run demos without docker, keep docker optional via --with-ui

demos/getting_started/llm_gateway/README.md

@@ -7,7 +7,14 @@ This demo shows how you can use Plano gateway to manage keys and route to upstre
    ```sh
    sh run_demo.sh
    ```
-1. Navigate to http://localhost:3001/
+1. Test with curl (see example below)
+
+To also start the AnythingLLM chat UI and Jaeger tracing, pass `--with-ui`:
+```sh
+sh run_demo.sh --with-ui
+```
+
+Then navigate to http://localhost:3001/ for AnythingLLM.
 
 Following screen shows an example of interaction with Plano gateway showing dynamic routing. You can select between different LLMs using "override model" option in the chat UI.
 
@@ -47,7 +54,7 @@ $ curl --header 'Content-Type: application/json' \
 ```
 
 # Observability
-For tracing you can head over to http://localhost:16686/ to view recent traces.
+For tracing, start with `--with-ui` and head over to http://localhost:16686/ to view recent traces.
 
 Following is a screenshot of tracing UI showing call received by Plano gateway and making upstream call to LLM,
 

demos/getting_started/llm_gateway/run_demo.sh

@@ -22,18 +22,19 @@ start_demo() {
   echo "Starting Plano with config.yaml..."
   planoai up config.yaml
 
-  # Step 4: Start LLM Routing
-  echo "Starting LLM Routing using Docker Compose..."
-  docker compose up -d  # Run in detached mode
+  # Step 4: Optionally start UI services (AnythingLLM, Jaeger)
+  if [ "$1" == "--with-ui" ]; then
+    echo "Starting UI services (AnythingLLM, Jaeger)..."
+    docker compose up -d
+  fi
 }
 
 # Function to stop the demo
 stop_demo() {
-  # Step 1: Stop Docker Compose services
-  echo "Stopping LLM Routing using Docker Compose..."
-  docker compose down
+  # Stop Docker Compose services if running
+  docker compose down 2>/dev/null || true
 
-  # Step 2: Stop Plano
+  # Stop Plano
   echo "Stopping Plano..."
   planoai down
 }
@@ -42,6 +43,5 @@ stop_demo() {
 if [ "$1" == "down" ]; then
   stop_demo
 else
-  # Default action is to bring the demo up
-  start_demo
+  start_demo "$1"
 fi