Document instructions for running Enarx on server3

[Yaxuan-w]

This issue documents the current working setup for building and running Enarx on server3.

Adjust rust toolchain

# Under /home/<usr>
rustup install nightly-2024-11-01
rustup override set nightly-2024-11-01

Install required targets

rustup target add wasm32-wasi x86_64-unknown-linux-musl x86_64-unknown-none --toolchain nightly-2024-11-01

Build and install Enarx

cd enarx/  # Navigate to the Enarx project directory
cargo install --locked --bin enarx --path ./

# Add Enarx binary to PATH
export PATH="$HOME/.cargo/bin:$PATH"

# Confirm installation
which enarx

Create test case

cd ../
cargo init --bin hello-world
cd hello-world/
echo 'fn main() { println!("Hello, Enarx!"); }' > src/main.rs
# Compile to regular wasm binary
cargo build --release --target=wasm32-wasi

Run

enarx run <absolute_path_of_executables>

Example:

enarx run /home/alice/hello-world/target/wasm32-wasi/release/hello-world.wasm