Initial commit

.gitignore

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+.env
+

docker-compose.yml

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+services:
+  jelly_proxy:
+    image: python:3.11
+    restart: unless-stopped
+    working_dir: /app
+    environment:
+    - JELLY_NAME=${JELLY_NAME:?Missing Name}
+    - JELLY_ID=${JELLY_ID:?Missing ID}
+    - JELLY_ADDR=${JELLY_ADDR:?Missing Address}
+    volumes:
+    - ./jelly.py:/app/jelly.py
+    ports:
+    - 7359:7359/udp
+    command: python -u jelly.py
+

jelly.py

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+import signal
+import socket
+import sys
+import os
+
+def graceful_exit(signum, frame):
+    print(f"Exit requested by {signum}")
+    sys.exit(0)
+
+def get_env(name):
+    value = os.environ.get(name)
+    if value is None:
+        print(f"Missing env variable '{name}'")
+        print("Exiting")
+        sys.exit(1)
+
+    return value
+
+def main():
+    jelly_id = get_env('JELLY_ID')
+    jelly_name = get_env('JELLY_NAME')
+    jelly_addr = get_env('JELLY_ADDR')
+
+    payload = ('{"Address":"%(addr)s","Id":"%(id)s","Name":"%(name)s","EndpointAddress":null}' % {
+        'addr': jelly_addr,
+        'id': jelly_id,
+        'name': jelly_name,
+    }).encode()
+
+    print(f"Listening for JellyFin client discovery broadcasts")
+    print('Address: "%(addr)s", Id: "%(id)s", Name: "%(name)s"' % {
+        'addr': jelly_addr,
+        'id': jelly_id,
+        'name': jelly_name,
+    })
+
+    signal.signal(signal.SIGINT, graceful_exit)
+    signal.signal(signal.SIGTERM, graceful_exit)
+
+    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    s.bind(('', 7359))
+
+    while True:
+        msg, addr = s.recvfrom(1024)
+
+        if msg == b'Who is JellyfinServer?':
+            print(f"Broadcast {addr}: {msg}")
+            s.sendto(payload, addr)
+        else:
+            print(f"Unknown broadcast {addr}: {msg}")
+
+if __name__ == "__main__":
+    main()
+

sample.env

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+JELLY_NAME="server name"
+JELLY_ID="server hash"
+JELLY_ADDR="server address"