Function sanitize_image_identity

crates/openshell-driver-vm/src/driver.rs:4390–4401

(image_identity: &str)

}

fn sanitize_image_identity(image_identity: &str) -> String {
    image_identity
        .chars()
        .map(|ch| {
            if ch.is_ascii_alphanumeric() || ch == '-' || ch == '_' || ch == '.' {
                ch
            } else {
                '-'
            }
        })
        .collect()
}

fn unique_image_cache_suffix() -> String {
    let counter = IMAGE_CACHE_BUILD_COUNTER.fetch_add(1, Ordering::Relaxed);