check_nova_services not registered in Nagios in v16

[sudeephb]

All clouds using v16 have a properly functional nrpe check within the unit (the cfg file looks correct), but the check does not appear in the nagios configuration.
I am not exactly sure when the regression appeared, but v11 seems fine.

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Imported from Launchpad using lp2gh.

• date created: 2019-05-17T13:58:29Z

• owner: aieri

• assignee: None

• duplicate of: nova_services and neutron_agent checks not being added to nrpe-external-master relation on newest O-S-C rev 16 and bionic-Rocky  #36

• the launchpad url