Add Dockerfile

Dockerfile

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+FROM ekidd/rust-musl-builder AS builder
+ADD . /home/rust/src
+RUN cargo build --release
+
+FROM archlinux/base
+RUN pacman -Sy --needed --noconfirm gptfdisk parted arch-install-scripts dosfstools coreutils util-linux cryptsetup
+COPY --from=builder /home/rust/src/target/x86_64-unknown-linux-musl/release/alma /usr/bin/alma
+
+CMD alma
+WORKDIR /work