How to Use the CloudFormation to automatically provision a WordPress website

Join function is used heavily in AWS CloudFormation. Take a look at
Amazon document
This function is convenient when set configuration in AWS Cloudformation.

"/etc/cfn/hooks.d/cfn-auto-reloader.conf": {
"content": {
"Fn::Join": [
"action=/opt/aws/bin/cfn-init -v ",
" --stack ",
"Ref": "AWS::StackName"
" --resource WebServer ",
" --configsets wordpress_install ",
" --region ",
"Ref": "AWS::Region"
"mode": "000400",
"owner": "root",
"group": "root"

Conditions in AWS CloudFormation

  • Conditions in AWS CloudFormation allow for creating reusable templates with flexibility.
  • They can be used in two ways: specifying the condition under the resource or using the conditional intrinsic function in resource properties.
  • Conditions are strict Boolean variables evaluated by parameters and conditional functions.
  • They can be used to adjust resource attributes based on different scenarios, such as creating resources with different attributes depending on the environment (e.g., test or production).
  • In the example provided, a condition named “ProdEnv” is used with the conditional function Fn::If to determine whether the environment is production (m5.large instance) or test (t3.micro instance).

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top