Docker入門

• –detach表示後臺運行
• –publish 將程序的端口運行在本地主機的另一個端口
• –name 起名字

app.py

echo 'from flask import Flask

app = Flask(__name__)

@app.route("/")
def hello():
    return "hello world!"

if __name__ == "__main__":
    app.run(host="0.0.0.0")' 
 

Dockerfile

FROM python:3.6.1-alpine
RUN pip install flask
CMD ["python","app.py"]
COPY app.py /app.py

docker container run -t ubuntu top
docker container exec -it 1db343e6dacd bash
docker container run --detach --publish 8080:80 --name nginx nginx
docker container run --detach --publish 8081:27017 --name mongo mongo:3.4
docker container ls 
docker container stop [container id]
docker system prune

docker image build -t python-hello-world  dir
docker run -p 5001:5000 -d python-hello-world
docker image ls
docker container logs [container id] 
docker login
docker tag python-hello-world [dockerhub username]/python-hello-world
docker push [dockerhub username]/python-hello-world
docker image build -t  [dockerhub username]/python-hello-world
docker push [dockerhub  username]/python-hello-world
docker image history python-hello-world