Create firewalld rule that expose Prometheus node exporter

The softwarefactory-project.io will monitoring the logscraper host
condition.

Change-Id: I8e98a3be61226a47ae8e606853160e747a8c8f41

ansible/playbooks/deploy-services.yml

@@ -35,10 +35,17 @@
         state: started
         enabled: true
 
-    - name: Configure firewalld
+    - name: Configure firewalld for gearman
       firewalld:
         zone: internal
         port: "{{ gearman_port }}/{{ output_mode }}"
         state: enabled
         permanent: true
         immediate: true
+
+    - name: Expose Prometheus node exporter metrics for softwarefactory-project.io
+      firewalld:
+        rich_rule: 'rule family=ipv4 source address=38.102.83.250/32 port port=9100 protocol=tcp accept'
+        state: enabled
+        permanent: true
+        immediate: true