Fix chained gen (#695)

* use >> not > to chain certs

* fix content domain cert

Author: anandkumarpatel

ansible/roles/content-domain-proxy/tasks/main.yml

@@ -4,7 +4,7 @@
   shell: |
     cat {{ domains_root }}/{{ user_content_domain }}/cert.pem  > {{ domains_root }}/{{ user_content_domain }}/chained.pem
     echo "" >> {{ domains_root }}/{{ user_content_domain }}/chained.pem # Add newline
-    cat {{ domains_root }}/{{ user_content_domain }}/ca.pem  > {{ domains_root }}/{{ user_content_domain }}/chained.pem
+    cat {{ domains_root }}/{{ user_content_domain }}/ca.pem  >> {{ domains_root }}/{{ user_content_domain }}/chained.pem
 
 - name: create dhparam.pem
   tags: [ certs ]