Renamed server roles by osi they work on

roles/srv-web-7-4-core/handlers/main.yml

@@ -0,0 +1,14 @@
+---
+- name: Validate Nginx configuration
+  command: nginx -t
+  register: nginx_test
+  changed_when: false
+  failed_when: nginx_test.rc != 0
+  listen: restart nginx
+
+- name: restart nginx
+  service: 
+    name: nginx 
+    state:  restarted 
+    enabled: yes
+  listen: restart nginx