migrate to poetry for development

Dockerfile.dev

@@ -3,13 +3,16 @@ FROM python:3
 RUN apt-get update -y && \
     apt-get install -y python-pip python-dev
 
-
-COPY ./requirements.txt /app/requirements.txt
+RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
+    cd /usr/local/bin && \
+    ln -s /opt/poetry/bin/poetry && \
+    poetry config virtualenvs.create false
+    
+COPY ./pyproject.toml ./app/poetry.lock* /app/
 
 WORKDIR /app
 
-RUN pip install -r requirements.txt
-RUN pip install pytest
+RUN poetry install --no-root
 
 COPY ./mealie /app