fix(server): Ensure nameserver is started before other processes (#7788)

ensure nameserver is started before other processes

rnd/autogpt_server/autogpt_server/app.py

@@ -1,5 +1,8 @@
 from multiprocessing import freeze_support, set_start_method
 
+import Pyro5.api as pyro
+from tenacity import retry, stop_after_attempt, wait_exponential
+
 from autogpt_server.executor import ExecutionManager, ExecutionScheduler
 from autogpt_server.server import AgentServer
 from autogpt_server.util.process import AppProcess
@@ -13,13 +16,28 @@ def get_config_and_secrets():
     return settings
 
 
+@retry(stop=stop_after_attempt(30), wait=wait_exponential(multiplier=1, min=1, max=30))
+def wait_for_nameserver():
+    pyro.locate_ns(host="localhost", port=9090)
+    print("NameServer is ready")
+
+
 def run_processes(processes: list[AppProcess], **kwargs):
     """
     Execute all processes in the app. The last process is run in the foreground.
     """
     try:
-        for process in processes[:-1]:
+        # Start NameServer first
+        processes[0].start(background=True, **kwargs)
+
+        # Wait for NameServer to be ready
+        wait_for_nameserver()
+
+        # Start other processes
+        for process in processes[1:-1]:
             process.start(background=True, **kwargs)
+
+        # Run the last process in the foreground
         processes[-1].start(background=False, **kwargs)
     except Exception as e:
         for process in processes: