Add WIP monitor host file

monitor_host.yml

+---
+- hosts: testservers
+  become: true
+  become_user: root
+  remote_user: root
+  roles:
+      - cloudalchemy.prometheus
+      - cloudalchemy.node-exporter
+      - cloudalchemy.grafana
+  vars:
+      prometheus_targets:
+          node:
+              - targets:
+                    - localhost:9100
+      grafana_datasources:
+          - name: prometheus
+            type: prometheus
+            access: proxy
+            url: 'http://localhost:9090'
+            isDefault: true
+            basicAuth: false
+      grafana_security:
+          admin_user: admin
+          admin_password: 'changeme'
+      # todo: make LDAP
+      grafana_auth:
+          anonymous:
+              org_name: 'UCC'
+              org_role: Admin