Integration

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CRIU is not so easy to be used as a standalone tool -- it works best integrated into other software. This page lists such software and provides details about the current status.

Container platforms[edit]

Virtuozzo/OpenVZ[edit]

Status: ready

As of Virtuozzo 7, CRIU is fully integrated and supported. Older OpenVZ releases used in-kernel checkpoint/restore functionality, now superseded by CRIU.

LXC/LXD[edit]

Status: ready

See also: LXC

Docker[edit]

Status: ready

See also: Docker C/R

CoreOS Rocket[edit]

Status: not started

Tools and utilities[edit]

The file utility[edit]

Status: ready

  • Starting from v1.6 new images (v1.1) will be generated
  • File utility starting from 5.23 will support these

Screen/TMUX[edit]

Status: stalled

  • Jerome did this some time ago

See also: Screen

Shell[edit]

Status: not started

It would be nice to have bash (or other shell) to launch criu with --restore-sibling option and get new kid processes from it. Right now we workaround it with "shell jobs".

See also: Shell jobs

Other[edit]

OpenMPI[edit]

Status: stalled

  • Adrian Reber did first version of patches

Subgraph OS[edit]

Status: not started

  • Subgraph OS is a desktop operation system uses containers for users applications.

SLURM workload manager[edit]

Status: ready

Wayland/Weston[edit]

Status: stalled

  • Ruslan Kuprieiev plans to patch Weston to let CRIU C/R graphical apps

See also: X applications

Systemd[edit]

Status: not started

Adrian suggested that migrating processes from one system to another works, depending on the process, pretty good. Migrating a process under systemd's control might be possible by just killing the process on the source side but it cannot become a child process of systemd on the destination of the migration without systemd knowing how to restore a process and thus making it a child process of systemd (--restore-sibling).