MAC安装Docker Desktop

MAC上安装Docker Desktop能够网站下载安装，也能够经过brew安装。这里记录brew安装的命令：

brew cask install docker

安装完成后，建立Dockerfile

FROM nginx RUN echo 'Hello this is mywebsite' > /usr/share/nginx/html/index.html

开启Goolge Cloud Container Registy权限：

gcloud auth configure-docker

建立Dockerfile：

from flask import Flask from datetime import datetime import socket app = Flask(__name__) @app.route("/") def hello(): now = datetime.now() html1 = str(socket.gethostname()) html2 = now.strftime("%m/%d/%Y, %H:%M:%S") html = "<h1>Time: " + html2 + "\n" + "Hostname is: " + html1 + "</h1>\n"
    return html if __name__ == "__main__": app.run(host='0.0.0.0', port=80)

安装列表requirements.txt：

Flask

程序代码app.py:

from flask import Flask import socket app = Flask(__name__) @app.route("/") def hello(): html = socket.gethostname() return html if __name__ == "__main__": app.run(host='0.0.0.0', port=80)

Build Docker Image并上传:

docker build ./ -t gcr.io/central-segment-217003/web-hostname:1.0 docker push gcr.io/central-segment-217003/web-hostname:1.0

用此docker image建立docker：

docker run -d -p 127.0.0.1:80:80 gcr.io/central-segment-217003/web-hostname:1.0 $ curl localhost 423fcf67c506

查看docker状况：

$docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 423fcf67c506 gcr.io/central-segment-217003/web-hostname:1.0   "python app.py"     41 seconds ago      Up 39 seconds       127.0.0.1:80->80/tcp   sweet_napier

和显示的hostname相同。