1. Proposed title of this feature request
Enable support for day-2 changes in static network configuration

2. What is the nature and description of the request?
The purpose of this request is to provide a supported procedure to update static network configurations as a day-2 operation: as updating old DNS servers with new ones.

3. Why does the customer need this? (List the business requirements here)
Static network configuration, set at cluster deployment through ignition [0] files, can become obsolete and in need for an update. As cluster redeployment is not always an option, the request is to implement a supported way to do these changes in current/future versions of RHOCP 4, as day-2 operation.

4. List any affected packages or components.
RHCOS

[0]

[...]
"storage": {
    "files": [
      {
        "filesystem": "root",
        "group": {},
        "path": "/etc/sysconfig/network-scripts/ifcfg-ens192",
        "user": {},
        "contents": {
          "source": "data:,<content>",
          "verification": {}
        },
        "mode": 420
      },
[...]