https://aws.amazon.com/blogs/architecture/
https://github.com/yogendras843/books
https://github.com/aws-samples
Service Catalog Administrator Guide
https://docs.aws.amazon.com/servicecatalog/latest/adminguide/getstarted-template.html
Troubleshooting
https://aws.amazon.com/premiumsupport/knowledge-center/user-data-replace-key-pair-ec2/
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking-ena.html#test-enhanced-networking-ena
https://aws.amazon.com/premiumsupport/knowledge-center/ec2-server-refused-our-key/