Add dockerfile to run on railway

Author: paulocsanz

Dockerfile

@@ -0,0 +1,21 @@
+FROM rust:1.71 as builder
+ENV SERVER_ADDRESS=0.0.0.0
+ENV SERVER_PORT=3000
+WORKDIR /app
+COPY . .
+
+RUN cargo build --release --target=x86_64-unknown-linux-gnu
+RUN ls
+
+FROM ubuntu:latest
+RUN apt-get update && apt-get install -y libssl-dev pkg-config
+RUN apt-get install -y ca-certificates
+
+WORKDIR /app
+COPY --from=builder /app/target/release/server /usr/local/bin
+ENV SERVER_ADDRESS=0.0.0.0
+ENV SERVER_PORT=3000
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+RUN source $HOME/.cargo/env
+ENTRYPOINT ["/usr/local/bin/server"]
+