Imports github.com/opencontainers/runtime-spec/specs-go github.com/Sirupsen/logrus github.com/opencontainers/image-spec/specs-go/v1 github.com/opencontainers/image-spec/schema github.com/pkg/errors Standard library imports os path/filepath strconv strings sync time archive/zip bufio archive/tar compress/gzip bytes compress/bzip2 encoding/json fmt io io/ioutil log net/http