Difference between revisions of "Integration"

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(Virtuozzo/OpenVZ: git.openvz.org is no more :()
(Virtuozzo/OpenVZ: vz7 update)
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{{Status|ready}}
 
{{Status|ready}}
  
Currently, vzctl supports CRIU for checkpoint/restore of upstream containers (i.e. when non-OpenVZ kernel is used). Commands <code>vzctl suspend</code> and <code>vzctl restore</code> fully work. Live migration doesn't work yet as it requires support for <code>vzctl suspend {--suspend, --dump, --kill, --restore}</code> which is not yet implemented as it requires a separate daemon to hold the state of a partially checkpointed container (or an ability from criu tool to do that).
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As of Virtuozzo 7, CRIU is fully integrated and supported. Older OpenVZ releases used in-kernel checkpoint/restore functionality, now superseded by CRIU.
* [https://openvz.org Project homepage]
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* [https://openvz.org/Virtuozzo Virtuozzo] is a virtualization and automation solution built on top of OpenVZ.
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* [https://openvz.org/ OpenVZ]
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* [https://virtuozzo.com/ Virtuozzo]
  
 
=== LXC/LXD ===
 
=== LXC/LXD ===

Revision as of 23:35, 4 October 2016

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

Virtuozzo/OpenVZ

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 Older OpenVZ releases used in-kernel checkpoint/restore functionality, now superseded by CRIU.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

Status: ready

See also: LXC

Docker

Status: ready

See also: Docker C/R

CoreOS Rocket

Status: not started

Tools and utilities

The file utility

Status: ready

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

Screen/TMUX

Status: stalled

  • Jerome did this some time ago

Shell

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".

Other

OpenMPI

Status: stalled

  • Adrian Reber did first version of patches

Subgraph OS

Status: not started

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

SLURM workload manager

Status: ready

Wayland/Weston

Status: stalled

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

See also: X applications

Systemd

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).