Feature: Use dockerfile to build development env

Dockerfile

@@ -1,8 +1,13 @@
-FROM python:3.6
+FROM python:3.7-stretch
 ENV PYTHONUNBUFFERED 1
 WORKDIR /app
-
 COPY . /app
 
+# config nodejs
+RUN curl -L https://raw.githubusercontent.com/tj/n/master/bin/n -o n
+RUN bash n 10
+RUN npm -g install yarn
+
+WORKDIR /app
 RUN pip install pipenv
-RUN pipenv install --three --system
+RUN pipenv install --three --system --dev