Imports cloud.google.com/go/storage github.com/go-kit/kit/log github.com/go-kit/kit/log/level github.com/oklog/oklog/pkg/group github.com/prometheus/client_golang/prometheus github.com/prometheus/client_golang/prometheus/promhttp Standard library imports archive/zip bytes context flag fmt io io/ioutil net/http os os/exec os/signal path/filepath strings syscall time