Fix: Create and set permissions for converted_audio directory in Dockerfile

Dockerfile

@@ -1,32 +1,40 @@
-# Use an official Python runtime as a parent image
+# Use an official Python runtime as a parent image, optimized for CPU
 FROM python:3.11-slim-buster
 
-# Set the working directory in the container
+# Set the working directory inside the container
 WORKDIR /app
 
-# Install ffmpeg which is required by pydub
+# Install ffmpeg, which is required by pydub.
+# We also clean up the apt cache to reduce image size.
 RUN apt-get update && \
     apt-get install -y ffmpeg && \
     rm -rf /var/lib/apt/lists/*
 
-# Copy the requirements file into the working directory
+# Copy the requirements file into the working directory first
+# This allows Docker to cache this layer if requirements.txt doesn't change
 COPY requirements.txt .
 
-# Install any needed packages specified in requirements.txt
+# Install all Python dependencies from requirements.txt
+# --no-cache-dir reduces the size of the installed packages
 RUN pip install --no-cache-dir -r requirements.txt
 
-# --- ADDED/UPDATED LINES TO CREATE AND PERMIT BOTH DIRECTORIES ---
-# Create the uploads directory and set permissions
+# --- Create and set appropriate permissions for all directories used by the application ---
+# Your main.py creates these directories at startup, so they must exist and be writable
+# by the user running the app inside the container (typically root by default in slim-buster).
+# 'chmod 777' grants full read/write/execute permissions to all, ensuring no permission issues.
 RUN mkdir -p uploads && chmod 777 uploads
-# Create the converted_audio_temp directory and set permissions
 RUN mkdir -p converted_audio_temp && chmod 777 converted_audio_temp
-# ------------------------------------------------------------------
+RUN mkdir -p transcriptions && chmod 777 transcriptions
+# -----------------------------------------------------------------------------------------
 
-# Copy the rest of the application code into the working directory
+# Copy the rest of your application code into the working directory
+# Ensure your main.py, and any other Python files/folders, are in the same directory
+# as your Dockerfile when you build.
 COPY . .
 
-# Expose the port that FastAPI will run on
+# Expose the port that your FastAPI application will run on
 EXPOSE 8000
 
-# Command to run the application
+# Command to run your FastAPI application using Uvicorn
+# The application will listen on all network interfaces (0.0.0.0) on port 8000
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]