Use requirements.txt file to install python dependencies in ML image

machine-learning/Dockerfile

@@ -4,10 +4,11 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=true
 
+COPY requirements.txt ./
+
 RUN python -m venv /opt/venv && \
-    /opt/venv/bin/pip install --pre torch  -f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html && \
-    /opt/venv/bin/pip install transformers tqdm numpy scikit-learn scipy nltk sentencepiece flask Pillow gunicorn && \
-    /opt/venv/bin/pip install --no-deps sentence-transformers
+    /opt/venv/bin/pip install --upgrade pip setuptools wheel && \
+    /opt/venv/bin/pip install --no-deps -r requirements.txt
 
 FROM python:3.10-slim