update container network_mode

Author: ChingHua

README.md

@@ -75,6 +75,8 @@ the docker compose will start a jupyter lab service without token
 
 Browse to <http://localhost:8888/lab> to continue.
 
+for the convenient the container using network_mode: host (for ray dashboard / jupyter)
+
 ## Syllabus
 
 ### Overview

docker-compose.yml

@@ -4,6 +4,5 @@ services:
     build: .
     volumes:
       - .:/ray_tutorial
-    ports:
-        - 8888:8888
-    command: jupyter lab --ip=0.0.0.0 --allow-root --NotebookApp.token=''
+    command: jupyter lab --ip=0.0.0.0 --allow-root --NotebookApp.token=''
+    network_mode: "host"