notify main dev process when server is ready (#96332)

* notify main dev process when server is ready * check for process.send existence
elastic · Apr 6, 2021 · 7f97f8b · 7f97f8b
1 parent 8227ece
commit 7f97f8b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/core/server/bootstrap.ts b/src/core/server/bootstrap.ts
@@ -83,6 +83,11 @@ export async function bootstrap({ configs, cliArgs, applyConfigOverrides }: Boot
   try {
     await root.setup();
     await root.start();
+
+    // notify parent process know when we are ready for dev mode.
+    if (process.send) {
+      process.send(['SERVER_LISTENING']);
+    }
   } catch (err) {
     await shutdown(err);
   }