AWS CLOUD FORMATION

AWS CloudFormation is an AWS tool that automates the configuration of AWS resources by using template files.

Because it can automate the setup and deployment of various Infrastructure-as-a-Service (IaaS) services on the AWS, it’s also known as an infrastructure automation or Infrastructure-as-Code (IaC) tool and a cloud automation solution. Almost every AWS service is supported by CloudFormation.
CloudFormation can be used to automate the configuration of workloads that run on the most popular AWS services, such as the EC2 computing service, S3 storage service, and the IAM service for access control settings.
AWS services that cater to particular use cases, such as Ground Station, the AWS satellite management solution, can also employ CloudFormation templates.

In general, if a service runs on AWS, you can probably automate its configuration and deployment with CloudFormation.

It’s important to note that CloudFormation isn’t the only option to configure and deploy AWS services. Using the AWS command-line interface, API, or Web console, you can manually manage these procedures. When teams are just starting started with AWS and learning how to deploy services, they often use manual provisioning. Many teams rapidly realise that they need a solution like CloudFormation to make the deployment process faster and more consistent as their environments grow in size.

Benefits of CloudFormation

Deployment Speed

When you use CloudFormation templates to govern how AWS resources are configured and deployed, you may use only one template to deploy multiple instances of the same resource almost instantly. This method allows you to deploy considerably faster than if you had to manually set up each deployment by running commands on the CLI or pressing buttons in the AWS console.

The catch is that you’ll have to put in some effort to build up your CloudFormation templates. If you’ll be performing the same type of deployment numerous times, it’ll be far faster in the long run to construct a CloudFormation template that you can reuse for each deployment rather than manually configuring each one.

Upscaling

Even if you don’t plan to deploy additional instances of the same AWS resource right away, CloudFormation templates are useful since they allow you to scale up your environment rapidly when the time comes. If your applications experience greater traffic and you need to scale your environment up, you’ll be able to deploy more virtual machine instances or storage space at a moment’s notice if you maintain CloudFormation templates on hand.

Alternatively, if demand drops and you want to conserve money, you can take some of your installations offline while keeping the option to easily re-deploy them using CloudFormation when demand rises.

Integration of services

Individual services or resources, as well as many resources, can be deployed using a single CloudFormation template. You may use CloudFormation to integrate different AWS cloud services thanks to this management capability. For example, you could create a template that instals an S3 storage bucket and configures access control for it using the IAM service or creates an EC2 virtual machine within an AWS Virtual Private Cloud (VPC).

It’s simple to combine AWS services as you build out a complete cloud environment when you manage numerous services using a single template.

Consistency

You can apply the same configuration again and over again when you use CloudFormation templates to define and deploy AWS resources. No matter how many instances you generate, CloudFormation ensures that your apps and services are consistent and similar

The alternative option, which involves manually configuring each resource, runs the risk of the engineer performing the task applying different settings to different instances, leading to inconsistency. As a result, managing your environment will be more difficult because certain resources will appear different than others, even though they fulfil the same basic function. For example, you may have several EC2 instances running clones of the same application or different IAM access controls for the same service. It would be difficult to handle resources uniformly because of this inconsistency.

Updates are simple.

You can use CloudFormation templates to make changes to existing resources in addition to deploying new ones. This feature makes it easier to do things like add more storage to a fleet of ec2 machines or change access control settings.

Change management and auditing

When you manage your infrastructure with CloudFormation, you can keep track of changes depending on which templates you’ve used and how they’ve changed over time. With CloudFormation’s change tracking, you’ll be able to see how your AWS services and resources have changed over time without having to sift through logs to piece together the timeline of adjustments.

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