What Is Chef? Tool Used For Configuration Management

Chef enables you to deploy software and applications across your entire infrastructure using a few lines of code and some clicks on buttons. The pull-based mechanism of Chef enables the worker nodes to communicate with the Chef server using the Chef client and obtain updates, new policies and any other relevant changes. Recipes are created on these workstations to implement policies on the worker nodes.

But what if you were required to do the same for hundreds or even thousands of machines of an IT organization? It would not be a suitable option to sit on every one of the devices and install the software in each of them. One of the boons of DevOps is the ability it provides to automate many tasks and processes of an organization. With Chef, it’s possible to cater to businesses with significantly large infrastructures that need to be continuously configured and maintained. Even if you have the best system administrator working for you, it’s impossible to take care of an infrastructure of such a large magnitude without systems failing. Finally, there is a Private Chef, which is the enterprise version of Chef.

Secure DevOps

Because the particulars of DevOps can depend on the technology stack used, be sure to visit DevOps and Developer to consider which of Oracle’s offerings will work best for your use case. Before you install Chef, you need to first learn about the three main components of Chef – the workstation, the server and the client or node systems. This Chef tutorial will give you an introduction to each of these components, including a hands-on demo of the installation process. There are six main steps outlined in this Chef tutorial to help you install Chef easily and efficiently on any system.

• Candidates can find interview questions for freshers and experienced candidates.
• It is easy to learn the complete Chef architecture through an online Chef course.
• Your code needs to be updated first, and as the requirements of the company change, the infrastructure’s configuration needs to change.
• This automation tool eliminates the need to create complex and lengthy scripts of code that can potentially wreak havoc in the long run.

It should run periodically to ensure that the server is always up to date (usually with a cron job or by setting up the chef-client to run as a service). Knife allows for a variety of other useful operations on the Chef server and nodes. View Chef’s Knife documentation for a chef certification devops full list of all available commands. Any changes made to your infrastructure code must pass through the Chef server to be applied to nodes. Prior to accepting or pushing changes, the Chef server authenticates all communication via its REST API using public key encryption.

What is Azure DevOps?

Chef automation also offers an application programming interface (API) for integration with other applications. Chef Server uses a Bookshelf to store its cookbooks (and related files and templates). The Bookshelf is a versioned repository (generally located at /var/opt/opscode/bookshelf; full root access is necessary for access). When a cookbook is uploaded to the Chef server, the new version is compared to the one already stored. The Chef server only stores one copy of a file or template, meaning if resources are shared between cookbooks and cookbook versions, they will not be stored multiple times. Chef Server is made up of several components to help efficiently communicate with workstations and nodes.