Agent skill
cloudformation
Deploy AWS resources with CloudFormation templates. Create stacks, use nested stacks, and implement drift detection. Use when deploying AWS-native IaC.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/cloudformation-bagelhole-devops-security-agen
Metadata
Additional technical details for this skill
- author
- devops-skills
- version
- 1.0
SKILL.md
CloudFormation
Deploy AWS infrastructure with native CloudFormation templates.
Template Structure
AWSTemplateFormatVersion: '2010-09-09'
Description: Web application stack
Parameters:
Environment:
Type: String
AllowedValues: [dev, staging, prod]
Resources:
WebServer:
Type: AWS::EC2::Instance
Properties:
ImageId: !Ref AMI
InstanceType: t3.micro
Tags:
- Key: Name
Value: !Sub '${Environment}-web'
Outputs:
InstanceId:
Value: !Ref WebServer
Export:
Name: !Sub '${Environment}-WebServerId'
Stack Operations
# Create stack
aws cloudformation create-stack \
--stack-name myapp \
--template-body file://template.yaml \
--parameters ParameterKey=Environment,ParameterValue=prod
# Update stack
aws cloudformation update-stack \
--stack-name myapp \
--template-body file://template.yaml
# Delete stack
aws cloudformation delete-stack --stack-name myapp
# Detect drift
aws cloudformation detect-stack-drift --stack-name myapp
Intrinsic Functions
# Reference
!Ref MyResource
# Get attribute
!GetAtt MyResource.Arn
# Substitute
!Sub 'arn:aws:s3:::${BucketName}/*'
# Conditional
!If [CreateProdResources, 't3.large', 't3.micro']
# Join
!Join ['-', [!Ref Environment, 'app', 'bucket']]
Best Practices
- Use change sets before updates
- Implement stack policies
- Use nested stacks for modularity
- Enable termination protection
- Use cfn-lint for validation
Related Skills
- terraform-aws - Alternative IaC
- aws-iam - IAM resources
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