Containers/Mini-summit 2008

There will be a containers mini-summit at the OLS'08. This page is for organizing this mini-summit. Feel free to edit.

When: 22nd of July 2008
Where: Ottawa, ON, Canada.

Proposal

The mini-summit proposal sent to OLS organizers. See proposal.

Topics to discuss

• Device accessibility cgroup (maybe with remap ability)
• TTYs
• Syslog
• Checkpoint/restart
• Memory controllers
• more?..

List of attendees

Please fill in your name here if you are going to attend, or email kir at openvz dot org if you are too lazy. Surely the list is not final, so put your name even if you are not sure you can make it.

This list is in no particular order.

1. Kir Kolyshkin
2. Pavel Emelyanov
3. Denis Lunev
4. Andrey Mirkin
5. Serge Hallyn
6. Dave Hansen
7. Cedric Le Goater
8. Daniel Lezcano
9. Srivatsa Vaddagiri
10. Balbir Singh
11. Sukadev Bhattiprolu
12. Paul Menage
13. Eric W. Biederman
14. Oren Laadan
15. Yamamoto Takashi
16. Kamezawa Hiroyuki
17. Benjamin Thery
18. Herbert Pötzl
19. Oleg Nesterov
20. Dhaval Giani
21. Bart Trojanowski

Agenda

• Namespaces/Containers
  • Additional needed namespaces
    • Small namespaces What to do with small subsystem that might need virtualization. E.g. in openvz we have FUSE, binfmt_misc and some other small stuff virtualized. But how to merge it in mainline? Create a separate namespace for each? Mere them into one? How to call this then?
  • Nature of a 'container' — kernel object or userspace fiction
  • Handling of /proc and /sysfs within containers
  • Handling filesystem/namespace synchronization (not sure what the issue is)
  • How to enter a container
  • User namespaces?
• Cgroups+Resource management
  • Cgroup implementation
  • Additional cgroups and their design
  • libcg - userspace explotation of control groups/resource management
  • Resource management
• Checkpoint/Restart
  • Summary of existing c/r patchsets/designs
  • How to initiate and synchronize checkpoint/restart
  • (state of freezer subsystem?)
  • Memory state dump
  • How to dump/fetch data for resource (file, ipc) checkpoint
  • How to do restart
  • Hopefully we can make decisions here, and get a bit of a hackfest going during OLS

Moderators

• Namespaces/containers: Serge Hallyn, Dave Hansen
• Cgroups and resource management: Paul Menage, Balbir Singh, Dhaval Giani
• Checkpoint/restart: Cedric Le Goater, Oren Laadan

See also

• http://www.linuxsymposium.org/2008/cfp.php — OLS call for papers
• https://lists.linux-foundation.org/pipermail/containers/2008-January/009688.html