Docker's method for creating the MySQL container
- 2020-06-03 08:48:46
The purpose of this article is to create an image of MySQL and automatically start the MySQL service in the newly created container to accept external connections
1. First create 1 directory and create 1 Dockerfile under the directory. The contents of the file are as follows
FROM centos:centos6 MAINTAINER Fanbin Kong "email@example.com" RUN yum install -y mysql-server mysql RUN /etc/init.d/mysqld start &&\ mysql -e "grant all privileges on *.* to 'root'@'%' identified by 'letmein';"&&\ mysql -e "grant all privileges on *.* to 'root'@'localhost' identified by 'letmein';"&&\ mysql -u root -pletmein -e "show databases;" EXPOSE 3306 CMD ["/usr/bin/mysqld_safe"]
2. Run the build command in the Dockerfile directory to generate the image file, using mysql_server as the image file name
sudo docker build -t mysql_server .
After running the build command, you can view it using "sudo docker images".
3. Start the container
3.1 Start the container using the following command
sudo docker run --name=mysqlserver -d -P mysql_server
After starting the container, you can use "sudo docker ps" to view it. At this point, you can see that the contents of the PORTS column are "0.0.0.0:49153-"
3306/tcp ", port 3306 of the container will be mapped to port 49153 of the host machine, so we can connect through port 49153 of the host machine, such as:
mysql -h < The host machine > -u root -pletmein -P 49153
3.2 The following command can also be used when running the container
sudo docker run --name=mysqlserver -d -p 3306:3306 mysql_server
Port 3306 of the container is mapped to port 3306 of the host machine so that we can access mysql through port 3306 of the host machine
mysql -h < The host machine > -u root -pletmein
3.3 There is another case where, for security reasons, I only want the current host machine to have access to the mysql service, at which point we can
sudo docker run --name=mysqlserver -d -p 127.0.0.1 : 3306:3306 mysql_server