Update Dockerfile with runtime dependencies, copy only necessary files

Dockerfile

@@ -1,7 +1,9 @@
-FROM python:latest
+FROM python:3.11-slim
 
-RUN apt-get update && apt-get install -y libgl1-mesa-glx ghostscript && apt-get clean && rm -rf /var/lib/apt/lists
-COPY . .
+# Get runtime dependencies
+# glx for OpenCV, ghostscript for datasheet PDF rendering, zbar for barcode scanning, git for cloning repos
+RUN apt-get update && apt-get install -y libgl1-mesa-glx ghostscript libzbar0 git && apt-get clean && rm -rf /var/lib/apt/lists
+COPY *.py *.yml *.sh *.txt *.html static templates ./
 #COPY config-server.yml config.yml
 RUN pip3 install -r requirements.txt