April 2023– date –

【Automatically push test images to ECR using CFN custom resources and CodeBuild】 Consider automatically pushing test images to an ECR repository when creating a CloudFormation stack. In this article, we will show you how to achieve the...

【AWS WAF String Inspection - Headers/QueryString/Body/Cookies】 One of the features provided by AWS WAF is string match rule statements. A string match statement indicates the string that you want AWS WAF to search for in a request, whe...

【Two ways to access DynamoDB from private subnets】 There are two ways to access DynamoDB from an EC2 instance in private subnets. NAT Gateway VPC Endpoint (Gateway type) This page will review how to access DynamoDB tables via the above...

【Scaling based on CloudWatch custom metrics - number of connections version】 In the following pages, we have shown how to scale according to memory usage in Auto Scaling groups. https://awstut.com/en/2022/03/05/scaling-based-on-custom-...

【All patterns of server-side encryption of S3 buckets - SSE-S3/SSE-KMS/SSE-C】 There are three patterns of server-side encryption for S3 buckets Server-side encryption with Amazon S3 managed keys (SSE-S3) Server-side encryption with AWS...

【Use Secrets Manager to generate random password】 Secrets Manager can be used to generate random passwords. https://docs.aws.amazon.com/secretsmanager/latest/userguide/cfn-example_secret.html In this page, we will generate a random pas...

【Automatically tag provisioned products using AWS Service Catalog TagOption Library】 One of the AWS SOA topics is related to deployment, provisioning, and automation. The Service Catalog TagOption Library allows you to manage tags for ...

【Introduction to AWS Service Catalog using CloudFormation】 This page covers AWS Service Catalog. Service Catalog allows organizations to centrally manage commonly deployed IT services, and helps organizations achieve consistent governa...

【Set threshold values for CloudWatch custom metrics and email notification via SNS】 The content is related to monitoring and troubleshooting, which is also part of the scope of the AWS DBA. In the following pages, we have shown how to ...

【Use EventBridge and Lambda to deliver CloudWatch custom metrics on a regular basis】 There are two ways to push custom metrics to CloudWatch you can push custom metrics to CloudWatch using the unified CloudWatch agent or the API. How c...