Centos 6 tasks

Reference - http://idroot.net/tutorials/install-cacti-monitoring-on-centos-7/
Installing cactii in a Centos 6 docker container
yum install -y php php-mysql php-gd php-pear php-common php-cli php-devel php php-mbstring nano
yum install -y php-snmp net-snmp-utils net-snmp-libs rrdtool
chkconfig snmpd on
service snmpd start
yum install -y epel-release
yum install -y cacti
yum install -y mysql-server mysql
Then run "mysql_secure_installation"
Create the cacti database

MariaDB [(none)]> create database cacti;
MariaDB [(none)]> GRANT ALL ON cacti.* TO cacti@localhost IDENTIFIED BY 'cactipass';
MariaDB [(none)]> FLUSH privileges;
MariaDB [(none)]> quit;