如何使用 Ansible 获取主机 IP 和主机名 [英] How to get host IP and hostname using Ansible

问题描述

我正在尝试创建一个任务，该任务将获取清单中的主机目标 IP 地址和主机名，然后将其保存到本地目录中的文件中.

I am trying to create a task that will get the host target IP address and host-name that are in the inventory then save it to a file in the local directory.

希望像这样保存数据:

hostname:ip-address

从哪里开始?

推荐答案

我建议使用delegate_to"，我在我的电脑上试过了，它工作正常.如果文件存在，我将第一步删除它，以便它可以多次执行.这是一个非常快的例子，我建议对路径等使用变量.但我认为你可以理解

I would suggest using"delegate_to", I tried that on my computer and it worked properly. I put the first step to delete the file if it exists so it can be executed multiple times. This is a very fast example, I suggest to use variables for the path, etc. But I think you can get the idea

---
- hosts: your_inventory

  tasks:
    - name: delete the file if exists
      file:
        path: /home/yourpath/host_ip.txt
          state: absent
      delegate_to: localhost
    - name: get data to a file
      lineinfile:
        dest: /home/yourpath/host_ip.txt
        create: yes
        line: "{{hostvars[inventory_hostname].ansible_hostname}}:{{hostvars[inventory_hostname].ansible_default_ipv4.address}}"
      delegate_to: localhost

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