| flag | Package flag implements command-line flag parsing. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/opencontainers/runc/libcontainer/cgroups | |
| github.com/opencontainers/runc/libcontainer/cgroups/systemd | |
| github.com/opencontainers/runc/libcontainer/configs | Package configs provides various container-related configuration types used by libcontainer. |
| github.com/sirupsen/logrus | Package logrus is a structured logger for Go, completely API compatible with the standard library logger. |
| os | Package os provides a platform-independent interface to operating system functionality. |