Zero increase sudo privileges
In the / etc / sudoers add
## Allow root to run any commands anywhere
root ALL=(ALL) ALL
rzx ALL=(ALL) ALL
First, the replacement of a warehouse source
1. Backup
sudo mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
2. Download and replace
Sudo curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
3. Production cache
sudo yum makecache
Second, the installation docker
1. Install yum-utils
sudo yum install -y yum-utils
2. Add docker warehouse
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
3. Install docker
sudo yum install docker-ce
4. View version
docker -v
Docker version 19.03.8, build afacb8b
5. Turn docker Service
sudo systemctl start docker.service
6. boot from Kai
sudo systemctl enable docker.service
7. Replace the docker hub mirroring
In the / etc / docker New
sudo vim daemon.json
{
"registry-mirrors": ["https://registry.docker-cn.com"]
}
Third, the deployment mysql
1. The image file pulling mysql
sudo docker pull mysql:5.7
2. Open container
docker run -d --name mysql --env MYSQL_ROOT_PASSWORD=rzx980411 -p 3306:3306 mysql:5.7
3. Use of Ali cloud ECS, to set about the security group, released a designated port, you can connect up.
