adding missing deploy tags

playbooks/roles/xserver/tasks/deploy.yml

@@ -25,6 +25,8 @@
 
 - name: install read-only ssh key for the content repo that is required for grading
   copy: src={{ xserver_git_identity_path }} dest=/etc/git-identity force=yes owner=ubuntu group=adm mode=60
+  tags:
+  - deploy
 
 - name: checkout grader code
   git: dest={{xserver_grader_dir}} repo={{xserver_grader_source}} version={{xserver_grader_version}}
@@ -35,6 +37,8 @@
 
 - name: remove read-only ssh key for the content repo
   file: path=/etc/git-identity state=absent
+  tags:
+  - deploy
 
 - name: start xserver
   service: name=xserver state=started