Amazon Linux机器-Ansible ansible_distribution *变量主要发行版本

我正在使用Ansible：2.2.0.0

我有3台机器：

两个无聊的盒子（一个CentOS 7.x和一个Ubuntu 14.04）和
第三个盒子是EC2 Amazon Linux实例（Amazon Linux AMI版本2016.03）。

在这些框中，我正在运行以下命令并获得有效的输出（如下所示）：

CentOS的：

[vagrant@myvagrant ~] $ ansible all -m setup -i "`hostname`," --connection=local -a "filter=ansible_distribution*"
myvagrant | SUCCESS => {
    "ansible_facts": {
        "ansible_distribution": "CentOS", 
        "ansible_distribution_major_version": "7", 
        "ansible_distribution_release": "Core", 
        "ansible_distribution_version": "7.2.1511"
    }, 
    "changed": false
}

Ubuntu的：

vagrant@myubuntuvagrant:~$ ansible all -m setup -i "`hostname`," --connection=local -a "filter=ansible_distribution*"
myubuntuvagrant | SUCCESS => {
    "ansible_facts": {
        "ansible_distribution": "Ubuntu", 
        "ansible_distribution_major_version": "14", 
        "ansible_distribution_release": "trusty", 
        "ansible_distribution_version": "14.04"
    }, 
    "changed": false
}
vagrant@myubuntuvagrant:~$ 

Amazon EC2实例/盒子：

$ ansible all -m setup -i "`hostname`," --connection=local -a "filter=ansible_distribution*"
ip-10-200-1-145 | SUCCESS => {
    "ansible_facts": {
        "ansible_distribution": "Amazon", 
        "ansible_distribution_major_version": "NA", 
        "ansible_distribution_release": "NA", 
        "ansible_distribution_version": "2016.03"
    }, 
    "changed": false
}

在我的Ansible剧本/ templates / yum.repos.d.file.j2文件之一中，我正在使用{{ ansible_distribution_major_version }}变量，并将其值在.repo文件中仅用baseurl作CentOS / Amazon EC2实例的属性值，即。when: ansible_distribution == "CentOS" or ansible_distribution == "Amazon"

pre_tasks:
- set_fact: ansible_distribution_major_version=6
  when: ansible_distribution == "Amazon" and ansible_distribution_major_version == "NA"