Move free disk to /mnt/extra, add more links

Change-Id: Id542f74adaa49e320c63b66df9d622054703d7fc
diff --git a/roles/cloudlab-prep/tasks/main.yml b/roles/cloudlab-prep/tasks/main.yml
index f66e94d..bfe9cd8 100644
--- a/roles/cloudlab-prep/tasks/main.yml
+++ b/roles/cloudlab-prep/tasks/main.yml
@@ -18,3 +18,15 @@
   retries: 3
   delay: 5
 
+- name: Set up symlink targets
+  file:
+    path: "{{ item.src }}"
+    state: directory
+  with_items: "{{ cloudlab_links }}"
+
+- name: Create symlinks
+  file:
+    src: "{{ item.src }}"
+    dest: "{{ item.dest }}"
+    state: link
+  with_items: "{{ cloudlab_links }}"