README.md

cf-conditions

This repository stores CloudFormation templates created as examples for the article Use Conditions to create reusable CloudFormation templates posted on www.thenindiecoder.cloud.

Prerequisites

You need to have the AWS CLI installed and properly configured.

Conditions at the resource level

Template file: cf-conditions-resource-level.yml.

To create a cloudFormation stack from this template, one for each environment, run the following commands:

create stack in the test environment

aws cloudformation create-stack --stack-name cf-conditions-resource-test --template-body file://cf-conditions-resource-level.yml --parameters ParameterKey=Environment,ParameterValue=test

create stack in the prod environment

aws cloudformation create-stack --stack-name cf-conditions-resource-prod --template-body file://cf-conditions-resource-level.yml --parameters ParameterKey=Environment,ParameterValue=prod

Conditions at the property level

Template file: cf-conditions-property-level.yml.

To create a cloudFormation stack from this template, one for each environment, run the following commands:

create stack in the test environment

aws cloudformation create-stack --stack-name cf-conditions-property-test --template-body file://cf-conditions-property-level.yml --parameters ParameterKey=Environment,ParameterValue=test

create stack in the prod environment

aws cloudformation create-stack --stack-name cf-conditions-property-prod --template-body file://cf-conditions-property-level.yml --parameters ParameterKey=Environment,ParameterValue=prod

Conditions on property level - Including or Excluding a Property

Template file: cf-conditions-property-level-noValue.yml.

To create a cloudFormation stack from this template, one for each environment, run the following commands:

create stack in the test environment

aws cloudformation create-stack --stack-name cf-conditions-property-noValue-test --template-body file://cf-conditions-property-level-noValue.yml --parameters ParameterKey=Environment,ParameterValue=test

create stack in the prod environment

aws cloudformation create-stack --stack-name cf-conditions-property-noValue-prod --template-body file://cf-conditions-property-level-noValue.yml --parameters ParameterKey=Environment,ParameterValue=prod

Working with Nested Conditions

Template file: cf-conditions-nested-conditions.yml.

To create a cloudFormation stack from this template, one for each environment, run the following commands:

create stack in the dev environment

aws cloudformation create-stack --stack-name cf-conditions-nested-conditions-dev --template-body file://cf-conditions-nested-conditions.yml --parameters ParameterKey=Environment,ParameterValue=dev

create stack in the test environment

aws cloudformation create-stack --stack-name cf-conditions-nested-conditions-test --template-body file://cf-conditions-nested-conditions.yml --parameters ParameterKey=Environment,ParameterValue=test

create stack in the prod environment

aws cloudformation create-stack --stack-name cf-conditions-nested-conditions-prod --template-body file://cf-conditions-nested-conditions.yml --parameters ParameterKey=Environment,ParameterValue=prod

Clean up

🚨 Stacks CLEAN UP: Remember to delete all your stacks to avoid unwanted costs 🚨

Run the following command for each of the stacks you created. Replace myteststack with the actual name of the stack you want to delete.

aws cloudformation delete-stack --stack-name myteststack