These tasks should have check_mode:no set so that they run in check
mode, as the variables they register are used in later tasks. Otherwise,
ansible in check mode fails with undefined variable errors.
Also, some tasks may fail due to not all requirements being available
since those requirements were not created by previous tasks that were
also ran in check mode.
This adds ignore_errors to these tasks, and sets the value to the
boolean ansible_check_mode which is provided by ansible and set based on
whether or not --check was passed to the ansible command line.
Change-Id: I84bc3c14ede37959a4078fd14ce4661b7bd23f84
16dff38eb4