The author shares a misstep during an AWS migration from IAM Users to SSO, resulting in a permissions error related to a KMS key. After discovering the issue, they detail the recovery process and a new checklist step to prevent similar problems in the future.

Amazon Redshift will discontinue support for Python user-defined functions (UDFs) after June 30, 2026, encouraging users to migrate to Lambda UDFs which offer better integration, scalability, and security. The article provides a detailed guide on how to transition existing Python UDFs to Lambda UDFs, including setup, testing, and monitoring through AWS tools.

A startup experienced a silent crash in AWS Lambda, where Node.js functions failed mid-execution without any logs or errors. Despite extensive evidence and escalation through AWS support channels, the company received no constructive engagement and was ultimately blamed for the issue, leading them to migrate their entire infrastructure to Azure.

Migrating from AWS CodeDeploy to Amazon ECS for blue/green deployments offers organizations enhanced capabilities such as service discovery options, headless service support, and improved operational features. The article outlines key considerations for migration, including differences in API and console functionalities, and details the implementation process for ECS blue/green deployments compared to CodeDeploy. Organizations are encouraged to assess their deployment strategies and configurations to leverage the benefits of ECS blue/green deployments effectively.

Migrating from the Serverless Framework to the Cloud Development Kit (CDK) involves a manual process of preserving resources, recreating them in the CDK, and importing them to maintain functionality. The author shares insights from their own migration experience, including steps to prevent resource deletion, compare CloudFormation outputs, and deploy a sample application that demonstrates the migration techniques.

Migrating Amazon EKS from version 1.29 to 1.32 involved careful planning and execution, focusing on upgrading Terraform modules, transitioning to Amazon Linux 2023, and implementing a blue/green deployment strategy to minimize downtime. The process highlighted the importance of addressing breaking changes, updating add-ons, and validating instance types to ensure a smooth upgrade across four clusters. Overall, the upgrade was completed in two weeks with minimal disruptions and enhanced security and performance.