1. Proposed title of this feature request

Enable optional processes collection at node_exporter level

2. What is the nature and description of the request?

The prometheus node_exporter can collect processes data to be exposed as metrics so for instance, you can have a metric with the number of zombie processes in a node (node_processes_state{state="Z"}) as an indication that something is happening.

3. Why does the customer need this? (List the business requirements here)

Currently there are no ways to collect such information hence zombie processes are 'invisible' to the current monitoring stack.

4. List any affected packages or components.

OpenShift 4.X