added comments

Dockerfile

 # syntax=docker/dockerfile:1
 # Initialize device type args
+# use buiild args in the docker build commmand with --build-arg="BUILDARG=true"
 ARG USE_CUDA=false
 ARG USE_MPS=false
 ARG INCLUDE_OLLAMA=false

backend/config.py

@@ -221,6 +221,8 @@ if OLLAMA_BASE_URL == "" and OLLAMA_API_BASE_URL != "":
 if ENV == "prod":
     if OLLAMA_BASE_URL == "/ollama":
         if INCLUDE_OLLAMA:
+            # If you use all in one Docker container (WEbUI + Ollama) 
+            # with the docker build arg INCLUDE_OLLAMA=true (--build-arg="INCLUDE_OLLAMA=true") this only works with http://localhost:11434
             OLLAMA_BASE_URL = "http://localhost:11434"
         else:    
             OLLAMA_BASE_URL = "http://host.docker.internal:11434"

backend/start.sh

 #!/usr/bin/env bash
 
+# Get the INCLUDE_OLLAMA_ENV environment variable whcih is set in the Dockerfile
+# This includes the ollama in the image
 INCLUDE_OLLAMA=${INCLUDE_OLLAMA_ENV:-false}
 
 SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )