Create docker image for release

rust/Dockerfile

@@ -0,0 +1,6 @@
+FROM debian:bullseye-slim
+
+COPY sea_battle_backend /usr/local/bin/sea_battle_backend
+
+ENTRYPOINT /usr/local/bin/sea_battle_backend
+

rust/build_docker_image.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+cargo build --release --bins
+
+TEMP_DIR=$(mktemp -d)
+cp target/release/sea_battle_backend "$TEMP_DIR"
+
+docker build -f Dockerfile "$TEMP_DIR" -t pierre42100/seabattleapi
+
+rm -r $TEMP_DIR
+