Imports github.com/golang/protobuf/proto github.com/hyperledger/fabric/core/container/util github.com/hyperledger/fabric/protos github.com/op/go-logging github.com/spf13/viper github.com/hyperledger/fabric/core/util Standard library imports bytes encoding/hex errors fmt io/ioutil net/url os os/exec path/filepath strings time archive/tar