Imports github.com/klauspost/pgzip github.com/mitchellh/mapstructure github.com/mitchellh/packer/common github.com/mitchellh/packer/helper/config github.com/mitchellh/packer/packer github.com/mitchellh/packer/template/interpolate Standard library imports compress/flate archive/tar bytes text/template encoding/json errors fmt io io/ioutil log os path/filepath regexp runtime strings