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VMware vRealize Orchestrator Essentials

VMware vRealize Orchestrator Essentials

By : Daniel Langenhan
3.4 (5)
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VMware vRealize Orchestrator Essentials

VMware vRealize Orchestrator Essentials

3.4 (5)
By: Daniel Langenhan

Overview of this book

The automation of virtual environments has become the focus of many endeavors. VMware vRealize Orchestrator is a tool that enables you to automate not only your VMware environments, but also the surrounding hardware and software infrastructure. Orchestrator is also a central tool in the VMware cloud initiative and is extensively used by products such as vRealize Automation. In this book, you will learn how Orchestrator is able to help you automate your complete VMware infrastructure as well as its surrounding hardware and software. After deploying and configuring the vRealize Orchestrator appliance, you will learn how to run the existing workflows that are a part of the Orchestrator library. You will also see how the vSphere Web Client integration of Orchestrator reduces the time you spend on your daily admin tasks. The main aspect here is to learn how to create new workflows from existing ones. You will also look at how you can create completely new workflows. This includes learning about JavaScript and using presentation features to improve the layout and user friendliness of your workflows. Toward the end, you will learn to check for errors in your workflows and debug them. By the time you're done with the book, you'll be proficient in managing your workflows.
Table of Contents (11 chapters)
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10
Index

JavaScript – the very basics


JavaScript is a script language, which means that it doesn't need to be compiled before runtime. The Java language is a "real" language, and it needs to be compiled before it can be executed. Compiling is defined as the creation of an executable (.exe) file from the Java-sourced code. For our purposes, Java and JavaScript have nothing to do with each other. JavaScript is what we will learn, and it's used to create the Orchestrator workflows and action.

To learn JavaScript, you can have a look at http://www.w3schools.com/js/.

Basic rules

Let's have a look at the rules that govern how JavaScript is written. In the next section, we will try some stuff out.

Every line ends with a semicolon

Each line of JavaScript that you write will be interpreted by Orchestrator. For Orchestrator to know that a command has ended, you need to place a semicolon (;) at its end. It's just like a full stop in a normal sentence that marks the end of a thought.

It's like the old "Let's eat,...

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