chore: Dockerfileを追加

Dockerfile

@@ -0,0 +1,36 @@
+# syntax=docker/dockerfile:1.6
+FROM lukemathwalker/cargo-chef:latest-rust-1.77-slim AS chef
+WORKDIR /app
+
+FROM chef AS planner
+COPY --link . .
+RUN cargo chef prepare --recipe-path recipe.json
+
+FROM chef AS build-env
+COPY --from=planner --link /app/recipe.json recipe.json
+
+# Build dependencies - this is the caching Docker layer!
+RUN cargo chef cook --release --recipe-path recipe.json
+
+# Build application
+COPY --link . .
+RUN cargo build --release
+
+FROM ubuntu:22.04
+LABEL org.opencontainers.image.source=https://github.com/GiganticMinecraft/seichiassist-downloader
+RUN apt-get update -y && \
+    apt-get install -y git curl gnupg && \
+    git clone https://github.com/GiganticMinecraft/SeichiAssist.git
+
+# sbt 公式リポジトリを追加
+RUN echo "deb https://repo.scala-sbt.org/scalasbt/debian all main" | tee /etc/apt/sources.list.d/sbt.list && \
+    echo "deb https://repo.scala-sbt.org/scalasbt/debian /" | tee /etc/apt/sources.list.d/sbt_old.list && \
+    curl -sL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x2EE0EA64E40A89B84B2DF73499E82A75642AC823" | apt-key add
+
+# sbt をインストール
+RUN apt-get update && \
+    apt-get install -y sbt
+
+COPY --from=build-env --link /app/target/release/seichiassist-downloader /
+CMD ["./seichiassist-downloader"]
+