AWS Cloud Formation Templates Management

This article shares insights about easiest ways to deploy to cloud using AWS CloudFormation with enormous amount of sample templates and solutions available to make life easy on cloud transformation.

Introduction

AWS CloudFormation is a service that helps developers and businesses create, provision, and manage AWS resources in a predictable and orderly format-mostly by AWS DevOps Engineers and Operations/Infrastructure Managers.

If organisations aiming to implement the AWS customizations through Control Tower, it will be straight forward to deploy the AWS code commit repository to trigger selected cloud formation to choose resources to deploy in right AWS Organisation in automated schedule using new accounts in respective organisations

Source of Cloud Formation Templates

AWSLabs provide versatile solutions in the GitHub repo to refer and use right version of choice to build the cloud infra in short span of time.

Know What Is Possible?

Navigate to AWS Cloud Formation on services to verify any available templates. If nothing created, feel free to create stack with the help of repository yaml files above.

Update parameters to further customise the template for the ongoing usage of the instances. But it won't change the original template:

Changing from small to micro on instance type is still at the AWS stack usage and not on the template:

Where to Update?

If template needs to get updated, click on Update Stack button to edit via infra composer:

Change instance types from small to micro to make change in template itself followed by Validate and Update Template to get it reflected:

Give it few minutes to reflect right update to the template:

Status gets changed to complete:

Navigate to output of the template to click on Public DNS to verify if it opens the link for public connection:

Once the link opened, it shares the details of Availability Zone-proof that the connection successful:

Navigate back to instances to see if the instance reflecting with micro of t3:

Summary

Managing templates using cloud formation in AWS helpful since it helps in,

1. Cost Efficiency
2. Simplicity
3. Standardisation across the AWS Org usage of instance types
4. Consistency in Security, Availability of services since they are managed in templates
5. Feasibility to update org wide changes via Templates

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