---
master:
  ami: "ami-ab76eccb"
  type: "m4.xlarge"
  key_name: "training"
  security_group_ids:
    - "sg-688b120f"
instructorwin:
  ami: "ami-e8f6ed91"
  type: "t2.micro"
  key_name: "training"
  security_group_ids:
    - "sg-688b120f"
    - "sg-db63e0be"
student:
  ami: "ami-e8f6ed91"
  type: "t2.micro"
  key_name: "training"
  security_group_ids:
    - "sg-688b120f"
    - "sg-db63e0be"

---
master:
  ami: "ami-ab76eccb"
  type: "m4.xlarge"
  key_name: "training"
  security_group_ids:
    - "sg-f3b33794"
instructorwin:
  ami: "ami-e8f6ed91"
  type: "t2.micro"
  key_name: "training"
  security_group_ids:
    - "sg-688b120f"
    - "sg-db63e0be"
student:
  ami: "ami-e8f6ed91"
  type: "t2.micro"
  key_name: "training"
  security_group_ids:
    - "sg-688b120f"
    - "sg-db63e0be"

Update the master's security group so it can be reached
Update the master's security group so it can be reached
