Updated Dockerfile to resolve cache issues

Dockerfile

@@ -1,31 +1,38 @@
-# Use Python 3.13 slim as the base image
-FROM python:3.13-slim
-
-# Install git and other necessary packages
-RUN apt-get update && apt-get install -y \
-    git \
-    && rm -rf /var/lib/apt/lists/*
-
-# Expose the secret GROQ_API_KEY at buildtime and use its value as git remote URL
-RUN --mount=type=secret,id=GROQ_API_KEY,mode=0444,required=true \
- git init && \
- git remote add origin $(cat /run/secrets/GROQ_API_KEY)
-
-# Set the working directory
-WORKDIR /app
-
-# Copy app folder
-COPY app/ .
-
-# Copy requirements and install
-COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
-
-# Download the BGE embedding model
-RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('BAAI/bge-small-en-v1.5')"
-
-# Expose Gradio's default port
-EXPOSE 7860
-
-# Run the app
+# Use Python 3.13 slim as the base image
+FROM python:3.13-slim
+
+# Install git and other necessary packages
+RUN apt-get update && apt-get install -y \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+# Expose the secret GROQ_API_KEY at buildtime and use its value as git remote URL
+RUN --mount=type=secret,id=GROQ_API_KEY,mode=0444,required=true \
+ git init && \
+ git remote add origin $(cat /run/secrets/GROQ_API_KEY)
+
+# Set the working directory
+WORKDIR /app
+
+# Create cache directory with proper permissions
+RUN mkdir -p /.cache && chmod 777 /.cache
+
+# Set environment variable for transformers cache
+ENV TRANSFORMERS_CACHE=/.cache/transformers
+ENV HF_HOME=/.cache/huggingface
+
+# Copy requirements and install
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Download the BGE embedding model
+RUN python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('BAAI/bge-small-en-v1.5')"
+
+# Copy app folder
+COPY app/ .
+
+# Expose Gradio's default port
+EXPOSE 7860
+
+# Run the app
 CMD ["python", "app.py"]