Ansible库存：替换问题

Question

我有一个这样的清单：

[all:vars]
env_cidr_prefix='172.25'
antother_var="foo"

[VPN_SERVER]
vpn-server ansible_host="{{ env_cidr_prefix}}.0.1" 

在ansible playbook期间，库存只保存私有ip地址。我不想用公共ip替换“ansible_host=”的内容

- name: grab the vpn public_ip
  set_fact: PUBLIC_IP="{{ instance_eip.public_ip }}"
  when: inventory_hostname |search("vpn-server")

- name: update inventory with the vpn public ip
  replace:
     path: "{{ inventory_file }}"
     regexp: "{{ ansible_host }}"
     replace: "{{ PUBLIC_IP }}"
  when: inventory_hostname |search("vpn-server")

ansible_host="172.25.0.1"

ansible_host="{{ env_cidr_prefix}}.0.1" 

ok: [vpn-server] => {
    "changed": false,
    "invocation": {
        "module_args": {
            "after": null,
            "attributes": null,
            "backup": false,
            "before": null,
            "content": null,
            "delimiter": null,
            "directory_mode": null,
            "encoding": "utf-8",
            "follow": false,
            "force": null,
            "group": null,
            "mode": null,
            "owner": null,
            "path": "/home/toluna/ansible/openvpn/env.properties",
            "regexp": "172.25.0.11",
            "remote_src": null,
            "replace": "1.1.1.1",
            "selevel": null,
            "serole": null,
            "setype": null,
            "seuser": null,
            "src": null,
            "unsafe_writes": null,
            "validate": null
        }
    },
    "msg": ""
}

注意，我不能使用add_host模块，因为剧本在不同的阶段运行

有没有更好的方法做这件事？谢谢

Answer 1

好的，经过测试，我想我明白你想要实现什么。

这里有几个部分：

库存文件如下所示：

vpn-server ansible_host="{{ env_cidr_prefix}}.0.1" 

- name : Test
  hosts: "{{ variable_vpn_ip | default('vpn-server') }}"

并将其称为从一个您将特别更改的变量中读取，或者：

ansible-playbook play.yml -e "variable_vpn_ip=172.25.0.1"