Update Dockerfile

Dockerfile

@@ -9,8 +9,9 @@ COPY requirements.txt .
 # Install dependencies from requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Create the writable data directory for database and blacklist
+# Create the writable data directory and set permissions
 RUN mkdir -p /data
+RUN chmod -R 777 /data
 
 # Copy all the other files into the container
 COPY . .