AWS CloudFormation

AWS CloudFormation is a service that helps create and manage AWS resources using code. It enables you to define your infrastructure through templates, written in either JSON or YAML format. These templates serve as blueprints for building your AWS resources such as EC2 instances, S3 buckets, RDS databases, and more. With CloudFormation, you can practice Infrastructure as Code (IaC), where all resources are defined programmatically. The entire collection of resources described in a template is called a "stack." When you create a stack, CloudFormation provisions all specified resources automatically in the correct order, handling dependencies. Key benefits include: 1. Consistency: Deploy identical environments repeatedly 2. Automation: Reduce manual configuration steps 3. Version control: Track infrastructure changes just like application code 4. Dependency management: Resources are created in the proper sequence 5. Rollback capabilities: If errors occur during deployment, CloudFormation can revert changes 6. Cost estimation: Preview expected costs before deploying resources CloudFormation templates can use parameters for input values, outputs to export information, conditions for resource creation logic, and mappings to define key-value pairs. Change sets allow you to preview how updates will modify existing stacks before executing them. For complex architectures, you can use nested stacks to reuse common templates. CloudFormation Designer provides a visual interface for creating and modifying templates. The service integrates well with other AWS services like CodePipeline for CI/CD pipelines. For solutions architects, CloudFormation is essential for creating reliable, repeatable deployments and implementing infrastructure as code practices in AWS environments.

AWS CloudFormation is a service that helps create and manage AWS resources using code. It enables you to define your infrastructure through templates, written in either JSON or YAML format. These tem…

Concepts covered: AWS CloudFormation Templates, Stack policies, Drift Detection, Stacks, Change sets, Intrinsic Functions, AWS CloudFormation Designer, StackSets, Custom Resources, Rollbacks and Rollback Triggers