Run a javaweb application in Docker

2. Install Docker, this example uses CentOS 7, other systems installed please Baidu.
   1. Installation: Yum-y Install Docker
   2. Start: Service Docker start
   3. Some basic Docker commands are:
      1. Docker images
      2. Docker pull
      3. Docker PS
      4. Docker images xxxx
      5. Docker stop xxxx
      6. ......
4. Installing Mysql:docker Pull mysql:5.6
6. Run Mysql:docker run-d-P 3306:3306-e mysql_root_password=root mysql:5.6
   Command explanation:
   -e mysql_root_password=root means to change the root user's initialization password to root
   -D indicates background run
   -P 3,306:3,306 indicates port mappings for containers and virtual machines
8. Installing Tomcat7:docker Pull Tomcat:7
10. Upload a web app to the virtual machine/usr/local directory, here/usr/local/t, which reads the database and then uploads the data back to the browser for presentation.
12. Start Tomcat in the Docker container
    
    Command explanation:
    -v/usr/local/t:/usr/local/tomcat/webapps/t to mount the T file in the/usr/local/directory of the virtual machine to the/usr/local/tomcat/webapps/directory
    -D indicates background run
    -P 5,217:8,080 indicates port mappings for containers and virtual machines
    --privileged=true to grant Docker mount permissions
14. In the host input Http://ip:5217/T access the project:
    

Run a javaweb application in Docker