收集有关我们新实例的信息

使用模块’Cloud’中的’os_server_facts’命令[ http://docs.ansible.com/ansible/os_server_module.html] 。变量在 ./group_vars/all 中定义，实例名称在服务器中：MyOwnPersonalInstance。

$vi get_compute_info.yml
- name: Get and print instance IP
  hosts: localhost
  gather_facts: False
  tasks:
  - name: Get VM infos
    os_server_facts:
      auth:
        auth_url: https://openstack-identity.mygroup/v2.0
        username: "{{ AuthUserName }}"
        password: "{{ AuthPassword }}"
        project_name: "{{ TenantName }}"
      validate_certs: False
      server: "MyOwnPersonalInstance"

  - name: Dump all
    debug:
      var: openstack_servers

$ansible-playbook  -s get_compute_info.yml
[WARNING]: provided hosts list is empty, only localhost is available
PLAY [Get and print instance IP] ***********************************************
TASK [Get VM IP] ***************************************************************
ok: [localhost]
TASK [Affichage] ***************************************************************
ok: [localhost] => {
    "openstack_servers": [
        {
            "OS-DCF:diskConfig": "MANUAL",
            "OS-EXT-AZ:availability_zone": "fr",
            "OS-EXT-STS:power_state": 1,
            "OS-EXT-STS:task_state": null,
[...]
            "volumes": []
        }
    ]
}

PLAY RECAP *********************************************************************
localhost                  : ok=2    changed=0    unreachable=0    failed=0

这非常冗长。显示大量信息。通常只需要通过 SSH 访问新实例的 IP 地址。