Imports
- github.com/hashicorp/packer/helper/config
- github.com/hashicorp/packer/packer
- golang.org/x/crypto/ssh/agent
- github.com/hashicorp/packer/common
- github.com/hashicorp/packer/template/interpolate
- github.com/hashicorp/packer/communicator/ssh
- github.com/hashicorp/packer/helper/communicator
- github.com/mitchellh/multistep