Deploy Axum with LaunchFlow

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cargo new launchflow-axum
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cd launchflow-axum
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cargo add axum
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cargo add tokio -F full
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use axum::{routing::get, Router};
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#[tokio::main]
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async fn main() {
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    let lf_env = std::env::var("LAUNCHFLOW_ENVIRONMENT").expect("LaunchFlow environment not set");
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    let port = std::env::var("PORT").unwrap_or("3000".to_string());
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    let host = std::env::var("HOST").unwrap_or("0.0.0.0".to_string());
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    let address = format!("{host}:{port}");
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    let greeting = format!("Hello from {lf_env}!");
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    let app = Router::new().route("/", get(|| async { greeting }));
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    let listener = tokio::net::TcpListener::bind(address).await.unwrap();
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    axum::serve(listener, app).await.unwrap();
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}
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FROM public.ecr.aws/docker/library/rust:1.71 as builder
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WORKDIR /app
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COPY . .
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RUN cargo build --release --bin launchflow-axum
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FROM public.ecr.aws/docker/library/debian:bullseye AS runtime
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WORKDIR /app
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COPY --from=builder /app/target/release/launchflow-axum /usr/local/bin
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ENV HOST=0.0.0.0
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ENV PORT=80
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ENTRYPOINT ["/usr/local/bin/launchflow-axum"]
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