What does the term "Infrastructure as code" signify in Devops/Puppet?
"Infrastructure as code", also referred to as IaC, is a type of IT setup wherein developers or operations teams automatically manage and provision the technology stack for an application through software, rather than using a manual process to configure discrete hardware devices and operating systems.
Infrastructure as code is sometimes referred to as programmable or software-defined infrastructure.
The concept of infrastructure as code is similar to programming scripts, which are used to automate IT processes.Infrastructure as code uses higher-level or descriptive language to code more versatile and adaptive provisioning and deployment processes.
Many IT teams still rely on manual configurations, custom scripts, golden images or outdated tools to manage infrastructure, resulting in errors and slow deployments. Organizations looking for faster deployments treat infrastructure like software: as code that can be managed with the same tools and processes software developers use, such as version control, continuous integration, code review and automated testing. These let you make infrastructure changes more easily, rapidly, safely and reliably.
In Puppet you need to write a declarative script in a central Puppet Master that will do all the automation tasks and all other agents connected to the puppet master will use a pull configuration thus pulling the script and thereby configuring the changes to all the puppet agents.
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