Mastering Ansible design, develop, and solve real world automation and orchestration needs by unlocking the automation capabilities of Ansible
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 Exte...
| Otros Autores: | |
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| Formato: | Libro electrónico |
| Idioma: | Inglés |
| Publicado: |
Birmingham :
Packt Publishing
2015.
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| Edición: | 1st edition |
| Colección: | Community experience distilled.
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| Materias: | |
| Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009629697906719 |
Tabla de Contenidos:
- Cover; Copyright; Credits; About the Author; Acknowledgment; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Chapter 1: System Architecture and Design of Ansible; Ansible version and configuration; Inventory parsing and data sources; The static inventory; Inventory variable data; Dynamic inventories; Run-time inventory additions; Inventory limiting; Playbook parsing; Order of operations; Relative path assumptions; Play behavior keys; Host selection for plays and tasks; Play and task names; Module transport and execution; Module reference; Module arguments
- Module transport and executionTask performance; Variable types and location; Variable types; Accessing external data; Variable precedence; Precedence order; Extra-vars; Connection variables; Most everything else; The rest of the inventory variables; Facts discovered about a system; Role defaults; Merging hashes; Summary; Chapter 2: Protecting Your Secrets with Ansible; Encrypting data at rest; Things Vault can encrypt; Creating new encrypted files; The password prompt; The password file; The password script; Encrypting existing files; Editing encrypted files
- Password rotation for encrypted filesDecrypting encrypted files; Executing ansible-playbook with Vault-encrypted files; Protecting secrets while operating; Secrets transmitted to remote hosts; Secrets logged to remote or local files; Summary; Chapter 3: Unlocking the Power of Jinja2 Templates; Control structures; Conditionals; Inline conditionals; Loops; Filtering loop items; Loop indexing; Macros; Macro variables; Data manipulation; Syntax; Useful built-in filters; default; count; random; round; Useful Ansible provided custom filters; Filters related to task status; shuffle
- Filters dealing with path namesBase64 encoding; Searching for content; Omitting undefined arguments; Python object methods; String methods; List methods; int and float methods; Comparing values; Comparisons; Logic; Tests; Summary; Chapter 4: Controlling Task Conditions; Defining a failure; Ignoring errors; Defining an error condition; Defining a change; Special handling of the command family; Suppressing a change; Summary; Chapter 5: Composing Reusable Ansible Content with Roles; Task, handler, variable, and playbook include concepts; Including tasks; Passing variable values to included tasks
- Passing complex data to included tasksConditional task includes; Tagging included tasks; Including handlers; Including variables; vars_files; Dynamic vars_files inclusion; include_vars; extra-vars; Including playbooks; Roles; Role structure; Tasks; Handlers; Variables; Modules; Dependencies; Files and templates; Putting it all together; Role dependencies; Role dependency variables; Tags; Role dependency conditionals; Role application; Mixing roles and tasks; Role sharing; Ansible Galaxy; Summary; Chapter 6: Minimizing Downtime with Rolling Deployments; In-place upgrades
- Expanding and contracting
