Architecture

• Tutorial: Set up a scaled and load-balanced application

Creating an environment manually

1. SecurityGroup [SG] alb-sg
   • allow tcp/80 from 0.0.0.0/0
   • allow tcp/443 from 0.0.0.0/0
2. SecurityGroup alb-2-app-sg
   • allow tcp/80 from self
   • allow tcp/443 from self
3. TargetGroup [TG]
4. LoadBalancer [LB] (pointing to TargetGroup)
5. LaunchTemplate [LT]
6. AutoScalingGroup [ASG]
   • add to sg alb-2-app-sg
   • register ASG with TG
   • use Default version from LT

Using a custom image

1. create separate instance
2. connect via SSH
3. install nginx
4. in EC2 create image
5. modify LT to use new image
6. start instance refresh

Add a database

1. SG app-2-db
2. create instance
3. copy connection information around
   • follow Using a custom image to recreate image and renew instances