Imports
- github.com/elastic/beats/metricbeat/helper/server
- github.com/elastic/beats/libbeat/common/cfgwarn
- github.com/elastic/beats/metricbeat/helper/server/tcp
- github.com/elastic/beats/metricbeat/helper/server/udp
- github.com/elastic/beats/libbeat/common
- github.com/elastic/beats/libbeat/logp
- github.com/elastic/beats/metricbeat/mb
- github.com/pkg/errors