .
+
+RUN cargo build --release
+
+FROM alpine:3.18 AS runtime
+
+RUN apk add --no-cache libgcc
+
+RUN addgroup -S appgroup && adduser -S rust -G appgroup
+USER rust
+
+# Copy binary.
+COPY --from=builder /remini/target/release/remini /bin/remini
+# Copy ML models.
+COPY --from=builder /remini/src/corpus/model.onnx /src/corpus/model.onnx
+
+EXPOSE 50051/tcp
+CMD     ["./bin/remini"]