## 实战：python环境 * 首先需要编写Dockerfile ``` FROM python:3.7 #使用python3.7官方image LABEL maintainer = "bizzbee" #label：作者信息 RUN pip install flask #安装flask COPY app.py /app/ #把本地的源码复制到容器根目录上的app目录 WORKDIR /app #进入/app目录 EXPOSE 5000 # 暴露5000端口 CMD ["python","app.py"] # 启动python项目入口 ``` * 构建image ``` docker build -t bizzbee/python-flask-python3.7 . ``` * 启动容器，把本机5000端口映射到容器的5000端口 ``` docker run -p 5000:5000 bizzbee/python-flask-python3.7 * 查看正在运行容器 ``` ``` [root@VM_0_11_centos ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 30bc495d1944 bizzbee/python-flask-python3.7 "python app.py" 3 hours ago Up 3 hours 0.0.0.0:5000->5000/tcp loving_euclid ``` * 测试