[Docker] Install Docker on MacOs

1. Installation

Install using Homebrew, Docker will be automatically added to the application

brew cask install docker

2. Operation

Find the Docker icon from the application and click to run, check the Docker version through the command

$ docker --version
Docker version 19.03.1, build 74b1e89
$ docker-compose --version
docker-compose version 1.24.1, build 4667896b

Try to run an Nginx server:

docker run -d -p 80:80 --name webserver nginx

After the service is running, you can visit http: // localhost, if you see "Welcome to nginx!", It means that the Docker Desktop for Mac is successfully installed.