Create a system pre-check script

[trsau]

Create a script that will run a number of checks to test if the server a user wants to run the install on will have a chance of success.

Provide a true / false response to the caller + create a log file with information about the actions (if any) required to improve the level of success.

Initial items to check.

• OS System and Version
• Required install packages are available
• Minimum system requirements (memory, disk)
• Access to the Internet via port 443
• umask setting for root (0022)
• mysql-community is excluded from yum repos to allow mariaDB to install
• server can access ntp servers