Imports
- github.com/fsnotify/fsnotify
- github.com/kennygrant/sanitize
- github.com/prometheus/client_golang/prometheus
- github.com/prometheus/client_golang/prometheus/promhttp
- github.com/prometheus/common/log
- github.com/prometheus/common/version
- github.com/spf13/viper
- gopkg.in/alecthomas/kingpin.v2