roles/common: Set I/O scheduler via udev

All servers with non-rotating disks (SSDs) should be running noop,
and the rest should be running deadline.

Signed-off-by: Alan Orth <alan.orth@gmail.com>

roles/common/tasks/main.yml

@@ -43,6 +43,10 @@
   when: ansible_distribution == 'Ubuntu'
   template: src=rc.local_{{ ansible_distribution }}.j2 dest=/etc/rc.local owner=root group=root mode=0755
 
+- name: Set I/O scheduler
+  template: src=etc/udev/rules.d/60-scheduler.rules.j2 dest=/etc/udev/rules.d/60-scheduler.rules owner=root group=root mode=0644
+  tags: udev
+
 - include: ssh-keys.yml
   tags: ssh-keys