Fixed docker builds

Dockerfile

@@ -5,12 +5,24 @@ COPY ./static/package*.json /code/static/
 RUN cd /code/static && npm install
 
 # Main image
-FROM python:3.7-alpine
+FROM python:3.7-slim
+
+# Keeps Python from generating .pyc files in the container
+ENV PYTHONDONTWRITEBYTECODE 1
+# Turns off buffering for easier container logging
+ENV PYTHONUNBUFFERED 1
+
+# Install and setup poetry
+RUN pip install -U pip \
+    && apt-get update \
+    && apt install -y curl netcat gcc python3-dev \
+    && curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python - 
+    # Clear apt cache
+    # && apt-get clean \
+    # && rm -rf /var/lib/apt/lists/*
+
+ENV PATH="${PATH}:/root/.poetry/bin"
 
-# install poetry
-RUN apk update \
-    && apk add --no-cache build-base openssl-dev libffi-dev \
-    && pip3 install poetry 
 
 WORKDIR /code
 
@@ -18,7 +30,7 @@ WORKDIR /code
 COPY poetry.lock pyproject.toml ./
 
 RUN poetry config virtualenvs.create false \
-  && poetry install --no-root
+  && poetry install  --no-interaction --no-ansi --no-root
 
 # copy npm packages
 COPY --from=npm /code /code