Scope Shuttle remotes to laptop daemon

Author: cailmdaley

config/dev.exs

@@ -1,5 +1,31 @@
 import Config
 
+hostname =
+  case :inet.gethostname() do
+    {:ok, name} -> to_string(name)
+    _ -> ""
+  end
+
+remotes =
+  if hostname in ["dapmcw68"] do
+    [
+      %{
+        name: "candide",
+        url: "http://127.0.0.1:4001",
+        poll_interval_ms: 5000,
+        request_timeout_ms: 8000
+      },
+      %{
+        name: "cineca",
+        url: "http://127.0.0.1:4002",
+        poll_interval_ms: 5000,
+        request_timeout_ms: 8000
+      }
+    ]
+  else
+    []
+  end
+
 config :shuttle, ShuttleWeb.Endpoint,
   http: [ip: {127, 0, 0, 1}, port: 4000],
   check_origin: false,
@@ -10,9 +36,7 @@ config :shuttle, ShuttleWeb.Endpoint,
   secret_key_base: "shuttlelocaldevkeybaseshuttlelocaldevkeybaseshuttlelocaldevkeybase"
 
 # Remote Shuttle daemons reachable over local SSH LocalForwards.
-# See ~/.ssh/config — candide -> :4001, cineca -> :4002
-config :shuttle,
-  remotes: [
-    %{name: "candide", url: "http://127.0.0.1:4001", poll_interval_ms: 5000, request_timeout_ms: 8000},
-    %{name: "cineca",  url: "http://127.0.0.1:4002", poll_interval_ms: 5000, request_timeout_ms: 8000}
-  ]
+# See ~/.ssh/config — candide -> :4001, cineca -> :4002. Only the
+# laptop daemon aggregates remotes; remote daemons should not try to
+# recover themselves through their own LocalForward map.
+config :shuttle, remotes: remotes