DevOps - 配置管理工具Ansible

配置管理工具

配置管理工具（SCM，Software Configuration Management）可以将代码、软件方式实现的基础设施配置信息保存，也可以根据需求变化反复进行变更。
相关工具包括Ansible、Chef、Puppe、SaltStack等，版本管理工具有Git、Subversion等。

  • 省时省力：通过自动化进行快速设置
  • 声明式：通过配置信息对当前配置对象的具体状态进行明确描述
  • 抽象化：配置信息能涵盖细微的环境差异
  • 收敛性：不管对象的状态如何，最终都会达到期望的状态
  • 幂等性：不管执行多少次，都能得到相同的结果

Ansible

Ansible是基于python语言开发的一种开源的自动化运维工具和平台，集合了众多运维工具的优点，实现了批量配置管理、批量应用部署和运行命令执行特定任务等功能。
Ansible基于SSH来和远程主机通讯，不需要在远程主机上安装client/agents。
Ansible只是提供一种框架，本身没有批量部署的能力。真正具有批量部署的是ansible所运行的模块。主要包括：

  • 连接插件connection plugins：负责和被监控端实现通信
  • host inventory：指定操作的主机，是一个配置文件里面定义监控的主机
  • 各种模块核心模块、command模块、自定义模块
  • 借助于插件完成记录日志邮件等功能
  • playbook：剧本执行多个任务时，非必需可以让节点一次性运行多个任务

官网与教程

原文地址：https://www.cnblogs.com/anliven/p/11823891.html

时间： 2024-10-10 07:19:42

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