Ansible 批量测试机器端口

此示例主要用到 wait_for 模块，文档参见： http://docs.ansible.com/ansible/latest/wait_for_module.html

目的： 我们需要知道几百台机器的某几个端口是否开启的时候（也可用 nc 来判断）

建立 variables 文件


$ mkdir -p inventory/group_vars && touch inventory/group_vars/all.yml
$ cat nventory/group_vars/all.yml
---
ports:
- "2000"
- "3000"

hosts:

ip: "192.168.0.40"
ip: "192.168.0.41"
ip: "192.168.0.42"
ip: "192.168.0.43"
ip: "192.168.0.44"
ip: "192.168.0.45"

在建立完变量后，建立 inventory 文件

$ touch inventory/inventory
$ cat inventory/inventory
[local]
127.0.0.1

然后建立 playbook 文件

$ touch playbook.yml
$ cat playbook.yml
---
- hosts: local
connection: local

tasks:
- name: Check port
  wait_for:
    host: "{{ item.0.ip }}"
    port: "{{ item.1 }}"
    state: started
    delay: 0
    timeout: 2
  ignore_errors: yes
  with_nested:
    - "{{ hosts }}"
    - "{{ ports }}"

然后执行：

$ ansible-playbook -i inventory/inventory playbook.yml

源码见： https://github.com/penglongli/ansible-sample/tree/master/sample-4

penglongli / blog

Ansible 批量测试机器端口 #46