Disallow localhost in deployment (#1064)

* disallow localhost in deployment

* tests

* fmt

* integration tests do not have a flag to check

* fmt

tests/multinode.rs

@@ -120,6 +120,7 @@ fn make_tiny_test_entries(start_hash: Hash, num: usize) -> Vec<Entry> {
 
 #[test]
 fn test_multi_node_ledger_window() -> result::Result<()> {
+    assert!(cfg!(feature = "test"));
     logger::setup();
 
     let leader_keypair = Keypair::new();
@@ -518,6 +519,7 @@ fn test_leader_restart_validator_start_from_old_ledger() -> result::Result<()> {
 #[ignore]
 fn test_multi_node_dynamic_network() {
     logger::setup();
+    assert!(cfg!(feature = "test"));
     let key = "SOLANA_DYNAMIC_NODES";
     let num_nodes: usize = match env::var(key) {
         Ok(val) => val