restructured code

Dockerfile

@@ -1,26 +0,0 @@
-# images
-#FROM python:latest
-FROM ubuntu:latest
-
-# source files
-ADD . /opt/crawlab
-
-# add dns
-RUN cat /etc/resolv.conf
-
-# install python
-RUN apt-get update
-RUN apt-get install -y python3 python3-pip net-tools iputils-ping vim ntp
-
-# soft link
-RUN ln -s /usr/bin/pip3 /usr/local/bin/pip
-RUN ln -s /usr/bin/python3 /usr/local/bin/python
-
-# install required libraries
-RUN pip install -U setuptools
-RUN pip install -r /opt/crawlab/requirements.txt
-
-# execute apps
-WORKDIR /opt/crawlab
-CMD python ./bin/run_worker.py
-CMD python app.py