Download Automation through Chef Opscode by Navin Sabharwal PDF

By Navin Sabharwal

Automation via Chef Opscode presents an in-depth knowing of Chef, that's written in Ruby and Erlang for configuration administration, cloud infrastructure administration, approach management, and community administration.

exact at directors, experts, and architect, the booklet courses them during the complicated positive aspects of the software that are important for infrastructure automation, devops automation, and reporting. The publication presumes wisdom of Ruby and Erlang that are used as reference languages for growing recipes and cookbooks and as a refresher on them to aid the reader get on pace with the move of booklet.

The publication presents step-by-step directions on set up and configuration of Chef, utilization eventualities of Chef, in infrastructure automation through delivering universal situations like digital computer provisioning, OS configuration for Windows, Linux, and Unix, provisioning and configuration of net servers like Apache in addition to well known databases like MySQL.

It additional elaborates at the construction of recipes, and cookbooks, which assist in deployment of servers and functions to any actual, digital, or cloud situation, regardless of the dimensions of the infrastructure.

The books covers complex featureslike LWRPs and Knife and additionally comprises a number of illustrative pattern cookbooks on MySQL, Apache, and CouchDB deployment utilizing a step-by-step approach.

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Extra info for Automation through Chef Opscode

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1. The hostname should be an FQDN and should include the domain suffix as well. 2. It should be resolvable. For a production environment, we should go for a DNS entry; in a testing environment we can make an entry in /etc/hosts to ensure that the hostname is resolvable. To check whether you have configured the hostname properly, run the "hostname"command. The output should be similar to what we see in Figure 3-1. Figure 3-1. Verifying a hostname To check whether your hostname is resolvable, run the "hostname –f" command.

For example: validation_client_name “chef-validator” validation_key This option is used to specify the location of the validation key. pem” 60 Chapter 6 Working with Knife Knife is a command line utility that comes with chef and is used to interact with the chef server which is used to manage chef. Management in chef includes many tasks. • Managing nodes • Uploading cookbooks and recipes from the local chef repository to the chef server • Managing roles • Managing environments • Managing cloud resources which include provisioning on AWS (Amazon Web Services), Azure, or any other cloud provider • Bootstrapping chef on nodes Along with the aforementioned tasks, chef can be used to perform many other tasks which we discuss in the upcoming sections of this chapter.

Run the knife configure command to configure the workstation and create the knife configuration file. Figure 4-4 shows this operation. 46 Chapter 4 ■ Workstation Figure 4-4. chef and for Windows c:/users/user/. chef ) to keep the configuration file. • The URL (uniform resource locator) of the chef server: It can be the IP (Internet provider) or the FQDN (fully qualified domain name) of the server. FQDN is preferred over IP. • Client name for API (application programming interface). The admin user to be used with knife.

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