making restart upon signal TERM + vars()

compose.yml

@@ -10,11 +10,14 @@ services:
   # the websocket-server
   websocket-server:
     stop_grace_period: 1s
+    restart: always
     environment:
       PYTHONUNBUFFERED: true
     build: 'websocket-server'
     expose:
     - 1080
+    volumes:
+    - ./websocket-server/entrypoint.py:/mnt/entrypoint.py
   # the client
   client-test-websocket:
     stop_grace_period: 1s

websocket-server/entrypoint.py

@@ -1,22 +1,36 @@
 #!/usr/bin/env python
 
 import asyncio
-
+import signal
+import sys
+import json
 from websockets.asyncio.server import serve
 
+connected_clients = set()
+
+
+def sigterm_handler(_signo, _stack_frame):
+    # Raises SystemExit(0):
+    sys.exit(0)
+
+
 async def server(websocket):
-    msg = await websocket.recv()
-    print(f"IN : {msg}")
-
-    answer = f"echoing {msg}"
-
-    await websocket.send(answer)
-    print(f"OUT: {answer}")
+    print("the handler ist called",websocket.remote_address,"vars",json.dumps(websocket.__dict__,indent=4,default=lambda o: '<not serializable>'));
+#    while True:
+#        msg = await websocket.recv()
+#        print(f"IN : {msg}")
+#
+#        answer = f"echoing {msg}"
+#
+#        await websocket.send(answer)
+#        print(f"OUT: {answer}")
 
 async def main():
     async with serve(server, "0.0.0.0", 1080):
         await asyncio.get_running_loop().create_future()
 
 if __name__ == "__main__":
+    signal.signal(signal.SIGTERM, sigterm_handler)
+    print('AAAAANOWAAAsaa is this')
     asyncio.run(main())
 

websocket-server/entrypoint.sh

@@ -1,5 +1,22 @@
 #!/bin/sh
+set -x
+safeexec() {
+  CMD="$1"
+  shift
+  test -x "$CMD" && exec "$CMD" "$@"
+}
 
 test "" = "$*" || { exec "$@"; } 
-echo "running /entrypoint.py"
-exec /entrypoint.py
+safeexec /mnt/entrypoint.py || safeexec /entrypoint.py
+#
+#trap "true" USR2
+#while true
+#do
+#    echo "running /entrypoint.py"
+#    ( /mnt/entrypoint.py || /entrypoint.py ) &
+#    THEPID=$!
+#    wait 
+#    test "$?" -gt 128 && {
+#        kill "$THEPID"
+#    } || break
+#done