Add Dockerfile to create images

.dockerignore

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+Dockerfile
+target/*

Dockerfile

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+FROM rust:1.74-bookworm
+
+COPY . /opt/app
+
+WORKDIR /opt/app
+
+RUN apt update && apt install -y cmake
+
+RUN cargo build --release
+
+ENTRYPOINT ["/opt/app/target/release/disconic"]
+
+CMD ["--help"]