go get github.com/cloudfoundry/bosh-bootloader/bbl

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "ec2:*",
                "cloudformation:*",
                "elasticloadbalancing:*",
                "iam:*"
            ],
            "Resource": [
                "*"
            ]
        }
    ]
}

gcloud iam service-accounts create some-account-name
gcloud iam service-accounts keys create "service-account.key.json" --iam-account "some-account-name@PROJECT_ID.iam.gserviceaccount.com"
gcloud projects add-iam-policy-binding PROJECT_ID --member 'serviceAccount:some-account-name@PROJECT_ID.iam.gserviceaccount.com' --role 'roles/editor'

$ bbl
Usage:
  bbl [GLOBAL OPTIONS] COMMAND [OPTIONS]

Global Options:
  --help      [-h]       Print usage
  --version   [-v]       Print version
  --state-dir            Directory containing bbl-state.json

Commands:
  create-lbs             Attaches load balancer(s)
  delete-lbs             Deletes attached load balancer(s)
  destroy                Tears down BOSH director infrastructure
  director-address       Prints BOSH director address
  director-username      Prints BOSH director username
  director-password      Prints BOSH director password
  director-ca-cert       Prints BOSH director CA certificate
  env-id                 Prints environment ID
  help                   Prints usage
  lbs                    Prints attached load balancer(s)
  ssh-key                Prints SSH private key
  up                     Deploys BOSH director on AWS
  update-lbs             Updates load balancer(s)
  version                Prints version

  Use "bbl [command] --help" for more information about a command.