feat: adding host param and docker example for deployment

docker_example/Dockerfile

@@ -0,0 +1,8 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+COPY ./ /app
+RUN pip install langflow
+
+EXPOSE 5003
+CMD ["langflow", "--host", "0.0.0.0"]

docker_example/docker-compose.yml

@@ -0,0 +1,11 @@
+version: '3'
+
+services:
+  langflow:
+    build:
+      context: ./
+      dockerfile: Dockerfile
+    ports:
+      - "5003:5003"
+    command: langflow --host 0.0.0.0
+    platform: linux/amd64

langflow/backend/langflow_backend/__main__.py

@@ -15,6 +15,7 @@ def get_number_of_workers(workers=None):
 
 
 def serve(
+    host: str = "127.0.0.1",
     workers: int = 1,
     timeout: int = 60,
 ):
@@ -27,8 +28,6 @@ def serve(
         StaticFiles(directory=static_files_dir, html=True),
         name="static",
     )
-
-    host = "127.0.0.1"
     port = 5003
     options = {
         "bind": f"{host}:{port}",