AWS Autoscaling Group (ASG)

• AWS Autoscaling Group allows us to launch multiple ec2 instances and maintain the count
• ASG has two kinds of scaling
  • Fixed Number
  • Elasticity
• Lets create an ec2 autoscaling group with fixed number of ec2 instances.

Scenario:

• create an ec2 autoscaling group with fixed number of ec2 instances with php info application.
• Steps:
  • Ensure we have an ami with php info and stress tool installed. Refer Here
  • Create a Launch Template with php info ami
    
  • Create auto scaling group
    
    
    
    
    
    
    
    
    
    
    
  • Right now two ec2 instances are running lets terminate one ec2 instance and see what happens
    
    
  • Once you are done either delete the autoscaling group or update the desired capacity to zero.
    
• Exercise: Create Autoscaling group with fixed scaling with php info ami.
  • Create AMI
  • Create Launch Template (AMI is mandatory)
  • Create Autoscaling group