vi /etc/yum.repos.d/nginx.repo

[nginx] 
name = nginx repo 
baseurl = https://nginx.org/packages/mainline/centos/7/$basearch/ 
gpgcheck = 0 
enabled = 1

yum install -y nginx

vim /etc/nginx/nginx.conf

server {
 listen       80;
 root   /usr/share/nginx/html;
 server_name  localhost;
 #charset koi8-r;
 #access_log  /var/log/nginx/log/host.access.log  main;
 #
 location / {
       index index.php index.html index.htm;
 }
 #error_page  404              /404.html;
 #redirect server error pages to the static page /50x.html
 #
 error_page   500 502 503 504  /50x.html;
 location = /50x.html {
   root   /usr/share/nginx/html;
 }
 #pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
 #
 location ~ .php$ {
   fastcgi_pass   127.0.0.1:9000;
   fastcgi_index  index.php;
   fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
   include        fastcgi_params;
 }
}

systemctl start nginx

systemctl enable nginx 

http://<Public IP address of the CVM instance>

rpm -qa | grep -i mariadb

yum -y remove <Package name>

vi /etc/yum.repos.d/MariaDB.repo

# MariaDB 10.4 CentOS repository list - created 2019-11-05 11:56 UTC
# http://downloads.mariadb.org/mariadb/repositories/
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.4/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1

yum -y install MariaDB-client MariaDB-server

systemctl start mariadb

systemctl enable mariadb

mysql

\\q

rpm -Uvh https://mirrors.cloud.tencent.com/epel/epel-release-latest-7.noarch.rpm

rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

yum -y install mod_php72w.x86_64 php72w-cli.x86_64 php72w-common.x86_64 php72w-mysqlnd php72w-fpm.x86_64

systemctl start php-fpm

systemctl enable php-fpm

echo "<?php phpinfo(); ?>" >> /usr/share/nginx/html/index.php

systemctl restart nginx

http://<Public IP address of the CVM instance>