1Statelessness is Key
To use ASGs effectively, instances must be stateless. If an ASG terminates an instance during scale-in, any local data on that instance is destroyed. Store session state in ElastiCache or DynamoDB, and files in S3.
Learn about Auto Scaling Architecture in this comprehensive Cloud Computing tutorial. Design for failure.
UNLOCK NODES BY LEARNING NEW TAGS.
To use ASGs effectively, instances must be stateless. If an ASG terminates an instance during scale-in, any local data on that instance is destroyed. Store session state in ElastiCache or DynamoDB, and files in S3.

Pascual Vila
Frontend Instructor // Code Syllabus
Auto Scaling Group
// ASG contextInstance configuration.
// Launch Template context