CASMPET-6860 deploy node-exporter via cephadm shell in ansible

[leliasen-hpe]

Summary and Scope

Deploy node-exporter via cephadm shell in ansible that deploys smartmon on storage nodes.
We believe this change is necessary because when applying the CSM 1.4.2 patch on Alvarez, the smartmon enablement on storage nodes script failed. This was likely caused by the ceph-common version on the system. To be able to apply the node-exporter.yml file which enables smartmon, node-exported was deployed via cephadm shell. Applying node exporter via the cephadm shell should work every time and doesn't depend on the ceph-common version installed on the node.

This has been tested on Beau.

Issues and Related PRs

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• Resolves CASMPET-6860

Testing

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Tested on:

• Tested on Beau. I applied this CFS configuration to nodes with and without the admin.keyring to see that both cases worked.
  Testing was not done on a metal system. This will be tested on every storage node upgrade.

Test description:

Tested configuring storage nodes with these CFS changes. There were no errors.

Pull Request Checklist

• Version number(s) incremented, if applicable
• Copyrights updated
• License file intact
• Target branch correct
• CHANGELOG.md updated
• Testing is appropriate and complete, if applicable
• HPC Product Announcement prepared, if applicable