1.

Record Nr.

UNISA990000984180203316

Autore

SVELTO, Orazio

Titolo

Principles of laser / Orazio Svelto ; traslated from italian and edited by David C. Hanna

Pubbl/distr/stampa

New York ; London : Plenum press, c1998

ISBN

0-306-45748-2

Edizione

[4th ed.]

Descrizione fisica

XXI, 604 p. : ill. ; 26 cm

Disciplina

621.366

Soggetti

Laser

Collocazione

621.366 SVE A

621.366 SVE B

621.366 SVE C

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia



2.

Record Nr.

UNINA9910798073703321

Autore

Shah Gourav

Titolo

Ansible playbook essentials : design automation blueprints using Ansible's playbooks to orchestrate and manage your multitier infrastructure / / Gourav Shah

Pubbl/distr/stampa

Birmingham, England : , : Packt Publishing, , 2015

©2015

ISBN

1-78439-561-7

Edizione

[1st edition]

Descrizione fisica

1 online resource (168 p.)

Collana

Community Experience Distilled

Disciplina

006.76

Soggetti

Software configuration management

Open source software

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Cover; Copyright; Credits; About the Author; Acknowledgments; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Setting Up the Learning Environment; Chapter 1: Blueprinting Your Infrastructure; Getting introduced to Ansible; Plays; YAML - the playbook language; Our first playbook; Creating a host inventory; Patterns; Tasks; Modules; Running the playbook; Review questions; Summary; Chapter 2: Going Modular with Ansible Roles; Understanding roles; Naming roles; The directory layout for roles; Creating a site-wide playbook, nesting, and using include statements

Creating the www playbookThe default and custom role paths; Parameterizing the roles; Creating a base role; Refactoring our code - creating a base role; Creating an Nginx role; Adding role dependencies; Managing files for Nginx; Automating events and actions with handlers; Adding pre-tasks and post-tasks to playbooks; Running playbooks with roles; Review questions; Summary; Chapter 3: Separating Code and Data - Variables, Facts, and Templates; Static content explosion; Separating code and data; Jinja2 templates; The template formation; Facts and variables; Automatic variables - facts

User-defined variablesWhere to define a variable; How to define a variable; Templating the Nginx configurations; Adding another layer - the MySQL role; Creating the scaffolding for the roles with Ansible-



Galaxy; Adding metadata to the role; Using variables in tasks and handlers; Creating variables; Creating tasks; Using variables in playbooks; Applying a MySQL role to the DB servers; Variable precedence; The best practices for variable usage; Review questions; Summary; Chapter 4: Bringing In Your Code - Custom Commands and Scripts; The command modules; Using the raw module

Using the command moduleUsing the shell module; Using the script module; Deploying a WordPress application - a hands-on approach; Installing WordPress; Controlling the idempotence of command modules; The registered variables; Extracting WordPress with a shell module; Configuring WordPress; Review questions; Summary; Chapter 5: Controlling Execution Flow - Conditionals; The conditional control structure; The when statements; Fact-based selection; Refactoring the MySQL role; Multilevel variable dictionaries; Merging hashes; Configuring the MySQL server selectively

Conditional control structure in Jinja2 templatesUpdating the MySQL template; Running a task only once; Executing roles conditionally; Review questions; Summary; Chapter 6: Iterative Control Structures - Loops; The omnipotent with statement; Configuring WordPress requisites; The PHP5-FPM role; Defining an array; Looping an array; Creating MySQL databases and user accounts; Creating a hash; Nested hashes; Iterating a hash; Creating Nginx virtual hosts; Defining the PHP site information; Review questions; Summary; Chapter 7: Node Discovery and Clustering; Node discovery with magic variables

Creating the load balancer role

Sommario/riassunto

If you are a systems or automation engineer who intends to automate common infrastructure tasks, deploy applications, and use orchestration to configure systems in a coordinated manner, then this book is for you. Some understanding of the Linux/Unix command-line interface is expected.