---
master:
  ami: "ami-17ec166f"
  type: "m4.xlarge"
  key_name: "training"
  security_group_ids:
    - "sg-f3b33794"
instructorwin:
  ami: "ami-e8f6ed91"
  type: "t2.medium"
  key_name: "training"
  security_group_ids:
    - "sg-dc5409a6"
  subnet_id: "subnet-987484fe"
adserver:
  ami: "ami-e8f6ed91"
  type: "t2.medium"
  key_name: "training"
  security_group_ids:
    - "sg-dc5409a6"
  subnet_id: "subnet-987484fe"
student:
  ami: "ami-e8f6ed91"
  type: "t2.medium"
  key_name: "training"
  security_group_ids:
    - "sg-dc5409a6"
  subnet_id: "subnet-987484fe"

---
master:
  ami: "ami-17ec166f"
  type: "m4.xlarge"
  key_name: "training"
  security_group_ids:
    - "sg-f3b33794"
instructorwin:
  ami: "ami-f12df489"
  type: "t2.medium"
  key_name: "training"
  security_group_ids:
    - "sg-dc5409a6"
  subnet_id: "subnet-987484fe"
adserver:
  ami: "ami-f12df489"
  type: "t2.medium"
  key_name: "training"
  security_group_ids:
    - "sg-dc5409a6"
  subnet_id: "subnet-987484fe"
student:
  ami: "ami-f12df489"
  type: "t2.medium"
  key_name: "training"
  security_group_ids:
    - "sg-dc5409a6"
  subnet_id: "subnet-987484fe"

Update to AMI with auto-hostname functionality
Update to AMI with auto-hostname functionality
