instance wait fails

Summary

Waiting for instance to start fails.

Steps to reproduce

- name: "bootstrap OpenStack instances"
  hosts: "openstack-instances"
  gather_facts: no
  roles:
    - role: "openstack"
      action: "facts"
    - role: "ssh"
      action: "set_arguments"
    - role: "openstack"
      action: "instance/wait"

Expected behavior

Playbook waits until the machines are up.

Actual behavior

Playbook fails when parsing vm logs.

Relevant logs and/or screenshots

fatal: [consul01]: FAILED! => {"failed": true, "msg": "The conditional check '_result_log.stdout | search('Cloud-init v\\. [\\d\\.]+ finished')' failed. The error was: Unexpected templating type error occurred on ({% if _result_log.stdout | search('Cloud-init v\\. [\\d\\.]+ finished') %} True {% else %} False {% endif %}): expected string or buffer"}

Further investigation shows, that the problem is not parsing, but executing command:

fatal: [consul01 -> 127.0.0.1]: FAILED! => {"changed": false, "cmd": "'openstack --os-cloud task-bdaca-project' console log show consul01", "failed": true, "msg": "[Errno 2] No such file or directory", "rc": 2}

Possible fixes

- name: "wait for cloud-init to finish"
  command: >-
    "{{ _openstack_client_command }}" console log show
    "{{ inventory_hostname }}"
  register: _result_log
  until: "_result_log.stdout | search('Cloud-init v\\. [\\d\\.]+ finished')"
  retries: 100
  delay: 6
  changed_when: "False"
  delegate_to: "openstack-client"

command should not take _openstack_client_command in inverted commas.