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+1,17 @@ +FROM rust:1.94.1-bookworm AS build + +WORKDIR /src + +COPY ./src /src/src +COPY ./Cargo.toml /src/Cargo.toml +COPY ./Cargo.lock /src/Cargo.lock + +RUN cargo build + +FROM scratch + +COPY --from=build src/target/debug/http-tokio /server +COPY --from=build /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libc.so.6 +COPY --from=build /lib/x86_64-linux-gnu/libm.so.6 /lib/x86_64-linux-gnu/libm.so.6 +COPY --from=build /lib/x86_64-linux-gnu/libgcc_s.so.1 /lib/x86_64-linux-gnu/libgcc_s.so.1 +COPY --from=build /lib64/ld-linux-x86-64.so.2 /lib64/ld-linux-x86-64.so.2 diff --git a/examples/tokio1-rust1.94.1/Kraftfile b/examples/tokio1-rust1.94.1/Kraftfile new file mode 100644 index 00000000..3a79426e --- /dev/null +++ b/examples/tokio1-rust1.94.1/Kraftfile @@ -0,0 +1,9 @@ +spec: v0.6 + +name: tokio1-rust1.75 + +runtime: base:latest + +rootfs: ./Dockerfile + +cmd: ["/server"] diff --git a/examples/tokio1-rust1.94.1/README.md b/examples/tokio1-rust1.94.1/README.md new file mode 100644 index 00000000..5fd0ddb4 --- /dev/null +++ b/examples/tokio1-rust1.94.1/README.md @@ -0,0 +1,64 @@ +# Rust/Tokio Server + +This directory contains an [Tokio](https://tokio.rs/) server running on Unikraft. + +## Set Up + +To run this example, [install Unikraft's companion command-line toolchain `kraft`](https://unikraft.org/docs/cli), clone this repository and `cd` into this directory. + +## Run and Use + +Use `kraft` to run the image and start a Unikraft instance: + +```bash +kraft run --rm -p 8080:8080 --plat qemu --arch x86_64 -M 512M . +``` + +If the `--plat` argument is left out, it defaults to `qemu`. +If the `--arch` argument is left out, it defaults to your system's CPU architecture. + +Once executed, it will open port `8080` and wait for connections. +To test it, you can use `curl`: + +```bash +curl localhost:8080 +``` + +You should see a "Bye, World!" message. + +## Inspect and Close + +To list information about the Unikraft instance, use: + +```bash +kraft ps +``` + +```text +NAME KERNEL ARGS CREATED STATUS MEM PORTS PLAT +stoic_nyota oci://unikraft.org/base:latest /server 23 minutes ago running 488M 0.0.0.0:8080->8080/tcp qemu/x86_64 +``` + +The instance name is `stoic_nyota`. +To close the Unikraft instance, close the `kraft` process (e.g., via `Ctrl+c`) or run: + +```bash +kraft rm stoic_nyota +``` + +Note that depending on how you modify this example your instance **may** need more memory to run. +To do so, use the `kraft run`'s `-M` flag, for example: + +```bash +kraft run --rm -p 8080:8080 --plat qemu --arch x86_64 -M 1024M . +``` + +## `kraft` and `sudo` + +Mixing invocations of `kraft` and `sudo` can lead to unexpected behavior. +Read more about how to start `kraft` without `sudo` at [https://unikraft.org/sudoless](https://unikraft.org/sudoless). + +## Learn More + +- [How to run unikernels locally](https://unikraft.org/docs/cli/running) +- [Building `Dockerfile` Images with `BuildKit`](https://unikraft.org/guides/building-dockerfile-images-with-buildkit) diff --git a/examples/tokio1-rust1.94.1/src/main.rs b/examples/tokio1-rust1.94.1/src/main.rs new file mode 100644 index 00000000..6a8f492b --- /dev/null +++ b/examples/tokio1-rust1.94.1/src/main.rs @@ -0,0 +1,27 @@ +use std::net::SocketAddr; +use tokio::net::TcpListener; +use tokio::io::{AsyncReadExt, AsyncWriteExt}; + +#[tokio::main] +async fn main() -> Result<(), Box> { + let addr = SocketAddr::from(([0, 0, 0, 0], 8080)); + let listener = TcpListener::bind(&addr).await?; + + println!("Listening on: http://{}", addr); + + loop { + let (mut stream, _) = listener.accept().await?; + + tokio::spawn(async move { + loop { + let mut buffer = [0; 1024]; + let _ = stream.read(&mut buffer).await; + + let contents = "Bye, World!\r\n"; + let content_length = contents.len(); + let response = format!("HTTP/1.1 200 OK\r\nContent-Length: {content_length}\r\n\r\n{contents}"); + let _ = stream.write_all(response.as_bytes()).await; + } + }); + } +}