Pass options from docker cli to criu

[zhouxinyu]

Hi,

I am testing the docker checkpoint/restore feature based on Docker version 17.03.1-ce, I need pass some options from docker cli to criu, like --tcp-close when restore the docker, any solutions?

[adrianreber]

Currently no solution. We recently continued the discussion how to handle configuration files for the RPC case: https://lists.openvz.org/pipermail/criu/2018-May/041211.html

As docker is using runc and runc is using CRIU via RPC, that would be the solution for you. I just need to find the time to rewrite the patches.

[zhouxinyu]

Thanks @adrianreber , I inserted the options in cr_service.c#restore_using_req method as a workaround solution, looking forward to your official solution~

[adrianreber]

Also see #278

[adrianreber]

Configuration file support in RPC mode has been merged into the development branch : d1439a6

[adrianreber]

Available since CRIU 3.11. Needs opencontainers/runc#1933 to be merged. CRIU parts are finished though.

[hanwen-flow]

to answer the original request: options can be added in /etc/criu/runc.conf, and then docker will pick them up automatically.