The Chef workstation or Chef repository, shortly chef-repo, is the project structure of a Chef-managed project and it is used on a developer workstation. The computed list of recipes associated with a node via role or as dependency of other recipes is called a run list, and it is executed in the same order it’s defined. It can be reused by multiple nodes, so you can have a cluster of nodes with the same role in the system.
A role defines a set of attributes (node specific settings) and a list of recipes for a node. Note that the Chef client is installed within the bootstrap process, when a node is created and registered on a Chef server.Įach node can have one or more roles. All data needed in this process is downloaded from the Chef server as the first step in a Chef run. This process of applying changes on nodes is called a Chef run.Ĭookbooks are made of one or more recipes that will perform automated steps, called actions, such as installing and configuring applications or creating files. Nodes use a tool called Chef client to ask the Chef server for configuration details and then applies them to itself. It stores cookbooks, the policies that are applied to nodes, and metadata that describes each node managed by Chef. The Chef server is as a hub for configuration data. The Chef process consists of three core components that interact with one another: Chef server, actual servers called nodes, and Chef workstation. Powered by a Ruby-based domain specific language (DSL), it provides a consistent abstraction layer that allows developers and system administrators to design and build scalable environments with ease. It provides an extensive library of primitives for managing every resource that is used in the process of building and maintaining web infrastructure. One of the popular frameworks for managing infrastructure provisioning and configuration is Chef.
#CHEF DOCKER TUTORIAL SOFTWARE#
Software frameworks provide conventions with the goal to encourage consistency across a team and facilitate sustainable development of a project. Chef as FrameworkĪs software development has matured, frameworks have emerged with the aim of reducing development time and allowing developers to concentrate on rapid delivery of software that meets requirements. By doing that you will gain safe, repeatable and automated processes.
#CHEF DOCKER TUTORIAL CODE#
It involves adopting automated testing and related practices that are already used in modern application development, such as version control, integration testing, small deployments, use of design patterns etc.įollowing those practices and rules means writing code to provision and manage the configuration of your servers.
Treating infrastructure as code refers to writing code, via any descriptive language, to manage server provisioning and configuration process in addition to deployment of actual application code.
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