January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Content preview from 可编程网络自动化
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294
｜
第
9
章
如前所述，
Ansible
清单文件是
Ansible
自动化网络设备所需的两种文件之一。另一种文件
是
Ansible
剧本，也正是下一节要深入介绍的内容。
9.2.3
执行
Ansible
剧本
剧本是包含自动化指令的文件。换句话说，剧本包含用于自动化网络的各个任务和工作
流。剧本本身是用
Y
AML
编写的。如果熟悉
YAML
（参见第
5
章），那么就方便多了。
“剧本”（
playbook
）一词来自体育类比
，因此每个剧本文件包含一个或多个剧集（
play
）。
如果进一步扩展，则每个剧集又包含一个或多个任务（
task
）。
下面来看一个剧本示例，以更好地理解其结构以及相关术语。我们将介绍剧集、任务、模
块以及在剧本中使用变量，另外还会介绍剧本与清单文件之间的链接。
---
- name: PLAY 1 - ISSUE SNMP COMMANDS
hosts: iosxe
connection: local
gather_facts: no
tasks:
- name: TASK1 - DEPLOY SNMP COMMANDS
ios_command:
commands:
- show run | inc snmp
provider:
username: ntc
password: ntc123
host: "{{ inventory_hostname }}"
- name: TASK 2- DEPLOY SNMP COMMANDS
ios_config:
commands: ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.