proton: EnvironmentSpec
spec:
  vpc_cidr: 10.0.0.0/16
  public_subnet_one_cidr: 10.0.0.0/18
  public_subnet_two_cidr: 10.0.64.0/18
  private_subnet_one_cidr: 10.0.128.0/18
  private_subnet_two_cidr: 10.0.192.0/18