Imports
- golang.org/x/crypto/ssh/agent
- github.com/coreos/etcd/clientv3
- github.com/coreos/etcd/etcdserver/etcdserverpb
- github.com/prometheus/client_golang/prometheus
- github.com/prometheus/client_golang/prometheus/promhttp
- github.com/sirupsen/logrus
- golang.org/x/crypto/ssh
- golang.org/x/time/rate