We stop short of rewriting all playbooks for Prometheus, and instead
add references to the task of adding playbooks for
everything (prometheus-alerts#16) where we found references to
nagios.

howto/gitlab.md

@@ -1852,7 +1852,7 @@ See also [issues YOU have voted on](https://gitlab.com/gitlab-org/gitlab/-/issue
 
 Monitoring right now is minimal: normal host-level metrics like disk
 space, CPU usage, web port and TLS certificates are monitored by
-Nagios with our normal infrastructure, as a black box.
+with our normal infrastructure, as a black box.
 
 Prometheus monitoring is built into the GitLab Omnibus package, so it
 is *not* configured through our Puppet like other Prometheus