Defining pre-install "health checks" for deployment models

[sankarshanmukhopadhyay]

It is likely that a clutch of issues around this topic exists. The basic idea is to ensure that prior to a configuration and deployment, a set of pre-flight health checks are conducted for system resources etc.

https://docs.openshift.com/container-platform/3.9/install_config/install/advanced_install.html#configuring-cluster-pre-install-checks and https://docs.openshift.com/container-platform/3.9/admin_guide/diagnostics_tool.html#ansible-based-tooling-health-checks are added here for reference purposes

[sac]

This is a good idea. We have a similar requirement for hyperconverged environment, which we implement with precheck.yml. It is run only for hyperconverged environment. Good to have for all deployments in general.