Add defaults to nginx role

ansible/roles/nginx/defaults/main.yml

@@ -1,2 +1,7 @@
 ---
 # defaults file for /etc/ansible/roles/nginx
+#
+domain_name: "localhost"
+nginx_root_dir: "/var/www/html/"
+index_files: "index.html index.htm"
+

ansible/roles/nginx/files/nginx.conf

@@ -11,11 +11,11 @@ http {
   server {
     listen 80;
     server_tokens off;
-    server_name localhost;
+    server_name {{ domain_name }};
     
     location / {
-      root /var/www/html;
+      root {{ nginx_root_dir }};
-      index index.html index.htm;
+      index {{ index_files }};
     }
     
     # Uncomment to pass for SSL

ansible/roles/nginx/tasks/configure.yml

@@ -1,7 +1,7 @@
 ---
 - name: Copy nginx configuration file
-  copy: src=files/nginx.conf dest=/etc/nginx/nginx.conf
+  template: src=files/nginx.conf dest=/etc/nginx/nginx.conf
 - name: Copy index.html file
-  copy: src=files/index.html dest=/var/www/html
+  template: src=files/index.html dest=/var/www/html
   notify:
     - restart nginx