What is Terraform? Let’s understand with easy steps

This article let you know about What is Terraform?, features of Terraform and when we should used Terraform. 

What is Terraform 


Terraform is open source tool for infrastructure provisioning and automation, it developed by Hashicorp Using terraform tool it is possible to building, changing and versioning infrastructure safely and efficiently. Terraform support multi-cloud by having one work flow such as AWS, Microsoft Azure, GCP.


1.Infrastructure as Code

Infrastructure is described using a high-level configuration syntax. This allows a blueprint of your data center to be versioned and treated as you would any other code. Additionally, infrastructure can be shared and re-used.

2.Execution Plans

Terraform has a “planning” step where it generates an execution plan. The execution plan shows what Terraform will do when you call apply. This lets you avoid any surprises when Terraform manipulates infrastructure.

3.Resource Graph

Terraform builds a graph of all your resources, and parallelizes the creation and modification of any non-dependent resources. Because of this, Terraform builds infrastructure as efficiently as possible, and operators get insight into dependencies in their infrastructure.

4.Change Automation

Complex changesets can be applied to your infrastructure with minimal human interaction. With the previously mentioned execution plan and resource graph, you know exactly what Terraform will change and in what order, avoiding many possible human errors.

When we should use terraform

Terraform becomes more popular day by day because it has a simple syntax that allows easy modularity. It works support multi-cloud platform, we can do integration of Terraform with many DevOps tools. Terraform is use to manage infrastructure as code this is the one big reason that people are using terraform. DevOps practices has a key and foundation and it includes Infrastructure as code. continuous integration and continuous deployment, version control, code review etc. Terraform is one tool to consider because of its excellent features and exceptional reasons.

Lets see the some reasons to consider Terraform as one of the best DevOps tools,

1.Terraform provides a high-level description of infrastructure. Terraform lets you define infrastructure in config/code enable you to rebuild/change and track changes to infrastructure with ease.

2. Terraform completely platform agnostic as well as supports other services while there are a few alternatives but that just a single cloud provider.

3. Using Terraform you can implement all kinds of coding principles like having your code in source control and ability to write automated tests and so on.

4. Exceptional speed, operations and plan command let you see what changes have been made before apply them.

You can download terraform from www.terraform.io/

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