Imports github.com/elastic/beats/libbeat/common github.com/elastic/beats/libbeat/outputs/elasticsearch github.com/elastic/beats/libbeat/beat github.com/elastic/beats/libbeat/outputs/outil github.com/elastic/beats/libbeat/common/fmtstr Standard library imports encoding/json errors flag fmt io io/ioutil net/http os path path/filepath strings time archive/zip