cellos-supervisor 0.5.1

CellOS execution-cell runner — boots cells in Firecracker microVMs or gVisor, enforces narrow typed authority, emits signed CloudEvents.
Documentation
//! Fail-closed when `CELL_OS_REQUIRE_HTTP_EXPORT=1` and HTTP export URL is invalid.

#[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 exits_nonzero_when_http_export_required_but_base_url_invalid() {
        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-req-http","authority":{"secretRefs":[]},"lifetime":{"ttlSeconds":60}}}"#;
        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 {}",
            exe.display()
        );

        let status = Command::new(exe)
            .env("CELLOS_DEPLOYMENT_PROFILE", "portable")
            .env("CELL_OS_USE_NOOP_SINK", "1")
            .env(
                "CELLOS_EXPORT_HTTP_BASE_URL",
                "ftp://example.invalid/not-http-scheme",
            )
            .env("CELL_OS_REQUIRE_HTTP_EXPORT", "1")
            .env("CELLOS_CELL_BACKEND", "stub")
            .current_dir(env!("CARGO_MANIFEST_DIR"))
            .arg(&spec_path)
            .status()
            .expect("spawn cellos-supervisor");

        assert!(
            !status.success(),
            "expected failure when HTTP export required but base URL invalid, got {status:?}"
        );
    }
}