@brucewayne

The error you are seeing is a known issue with the AWS Toolkit for Azure DevOps extension and you can follow discussions: ECRPushImage warning in Azure Devops due to Node10 dependency

##[warning]Task 'Amazon ECR Push' version 1 (ECRPushImage@1) is dependent on a Node version (10) that is end-of-life. Contact the extension owner for an updated version of the task. Task maintainers should review Node upgrade guidance: https://aka.ms/node-runner-guidance

If this becomes a significant problem, consider using alternative tasks, such as Bash@3 or CmdLine@2. While this is been fixed.