add motd; fix warning in ufw enablement

roles/common/tasks/main.yml

@@ -89,6 +89,15 @@
 - include: darshan-dev.yml
   when: "'darshan_dev' in myconfig and myconfig.darshan_dev"
 
+# Install motd
+- name: install MOTD
+  template:
+    src: etc/motd
+    dest: /etc/motd
+    owner: root
+    group: root
+    mode: "0644"
+
 # Configure firewall
 - name: allow SSH through UFW
   ufw:
@@ -132,7 +141,7 @@
 
 - name: enable UFW
   ufw:
-    state: enabled
-    logging: yes
+    state: "enabled"
+    logging: "on"
   tags:
     - ufw