2014年（5）
分类： 系统运维
2014-03-27 15:32:38
Welcome to the Ansible documentation!
//欢迎参阅 Ansible 文档
Ansible is an IT automation tool. It can configure systems, deploy software, and orchestrate more advanced IT tasks such as continuous deployments or zero downtime rolling updates.
Ansible 是一个运维自动化工具。它可以配置系统，部署软件，以及协调的处理更多高级的 IT 任务，例如 持续发布，不中断业务滚动升级。
Ansible’s goals are foremost those of simplicity and maximum ease of use. It also has a strong focus on security and reliability, featuring a minimum of moving parts, usage of OpenSSH for transport (with an accelerated socket mode and pull modes as alternatives), and a language that is designed around auditability by humans – even those not familiar with the program.
Ansible 的首要目标是最大程度的简洁易用。同时，非常关注安全性 和 可靠性， 以最少的活动组件、使用OpenSSH 作为 传输工具 以及 一种对码农，甚至对编程不熟悉的用户都很友好的语言 为 特色。
We believe simplicity is relevant to all sizes of environments and design for busy users of all types – whether this means developers, sysadmins, release engineers, IT managers, and everywhere in between. Ansible is appropriate for managing small setups with a handful of instances as well as enterprise environments with many thousands.
我们相信，'简洁' 对所有运行环境以及各种繁忙的用户都是具有重要意义的，不管是开发人员、系统管理员、发布工程师、IT 经理 以及介于多种职位中的人员。Ansible 非常合适管理少至数十台实例（服务器），多至企业级的数以千计的实例。
Ansible manages machines in an agentless manner. There is never a question of how to upgrade remote daemons or the problem of not being able to manage systems because daemons are uninstalled. As OpenSSH is one of the most peer reviewed open source components, the security exposure of using the tool is greatly reduced. Ansible is decentralized – it relies on your existing OS credentials to control access to remote machines; if needed it can easily connect with Kerberos, LDAP, and other centralized authentication management systems.
Ansible 以一种无客户端的方式管理服务器。 所以，你不会碰到诸如 如何升级 远端的 守护进程 或者 因远端服务器未安装 客户端而无法管理该服务器。
因为使用 OpenSSH, 安全问题大为减少。
Ansible 是无中心化的， 它依赖于你现存的 系统认证 来对远端服务器进行访问控制。如果需要，它可以轻松的 与 Kerberos, LDAP 以及其他集中认证管理系统 相连接。
This documentation covers the current released version of Ansible (1.5.3) and also some development version features (1.6). For recent features, in each section, the version of Ansible where the feature is added is indicated. Ansible, Inc releases a new major release of Ansible approximately every 2 months. The core application evolves somewhat conservatively, valuing simplicity in language design and setup, while the community around new modules and plugins being developed and contributed moves very very quickly, typically adding 20 or so new modules in each release.
这篇文档涵盖了 当前的稳定版 Ansible (1.5.3) 以及 一些还在开发中的 1.6版本中的 新特性。
在每一节里，每一个新特性是在哪个版本里加入的 都会有提示。
Ansible 每两个月发布一个新的稳定版本。
核心版本更注重 语言设计以及安装的简洁性，所以发展相对谨慎， 但是，社区 对模块和插件的贡献是非常快速的的，大约每个稳定版都会增加 20个左右的新模块。
