add dockerfile

Dockerfile

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+# Dockerfile by xianhu: build a docker image for spider or flask
+# usage: docker build -t user/centos:v06 .
+
+FROM centos:6.8
+
+MAINTAINER xianhu <qixianhu@qq.com>
+
+# change system environments
+ENV LANG en_US.UTF-8
+ENV LC_ALL en_US.UTF-8
+
+# change system local time
+RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
+
+# update yum and install something
+RUN yum update -y
+RUN yum install -y xz
+RUN yum install -y vim
+RUN yum install -y git
+RUN yum install -y wget
+RUN yum install -y crontabs
+RUN yum install -y gcc
+RUN yum install -y make
+RUN yum install -y zlib-devel
+RUN yum install -y openssl-devel
+RUN yum clean all
+
+# restart crontab service
+RUN service crond restart
+
+# download python3
+WORKDIR /root/
+RUN wget https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tar.xz
+RUN tar -xf Python-3.5.3.tar.xz
+
+# install python3
+WORKDIR /root/Python-3.5.3
+RUN ./configure
+RUN make install
+RUN make clean
+RUN make distclean
+
+# install libs of python3
+ADD ./Dockerfile_requirements.txt /root/
+WORKDIR /root/
+RUN pip3 install --upgrade pip
+RUN pip3 install -r Dockerfile_requirements.txt
+RUN rm -rf /root/*
+
+# change python to python3
+RUN ln -sf /usr/local/bin/python3 /usr/bin/python
+RUN ln -sf /usr/bin/python2.6 /usr/bin/python2
+
+# change /usr/bin/yum
+RUN sed -i 's/usr\/bin\/python/usr\/bin\/python2/g' /usr/bin/yum
+
+# cmd command
+CMD /bin/bash

Dockerfile_requirements.txt

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+virtualenv
+pylint
+beautifulsoup4
+pybloom_live
+requests
+aiohttp
+html5lib
+elasticsearch
+PyMySQL
+redis
+Flask
+Flask-Bootstrap
+Flask-HTTPAuth
+Flask-Login
+Flask-Mail
+Flask-Migrate
+Flask-Moment
+Flask-Script
+Flask-SQLAlchemy
+Flask-WTF
+gunicorn
+uWSGI