Update Dockerfile

Dockerfile

@@ -1,18 +1,24 @@
-# Read the doc: https://huggingface.co/docs/hub/spaces-sdks-docker# you will also find guides on how best to write your Dockerfile
-FROM python:3.10-slim
-
-# Set the working directory in the container
-WORKDIR /app
-
-# Copy the dependency file and install dependencies
-COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
-
-# Copy the rest of the application files (including vector_db)
-COPY . .
-
-# Grant execution permissions to the run script
-RUN chmod +x run.sh
-
-# This tells the container what command to run when it starts
+# Use an official Python runtime as a parent image
+FROM python:3.10-slim
+
+# --- START DNS FIX ---
+# This line ensures the container uses Google's public DNS (8.8.8.8) 
+# for reliable hostname resolution, which should prevent the [Errno -5] error.
+RUN echo "nameserver 8.8.8.8" > /etc/resolv.conf
+# --- END DNS FIX ---
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Copy the dependency file and install dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of the application files (including vector_db and telegram_bot.py)
+COPY . .
+
+# Grant execution permissions to the run script
+RUN chmod +x run.sh
+
+# This tells the container what command to run when it starts
 ENTRYPOINT ["./run.sh"]