2

我一直在按照这个示例剧本使用 Ansible 创建机架空间服务器

http://nicholaskuechler.com/2015/01/09/build-rackspace-cloud-servers-ansible-virtualenv/

效果很好，但一次只能在一台服务器上运行，所以我试图让它更具动态性，使用 with_items 循环遍历我想要构建的服务器数量

tasks:
- name: Rackspace cloud server build request
    local_action:
        module: rax
        credentials: "{{ credentials }}"
        name: "{{ item }}"
        flavor: "{{ flavor }}"
        image: "{{ image }}"
        region: "{{ region }}"
        files: "{{ files }}"
        wait: yes
        state: present
        networks:
        - private
        - public
    with_items:
        - server-app-01
        - server-app-02
    register: rax

这可以很好地创建服务器，但是当我尝试使用链接中的方法将其添加到部署组时，我收到一个错误，正如预期的那样，现在有一个“结果”键我尝试了各种方法并以我认为文档暗示的方式来定位它：

- name: Add new cloud server to host group
    local_action:
        module: add_host
        hostname: "{{ item.success.name }}"
        ansible_ssh_host: "{{ item.success.rax_accessipv4 }}"
        ansible_ssh_user: root
        groupname: deploy
    with_items: rax.results

（我也尝试了许多其他类型的方法来解决这个问题）但是我得到“一个或多个未定义的变量：'list object' has no attribute 'rax_accessipv4”</p>

这是我通过调试从 rax 返回的对象的精简版本。这些服务器不再存在。 http://pastebin.com/NRvM7anS

谁能告诉我哪里出错了我开始有点生气了

4

2 回答 2

2

如果您注意到的类型rax.results.success是list.

所以这：hostname: "{{ item.success.name }}"

应该

  • hostname: "{{ item.success[0].name }}"或者
  • hostname: "{{ item['success'][0]['name'] }}"

.

{
            "changed": true,
            "msg": "All items completed",
            "results": [
                {
                    "instances": [
                        {
                            "name": "server-app-01",
                            "rax_accessipv4": "134.213.51.171",
                            "rax_accessipv6": "2a00:1a48:7808:101:be76:4eff:fe08:5251",
                        }
                    ],
                    "item": "server-app-01",
                    "success": [
                        {
                            "name": "server-app-01",
                            "rax_accessipv4": "134.213.51.171",
                            "rax_accessipv6": "2a00:1a48:7808:101:be76:4eff:fe08:5251",
                        }
                    ],
                    "timeout": []
                },
          ......
}
于 2015-04-09T17:02:34.767 回答
0

我只是在与这个星期五搏斗。这是我的解决方案：

---
- name: Provision rackspace webheads
  hosts: localhost
  gather_facts: false
  max_fail_percentage: 10
  tasks:
    - name: Provision a set of instances
      local_action:
          group: servers
          count: 5
          exact_count: yes
          credentials: cred.ini
          flavor: <FLAVOR ID>
          group: raxhosts
          image: <IMAGE ID>
          key_name: <SSH KEYNAME>
          module: rax
          name: webheads
          state: present
          wait: yes
      register: rax
    - name: Add new instances to the group 'raxhosts'
      local_action:
        module: add_host
        hostname: "{{ item.name }}"
        ansible_ssh_host: "{{ item.rax_accessipv4 }}"
        ansible_ssh_pass: "{{ item.rax_adminpass }}"
        groupname: raxhosts
      with_items: rax.success
      when: rax.action == 'create'
    - name: Wait for hosts
      local_action: wait_for host={{ item.rax_accessipv4 }} port=22 delay=60 timeout=600 state=started
      with_items: rax.success

这是我的 cred.ini 的样子：

[rackspace_cloud]
username = 
api_key =

像这样运行它：

RAX_CREDS_FILE=cred.ini RAX_REGION=DFW ansible-playbook <playbook>.yml
于 2015-04-09T15:21:03.867 回答