By Lorin Hochstein
Among the configuration administration instruments on hand, Ansible has a few distinctive advantages—it’s minimum in nature, you don’t have to set up something in your nodes, and it has a simple studying curve. This functional advisor exhibits you the way to be efficient with this software fast, no matter if you’re a developer deploying code to creation or a method administrator searching for a greater automation solution.
Author Lorin Hochstein indicates you ways to put in writing playbooks (Ansible’s configuration administration scripts), deal with distant servers, and discover the tool’s genuine energy: integrated declarative modules. You’ll notice that Ansible has the performance you wish and the simplicity you desire.
* know the way Ansible differs from different configuration administration systems
* Use the YAML dossier layout to write down your individual playbooks
* examine Ansible’s help for variables and facts
* paintings with an entire instance to set up a non-trivial application
* Use roles to simplify and reuse playbooks
* Make playbooks run quicker with ssh multiplexing, pipelining, and parallelism
* installation purposes to Amazon EC2 and different cloud platforms
* Use Ansible to create Docker photographs and set up Docker packing containers
Read or Download Ansible: Up and Running PDF
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Additional resources for Ansible: Up and Running
Human perception is a tricky thing. Note You can’t render more than 60 FPS on iOS devices. The device’s display is locked to update at 60 frames per second (Hz), and forcing cocos2d to render more frames than 60 per second is, at best, not doing anything. At worst, it can actually slow down your framerate. 0/60 if you want to run cocos2d at the fastest possible rate. HelloWorldLayer The HelloWorldLayer class is where cocos2d code does its magic to display the “Hello World” label. Before I get into that, you should understand that cocos2d uses a hierarchy of CCNode objects to determine what’s displayed where.
I’ll also introduce you to the important bits of knowledge you need to keep in mind during game development. And because it’s been a big source of confusion, I’ll explain how to enable automatic reference counting (ARC) in a cocos2d project. At the end of this chapter, you’ll have a ﬁrst cocos2d project based on one of the cocos2d project templates up and running. What You Need to Get Started In this section, I’ll quickly walk you through the requirements and necessary steps to get started. Getting registered as an iOS developer and creating the necessary provisioning proﬁles are both excellently documented by Apple, so I won’t re-create that detailed information here.
Feel free to try them if you want to have some fun with physics right now. Choose the cocos2d iOS template, click Next, name it, and save it anywhere on your computer. 24 CHAPTER 2: Getting Started Tip It’s good practice not to use space characters in Xcode project names. Xcode doesn’t mind, but some tools you use might. It’s a matter of defensively avoiding any potential hiccups. Even today, occasional problems occur related to spaces and special characters in ﬁlenames. I always restrict myself to naming anything code-related—whether projects, source ﬁles, or resources—to letters, digits, and the dash and underscore characters.