role must not be be named like a host

roles/webservers/tasks/install_nginx.yml

@@ -0,0 +1,18 @@
+- name: webservers | nginx | installing nginx
+  package:
+    name: "{{ nginx_package }}"
+    state: latest
+
+- name: webservers | nginx | setup localhost for statistics
+  copy:
+    src: "nginx_localhost"
+    dest: "/etc/nginx/sites-available/localhost"
+
+- name: webservers | nginx | link sites-available to sites-enabled for localhost
+  file:
+    path: "/etc/nginx/sites-enabled/localhost"
+    state: link
+    src: "/etc/nginx/sites-available/localhost"
+  notify: restart_nginx
+
+- include_tasks: configure_nginx_snmpd.yml