chore: optimize dockerfile order for caching

.dockerignore

@@ -1,4 +1,7 @@
+.github
 .DS_Store
+docs
+kubernetes
 node_modules
 /.svelte-kit
 /package

Dockerfile

@@ -26,26 +26,14 @@ ENV OPENAI_API_KEY ""
 
 ENV WEBUI_JWT_SECRET_KEY "SECRET_KEY"
 
-WORKDIR /app
-
-# copy embedding weight from build
-RUN mkdir -p /root/.cache/chroma/onnx_models/all-MiniLM-L6-v2
-COPY --from=build /app/onnx.tar.gz /root/.cache/chroma/onnx_models/all-MiniLM-L6-v2
-
-RUN cd /root/.cache/chroma/onnx_models/all-MiniLM-L6-v2 &&\
-    tar -xzf onnx.tar.gz
-
-# copy built frontend files
-COPY --from=build /app/build /app/build
-
 WORKDIR /app/backend
 
+# install python dependencies
 COPY ./backend/requirements.txt ./requirements.txt
 
 RUN pip3 install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cpu --no-cache-dir
 RUN pip3 install -r requirements.txt --no-cache-dir
 
-
 # Install pandoc
 # RUN python -c "import pypandoc; pypandoc.download_pandoc()"
 RUN apt-get update \
@@ -54,6 +42,17 @@ RUN apt-get update \
 
 # RUN python -c "from sentence_transformers import SentenceTransformer; model = SentenceTransformer('all-MiniLM-L6-v2')"
 
+# copy embedding weight from build
+RUN mkdir -p /root/.cache/chroma/onnx_models/all-MiniLM-L6-v2
+COPY --from=build /app/onnx.tar.gz /root/.cache/chroma/onnx_models/all-MiniLM-L6-v2
+
+RUN cd /root/.cache/chroma/onnx_models/all-MiniLM-L6-v2 &&\
+    tar -xzf onnx.tar.gz
+
+# copy built frontend files
+COPY --from=build /app/build /app/build
+
+# copy backend files
 COPY ./backend .
 
 CMD [ "sh", "start.sh"]