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Master AWS Certified Cloud Practitioner CLF-C02 Exam

CloudFormation Basics

Explore how AWS CloudFormation automates infrastructure as code for provisioning and managing cloud resources. Learn to write templates, update stacks, and optimize resource management with this service.

We'll cover the following...

The AWS CloudFormation service is essentially an AWS tool for dealing with the infrastructure as codeInfrastructure as Code (IaC) is a practice in DevOps where infrastructure provisioning and management are automated using code rather than through manual processes. This approach allows infrastructure to be treated in a similar manner as application code, meaning it can be versioned, reviewed, and tested. on the cloud. It is an automated AWS service that allows us to provision and manage a collection of resources, also called a stack, on the AWS Cloud using code. Almost all of the AWS resources can be created and managed on the cloud.

We can define AWS resources for their stacks by declaring them in code files called templates. We can provide this template to CloudFormation, which deploys these cloud resources. This avoids creating each resource individually using the AWS console or API themselves.

CloudFormation templates

CloudFormation templates declare resources on the AWS Cloud that we want to create and manage. Templates are written in a declarative language, either ...

JSON
JSON_example
YAML
YAML_example
{
  "AWSTemplateFormatVersion": "version date",
  "Description": "String",
  "Metadata": {
    "template metadata": {}
  },
  "Parameters": {
    "set of parameters": {}
  },
  "Rules": {
    "set of rules": {}
  },
  "Mappings": {
    "set of mappings": {}
  },
  "Conditions": {
    "set of conditions": {}
  },
  "Transform": {
    "set of transforms": {}
  },
  "Resources": {
    "set of resources": {}
  },
  "Outputs": {
    "set of outputs": {}
  }
}
The CloudFormation templates
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