Ansible (i) basic

1. Features

No agents: There is no need to install any client on the managed host;

No server: No servers, the use of direct command to run;

Modules in any languages: module-based operation with any language development module

Yaml,notcode: Customizing scripts with Yaml language playbook

SSH by default: SSH-based work

Strong multi-tier Solution: Multi-level command can be achieved

2. Architecture

Ansible core:ansible own Core module

Host Inventory: Master Library, defining a manageable list of hosts

Connection plugins: Connection plugin, general default based on SSH protocol connection

Modules:core modules (self-with module), custom modules (customized module)

Playbooks: Scripts to perform scheduled tasks in the order in which they are programmed (YAML,JINJIA2)

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3. Working mode

Modular design calls a specific module to accomplish a specific task, itself is the core component, short and short;

Based on Python implementation, the Paramiko,pyyaml and JINJA2 (templated) three key modules are implemented;

Paramiko:python A concurrent connection SSH host function library

Master-Slave mode work:

master:ansible, SSH client;

Slave:ssh Server

The SSH protocol is used by default:

(1) Key-based authentication

(2) Specify the account number and password in the inventory file

This article is from the "kim1220" blog, make sure to keep this source http://228984.blog.51cto.com/218984/1768774

Ansible (i) basic