全面掌握Ansible第二版:系统架构与设计详解

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"《精通Ansible - 第二版》是一本由Jesse Keating编著的全面学习Ansible的指南,适合刚入门的自动化运维和配置管理爱好者。该书是第二版的完整版,提供了406页深入讲解,旨在帮助读者掌握这一强大的自动化工具。 本书内容涵盖了Ansible的核心系统架构和设计,包括不同版本的配置和理解。首先,读者将学习到Ansible版本管理和配置的基础知识,如何解析并利用静态和动态的inventory(主机列表)数据。静态inventory是预先定义好的主机集合,而动态inventory则通过查询外部数据源实时更新。运行时inventory的扩展功能允许在执行过程中添加或修改主机列表,而库存限制则有助于控制任务的执行范围。 接着,书中详述了playbook(脚本)的解析过程以及执行顺序,强调了相对路径假设在编写中的作用。此外,讨论了play行为指令,如条件语句和循环,以及执行策略的选择,这对于理解playbook的逻辑至关重要。 在实际操作层面,作者解释了play和任务的命名规则,以及模块的传输和执行方式。模块是Ansible的核心组件,每个模块都有特定的参数和功能,例如通过ssh或local模块进行远程或本地操作。模块的性能优化也是关注点之一,了解变量类型和存储位置有助于提高效率。 书中还深入探讨了Ansible中的变量类型,如字符串、数字、布尔值等,以及如何访问外部数据。变量的优先级和预设顺序对于编写可预测的脚本至关重要。作者通过实例展示了如何利用这些概念来构建灵活且可靠的自动化流程。 《精通Ansible - 第二版》不仅提供理论知识,还包含下载链接,以便读者获取配套的PDF高清版以及示例代码和彩色图像。书中还提供了作者和审稿人的介绍,以及订阅、客户反馈、错误报告和版权政策等内容,为读者的学习旅程提供了全方位支持。 无论你是刚接触Ansible的新手还是希望深化理解的资深用户,这本书都将是你提升自动化运维技能的宝贵资源。通过学习本书,你将能掌握Ansible的强大功能,为其在实际环境中的应用打下坚实基础。"
2016-12-23 上传
Design, develop, and solve real world automation and orchestration needs by unlocking the automation capabilities of Ansible About This Book Discover how Ansible works in detail Explore use cases for Ansible's advanced features including task delegation, fast failures, and serial task execution Extend Ansible with custom modules, plugins, and inventory sources Who This Book Is For This book is intended for Ansible developers and operators who have an understanding of the core elements and applications but are now looking to enhance their skills in applying automation using Ansible. What You Will Learn Understand Ansible's code and logic flow Safeguard sensitive data within Ansible Access and manipulate complex variable data within Ansible playbooks Handle task results to manipulate change and failure definitions Organize Ansible content into a simple structure Craft a multi-tier rollout playbook utilizing load balancers and manipulating your monitoring system Utilize advanced Ansible features to orchestrate rolling updates with almost no service disruptions Troubleshoot Ansible failures to understand and resolve issues Extend Ansible with custom modules, plugins, or inventory sources In Detail Automation is critical to success in the world of DevOps. How quickly and efficiently an application deployment can be automated, or a new infrastructure can be built up, can be the difference between a successful product or a failure. Ansible provides a simple yet powerful automation engine. Beyond the basics of Ansible lie a host of advanced features which are available to help you increase efficiency and accomplish complex orchestrations with ease. This book provides you with the knowledge you need to understand how Ansible works at a fundamental level and leverage its advanced capabilities. You'll learn how to encrypt Ansible content at rest and decrypt data at runtime. You will master the advanced features and capabilities required to tackle the complex automation chal