install murmur instead of umurmur

roles/common/tasks/nginx.yml

@@ -35,10 +35,11 @@
     size: "{{ nginx_dhparam_size }}"
     owner: root
     group: www-data
+    mode: "640"
   async: 3600
   poll: 0
   changed_when: no
-  register: nginx_dh
+  register: _nginx_dhparam
 
 - name: Use snakoil cert key as Nginx's default private key
   file:
@@ -86,11 +87,12 @@
 
 - name: Waiting for Diffie-Hellman task to complete…
   async_status:
-    jid: "{{ nginx_dh.ansible_job_id }}"
-  register: nginx_dh_job
+    jid: "{{ _nginx_dhparam.ansible_job_id }}"
+  register: _nginx_dhparam_job
   retries: 60
   delay: 30 # will retry every 30s for 30min (60 retries)
-  until: nginx_dh_job.finished
+  until: _nginx_dhparam_job.finished
+  notify: reload nginx
 
 - name: Start Nginx server
   service: