ReleaseEngineering:DockerMockComparison
| Feature | Mock | Docker |
|---|---|---|
| Base technology | chroot | Linux containers (lxc) |
| Bind-mount host filesystem | Yes | Soon |
| Separate set of RPM packages from host | Yes | Yes? |
| Snapshot+share environment | No | Yes |
| Maturity | Stable | Under heavy development |
| Network isolation | No | Yes |
| Resource isolation (CPU, RAM) | No | Yes |
| Filesystem management | None | Copy-on-write (via AUFS) |
| I/O, RAM, CPU, cache instrumentation | No | Yes (via cgroups) |
| Ease of manipulating environment variables inside "container" | Hard | ?? |