feat: add base grafana role

- include puppet-grafana module
- infra::metrics::grafana role is currently clone of base

Puppetfile

@@ -24,6 +24,7 @@ mod 'puppet-puppetboard', '9.0.0'
 mod 'puppet-nginx', '5.0.0'
 mod 'puppet-selinux', '4.1.0'
 mod 'puppet-prometheus', '13.4.0'
+mod 'puppet-grafana', '13.1.0'
 
 # other
 mod 'ghoneycutt-puppet', '3.3.0'

site/roles/manifests/infra/metrics/grafana.pp

@@ -0,0 +1,5 @@
+# a role to deploy a grafana service
+class roles::infra::metrics::grafana {
+  include profiles::defaults
+  include profiles::base
+}