SOA_EN Encrypting an RDS DB instance – Step Functions version
Step Function is used to build a method for encrypting RDS DB instances with CloudFormation.
SSM Session Manager
SOA_EN 
AWS_EN Aurora Serverless v2 creation using CloudFormation
Learn how to create Aurora Serverless v2 using CloudFormation.
SOA_EN Use S3 bucket policy to allow or deny access on an address basis – aws:SourceIp
Use CloudFormation to build a configuration to allow or deny access on an address basis (aws:SourceIp) using an S3 bucket policy.
AWS_EN Connect to RDS from EC2 (Linux)/Lambda using IAM authentication
How to connect to RDS from EC2 (Linux)/Lambda with IAM authentication using CloudFormation.
AWS_EN Using Amazon ECS Exec to access ECS (Fargate) containers in private subnet
Learn how to use CloudFormation to access ECS (Fargate) containers in a private subnet using Amazon ECS Exec.
SAA_EN Two ways to access DynamoDB from private subnets
Two ways to access DynamoDB from private subnets using CloudFormation.
SAA_EN Introduction to FSx for Lustre using CloudFormation
Here is a configuration for an introduction to FSx for Lustre using CloudFormation.
DVA_EN Two ways to simulate IAM policies – IAM Policy Simulator / –dryrun
Two ways to simulate IAM policies using CloudFormation (IAM Policy Simulator / --dryrun option).
SAA_EN Create RDS Cross-Region Read Replica using CloudFormation
Learn how to create an RDS cross-region read replica using CloudFormation.
AWS_EN Create AMI using SSM Automation (one-time/scheduled)
How to use CloudFormation to create AMIs (one-off/periodic) with SSM Automation.