cellos-supervisor 0.5.1

CellOS execution-cell runner — boots cells in Firecracker microVMs or gVisor, enforces narrow typed authority, emits signed CloudEvents.
Documentation 
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//! End-to-end supervisor with `spec.run` (Unix: `true` binary).

#[cfg(unix)]
mod unix {
    use std::fs::File;
    use std::io::Write;
    use std::path::{Path, PathBuf};
    use std::process::Command;

    fn supervisor_exe() -> PathBuf {
        if let Some(p) = std::env::var_os("CARGO_BIN_EXE_cellos_supervisor") {
            return PathBuf::from(p);
        }
        let root = Path::new(env!("CARGO_MANIFEST_DIR"))
            .parent()
            .and_then(|p| p.parent())
            .expect("cellos-supervisor crate under workspace root");
        let profile = std::env::var("PROFILE").unwrap_or_else(|_| "debug".into());
        root.join("target").join(profile).join("cellos-supervisor")
    }

    #[test]
    fn supervisor_runs_true_exits_zero() {
        let dir = tempfile::tempdir().expect("tempdir");
        let spec_path = dir.path().join("spec.json");
        let json = r#"{"apiVersion":"cellos.io/v1","kind":"ExecutionCell","spec":{"id":"t-run","authority":{"secretRefs":[]},"lifetime":{"ttlSeconds":60},"run":{
"secretDelivery": "env","argv":["true"]}}}"#;
        let mut f = File::create(&spec_path).expect("create spec");
        f.write_all(json.as_bytes()).expect("write spec");
        drop(f);

        let exe = supervisor_exe();
        assert!(
            exe.is_file(),
            "supervisor binary missing at {} — run `cargo build -p cellos-supervisor`",
            exe.display()
        );
        let status = Command::new(exe)
            .env("CELLOS_DEPLOYMENT_PROFILE", "portable")
            .env("CELL_OS_USE_NOOP_SINK", "1")
            .env("CELLOS_CELL_BACKEND", "stub")
            .current_dir(env!("CARGO_MANIFEST_DIR"))
            .arg(&spec_path)
            .status()
            .expect("spawn cellos-supervisor");

        assert!(status.success(), "supervisor failed: {status:?}");
    }
}