CORD-2618 If an onboarding recipe does not exist, do not run it

Change-Id: I8df410309195cdcc0a74698a30b726dbab5f377b
diff --git a/roles/xos-core-build/tasks/main.yml b/roles/xos-core-build/tasks/main.yml
index 71675b7..23d80f1 100644
--- a/roles/xos-core-build/tasks/main.yml
+++ b/roles/xos-core-build/tasks/main.yml
@@ -21,10 +21,20 @@
   set_fact:
     recipes: ['/opt/cord/orchestration/xos/xos/core/core-onboard.yaml']
 
+- name: Check to see which recipes exist
+  stat:
+    path: "{{ build_cord_dir | realpath }}/{{ item.path }}/xos/{{ item.name }}-{{ item.operation | default('onboard') }}.yaml"
+  register: service_stats
+  with_items: "{{ xos_services }}"
+
 - name: Generate list of recipes
   set_fact:
-    recipes: "{{ recipes }} + [ '/opt/cord/{{ item.path }}/xos/{{ item.name }}-{{ item.operation | default('onboard') }}.yaml']"
-  with_items: "{{ xos_services }}"
+    recipes: "{{ recipes }} + [ '/opt/cord/{{ item.0.path }}/xos/{{ item.0.name }}-{{ item.0.operation | default('onboard') }}.yaml']"
+  with_together:
+    - "{{ xos_services }}"
+    - "{{ service_stats.results }}"
+  when:
+    - item.1.stat.exists == true
 
 - name: Add in the profile library
   set_fact: