Builds a packer AMI.

packer_build.sh

#!/bin/bash
rm -r vendor
bundle exec berks install --path vendor/cookbooks
packer build \
  -var "account_id=$AWS_ACCOUNT_ID" \
  -var "aws_access_key_id=$AWS_ACCESS_KEY_ID" \
  -var "aws_secret_key=$AWS_SECRET_ACCESS_KEY" \
  -var "x509_cert_path=$AWS_X509_CERT_PATH" \
  -var "x509_key_path=$AWS_X509_KEY_PATH" \
  -var "s3_bucket=packer-ami-bucket" \
  -only=amazon-instance packer.json