Comment 7 for bug 1712912

- Modified the task to log the full env() on which the yaql failed [1].
- A non-truncated view of that env() was then extracted [2] from the logs to http://sprunge.us/hcMW

Footnotes:
[1]
 [root@undercloud mistral]# grep -A 2 -B 2 show_env /home/stack/tripleo-common/workbooks/ceph-ansible.yaml
      - ceph_ansible_playbook: /usr/share/ceph-ansible/site-docker.yml.sample
    tasks:
      show_env:
        action: std.echo output=<% env() %>
        publish:
          output: <% task(show_env).result %>
        on-success: enable_ssh_admin
      enable_ssh_admin:
 [root@undercloud mistral]#

[2]
 [root@undercloud mistral]# grep show_env engine.log | grep "2017-08-25 16:12:45.433" | curl -F 'sprunge=<-' http://sprunge.us
http://sprunge.us/hcMW
 [root@undercloud mistral]#