Ansible EC2 模块未检索实例信息

Question

我写了一个 ansible 任务来创建 ec2 实例并将主机添加为动态主机。该任务运行良好并创建了实例，但无法检索实例信息。

我的 Ansible 版本：2.2.0.0 / Ubuntu 14.04

这是我的代码

- name: launch ec2 instance for QA
  local_action:
    module: ec2
    key_name: "{{ ec2_keypair }}"
    group: "{{ ec2_security_group }}"
    instance_type: "{{ ec2_instance_type }}"
    image: "{{ ec2_image }}"
    vpc_subnet_id: "{{ ec2_subnet_ids }}"
    region: "{{ ec2_region }}"
    instance_tags: '{"Name":"{{ec2_tag_Name}}","Type":"{{ec2_tag_Type}}","Environment":"{{ec2_tag_Environment}}"}'
    assign_public_ip: yes
    wait: true
    count: 1
  register: ec2

- debug: var=item
  with_items: ec2.instances

- add_host: name={{ item.public_ip }} >
           groups=dynamically_created_hosts
  with_items: ec2.instances

- name: Wait for the instances to boot by checking the ssh port
  wait_for: host={{item.public_ip}} port=22 delay=60 timeout=320 state=started
  with_items: ec2.instances

得到的输出是：

TASK [launch ec2 instance for QA] **********************************************
changed: [localhost -> localhost]

TASK [debug] *******************************************************************
ok: [localhost] => (item=ec2.instances) => { "item": "ec2.instances" }

TASK [add_host] ****************************************************************
fatal: [localhost]: FAILED! => {"failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'unicode object' has no attribute 'public_ip'\n\nThe error appears to have been in '/var/lib/jenkins/jobs/QA/workspace/dynamic-ec2.yml': line 37, column 7, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n - add_host: name={{ item.public_ip }} >\n ^ here\nWe could be wrong, but this one looks like it might be an issue with\nmissing quotes. Always quote template expression brackets when they\nstart a value. For instance:\n\n with_items:\n - {{ foo }}\n\nShould be written as:\n\n with_items:\n - \"{{ foo }}\"\n"}

还有其他方法吗？

Answer 1

您不能在 2.2 中使用裸变量。该语法已被弃用，并从 2.0 版开始警告用户。

您应该阅读您粘贴的错误消息，虽然它提出了不同的原因，但您应该按照给出的示例进行操作：

Should be written as:
  with_items:
    - "{{ foo }}"

在您的情况下，将所有 with_items: ec2.instances 替换为：

就足够了

with_items: "{{ ec2.instances }}"

Ansible EC2 模块未检索实例信息

Ansible EC2 Module is not retrieving instance information

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