fixed deploy/run task issue

Dockerfile-task

@@ -0,0 +1,26 @@
+# 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
+
+# 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