WIn10 电脑运行Docker

参考地址: https://www.cnblogs.com/linjj/p/5606687.html

 https://docs.docker.com/engine/reference/commandline/docker/

// 这个命令将在你的容器中运行whalesay镜像
docker run docker/whalesay cowsay boo

// 本地系统中有哪些景象
docker images

// 运行自己的东西
docker run docker/whalesay cowsay xyz

//当前目录下的Dockerfile来创建一个叫做docker-whale的镜像
docker build -t docker-whale .

 

Dockerfile 内容

# Use an official Python runtime as a parent image
FROM python:2.7-slim

# Set the working directory to /app
WORKDIR /app

# Copy the current directory contents into the container at /app
COPY . /app

# Install any needed packages specified in requirements.txt
RUN pip install --trusted-host pypi.python.org -r requirements.txt

# Make port 80 available to the world outside this container
EXPOSE 80

# Define environment variable
ENV NAME World

# Run app.py when the container launches
CMD ["python", "app.py"]

requirement.txt 内容

Flask
Redis

app.py内容
from flask import Flask
from redis import Redis, RedisError
import os
import socket

# Connect to Redis
redis = Redis(host="redis", db=0, socket_connect_timeout=2, socket_timeout=2)

app = Flask(__name__)

@app.route("/")
def hello():
    try:
        visits = redis.incr("counter")
    except RedisError:
        visits = "<i>cannot connect to Redis, counter disabled</i>"

    html = "<h3>Hello {name}!</h3>" \
           "<b>Hostname:</b> {hostname}<br/>" \
           "<b>Visits:</b> {visits}"
    return html.format(name=os.getenv("NAME", "world"), hostname=socket.gethostname(), visits=visits)

if __name__ == "__main__":
    app.run(debug=True, host='0.0.0.0', port=80)

 

下面是个人的操作，WIn10电脑
基于上面的Dockerfile requirements.txt app.py, 这三个文件, 都是刚在testA文件夹下
cd testA
docker build -t dockertest2 .　// 创建dockertest2

  docker run -p 4000:80 dockertest2 // 运行dockertest2
   * Serving Flask app "app" (lazy loading)
   * Environment: production
     WARNING: Do not use the development server in a production environment.
     Use a production WSGI server instead.
   * Debug mode: on
   * Running on http://0.0.0.0:80/ (Press CTRL+C to quit)
   * Restarting with stat
   * Debugger is active!
   * Debugger PIN: 833-709-473
   192.168.99.1 - - [13/Jan/2019 09:51:43] "GET / HTTP/1.1" 200 -
   192.168.99.1 - - [13/Jan/2019 09:51:43] "GET /favicon.ico HTTP/1.1" 404 -

浏览器输出: 
(docker-machine ip => 192.168.99.100) // 查看本机的machine ip，
http://192.168.99.100:4000/  // 浏览器输入这个地址就会显示，下面的页面

docker ps -a  //显示本机的容器

　　CONTAINER ID IMAGE        COMMAND        CREATED       STATUS       PORTS                NAMES
　　c433122157a5 dockertest2 "python app.py" 5 minutes ago Up 5 minutes 0.0.0.0:4000->80/tcp loving_cray
　　3557c16e1c72 fb687c8ae361 "/bin/sh -c 'pip ins…" 37 minutes ago Exited (2) 34 minutes ago objective_mcclintock
　　26b08baff23f docker-whale "/bin/sh -c '/usr/ga…" About an hour ago Exited (0) About an hour ago nifty_blackwell
　　8910cba61f67 docker/whalesay "cowsay xum" 2 hours ago Exited (0) 2 hours ago peaceful_brattain
　　95594157df13 docker/whalesay "cowsay boo" 2 hours ago Exited (0) 2 hours ago wizardly_shannon
　　5126e2358a7f hello-world "/hello" 2 hours ago Exited (0) 2 hours ago pedantic_wu

docker stop c433122157a5 // 如果正在运行，可以停止 docker stop [CONTAINER ID]

docker rm c433122157a5 // 删除此容器

Docker 容器镜像删除
1.停止所有的container，这样才能够删除其中的images：

docker stop $(docker ps -a -q)

如果想要删除所有container的话再加一个指令：

docker rm $(docker ps -a -q)

2.查看当前有些什么images

docker images

3.删除images，通过image的id来指定删除谁

docker rmi <image id>

想要删除untagged images，也就是那些id为<None>的image的话可以用

docker rmi $(docker images | grep "^<none>" | awk "{print $3}")

要删除全部image的话

docker rmi $(docker images -q)