Ansible工作流程

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📜 Ansible工作流程

📅 最后修改于: 2020-12-26 12:14:42 🧑 作者: Mango

Ansible通过连接到节点并向它们推出一个名为Ansible模块的小程序来工作。然后，Ansible执行了这些模块，并在完成后将其删除。模块库可以驻留在任何计算机上，并且不需要守护程序，服务器或数据库。

在上图中，管理节点是控制剧本整个执行的控制节点。清单文件提供了需要运行Ansible模块的主机列表。管理节点建立SSH连接，并在主机计算机上执行小模块并安装软件。

一旦熟练地安装了模块，Ansible便将其卸下。它连接到主机执行指令，如果成功安装，则删除在主机上复制了该代码的代码。

以下是Ansible中使用的一些重要术语，例如：

Terms	Explanation
Ansible Server	It is a machine where Ansible is installed and from which all tasks and playbooks will be executed.
Modules	The module is a command or set of similar commands which is executed on the client-side.
Task	A task is a section which consists of a single procedure to be completed.
Role	It is a way of organizing tasks and related files to be later called in a playbook.
Fact	The information fetched from the client system from the global variables with the gather facts operation.
Inventory	A file containing the data regarding the Ansible client-server.
Play	It is the execution of the playbook.
Handler	The task is called only if a notifier is present.
Notifier	The section attributed to a task which calls a handler if the output is changed.
Tag	It is a name set to a task that can be used later on to issue just that specific task or group of jobs.