[CRIU] CRIU with Docker

[Thouraya TH]

OK, i'm going to test and see. Thank you so much.

2015-12-24 17:02 GMT+01:00 Ross Boucher <rboucher at gmail.com>:

> Yes. Docker will download the "image" called busybox (a very simply linux
> image), and it will run the command that follows, which will just print a
> counter every 3 seconds. You can see the output by running "docker logs
> <id>"
>
> On Thu, Dec 24, 2015 at 11:00 AM Thouraya TH <thouraya87 at gmail.com> wrote:
>
>> OK.
>> and about this instruction:
>>
>> busybox:latest /bin/sh -c 'i=0; while true; do echo $i; i=$(expr $i + 1);
>> sleep 3; done'
>>
>> This process will run inside the container  "test-container" ? That's it
>> ?
>>
>> 2015-12-24 16:57 GMT+01:00 Ross Boucher <rboucher at gmail.com>:
>>
>>> Yes, it creates a container named "test-container". You can omit the
>>> name and just use the id returned in future commands. Docker will use
>>> "libcontainer" (now known as runc) by default, which is its own container
>>> engine.
>>>
>>> On Thu, Dec 24, 2015 at 10:54 AM Thouraya TH <thouraya87 at gmail.com>
>>> wrote:
>>>
>>>> Ok, I'm going to test and see.
>>>> I have already CRIU installed.
>>>>
>>>> Please, i have a question about this:
>>>>
>>>>
>>>>  docker-1.9.0-dev run -d --name *test-container* busybox:latest
>>>> /bin/sh -c 'i=0; while true; do echo $i; i=$(expr $i + 1); sleep 3; done'
>>>>
>>>>
>>>>
>>>> *With this instruction:* i will create a docker container named
>>>> test-container ? what is the virtualization technology it uses?
>>>>
>>>>
>>>> *Mr Saied said: Docker can optionally use LXC as its execution driver
>>>> to create containers.  However, by default, Docker does not use LXC.**If
>>>> you simply google "docker default execution driver", it will give you a
>>>> bunch of useful links.  Here's the first one for your easy reference:*
>>>>
>>>>
>>>> *http://blog.docker.com/2014/03/docker-0-9-introducing-execution-drivers-and-libcontainer/
>>>> <http://blog.docker.com/2014/03/docker-0-9-introducing-execution-drivers-and-libcontainer/>*
>>>>
>>>> Thanks a lot for help.
>>>>
>>>>
>>>> 2015-12-24 16:29 GMT+01:00 Ross Boucher <rboucher at gmail.com>:
>>>>
>>>>> There's not really a guide available at this point. Very roughly,
>>>>> here's what you need to do:
>>>>>
>>>>> Install criu somewhere in your PATH, and install libprotobuf (though I
>>>>> don't know exactly where it needs to go)?
>>>>>
>>>>> In one terminal, start the docker daemon with something like:
>>>>> > docker-1.9.0-dev -dD
>>>>>
>>>>> in another terminal, you can now run a container, e.g.
>>>>> > docker-1.9.0-dev run -d --name test-container busybox:latest /bin/sh
>>>>> -c 'i=0; while true; do echo $i; i=$(expr $i + 1); sleep 3; done'
>>>>>
>>>>> now, you can checkpoint and restore:
>>>>> >  docker-1.9.0-dev checkpoint test-container
>>>>> >  docker-1.9.0-dev restore test-container
>>>>>
>>>>> (feel free to rename it "docker" instead of docker-1.9.0-dev)
>>>>>
>>>>>
>>>>> On Thu, Dec 24, 2015 at 10:24 AM Thouraya TH <thouraya87 at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Ok Mr Pavel, thank you so much for answer.
>>>>>>
>>>>>>
>>>>>>  @Ross Boucher: Thank you so much for help.
>>>>>>
>>>>>>
>>>>>> As mentioned on this link, I have to download these files:
>>>>>>
>>>>>> criu-1.6-patched
>>>>>> <https://github.com/boucher/docker/releases/download/v1.9.0-experimental-cr.1/criu-1.6-patched>
>>>>>>
>>>>>> docker-1.9.0-dev
>>>>>> <https://github.com/boucher/docker/releases/download/v1.9.0-experimental-cr.1/docker-1.9.0-dev>
>>>>>>
>>>>>> libprotobuf-c.so.0
>>>>>> <https://github.com/boucher/docker/releases/download/v1.9.0-experimental-cr.1/libprotobuf-c.so.0>
>>>>>>
>>>>>>
>>>>>> Source code (zip)
>>>>>> <https://github.com/boucher/docker/archive/v1.9.0-experimental-cr.1.zip>
>>>>>>
>>>>>> Source code (tar.gz)
>>>>>>
>>>>>> <https://github.com/boucher/docker/archive/v1.9.0-experimental-cr.1.tar.gz>
>>>>>>
>>>>>>
>>>>>>
>>>>>> <https://github.com/boucher/docker/archive/v1.9.0-experimental-cr.1.tar.gz>
>>>>>>
>>>>>> That’s it ?
>>>>>>
>>>>>>
>>>>>> I worked a lot with CRIU and
>>>>>> https://help.ubuntu.com/12.04/serverguide/lxc.html  but I am very
>>>>>> beginner with Docker.
>>>>>>
>>>>>>
>>>>>> How can i install this *docker-1.9.0-dev
>>>>>> <https://github.com/boucher/docker/releases/download/v1.9.0-experimental-cr.1/docker-1.9.0-dev>*
>>>>>> ? Is there any howTo ? In fact, I’d like testing Docker with a simple
>>>>>> example and then doing the snapshotting with CRIU.
>>>>>>
>>>>>>
>>>>>> Kind Regards.
>>>>>>
>>>>>>
>>>>>>
>>>>>> 2015-12-24 15:58 GMT+01:00 Ross Boucher <rboucher at gmail.com>:
>>>>>>
>>>>>>> Yes, all the info is in that thread. You can try these pre-built
>>>>>>> binaries if you like:
>>>>>>>
>>>>>>> https://github.com/boucher/docker/releases/tag/v1.9.0-experimental-cr.1
>>>>>>>
>>>>>>>
>>>>>>> On Thu, Dec 24, 2015 at 9:36 AM Pavel Emelyanov <xemul at parallels.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> On 12/24/2015 05:27 PM, Thouraya TH wrote:
>>>>>>>> > Hi all,
>>>>>>>> >
>>>>>>>> >
>>>>>>>> > As Iknow, there is a work on using CRIU with Docker. I want to
>>>>>>>> know, please, the progress
>>>>>>>> > if it is possible (Online publications? Etc..).
>>>>>>>>
>>>>>>>> Everything about it happens here:
>>>>>>>> https://github.com/docker/docker/pull/13602 and you're
>>>>>>>> welcome to join :)
>>>>>>>>
>>>>>>>> > I'd like to test criu with Docker. Can i do that ? Is there any
>>>>>>>> tutorial ?
>>>>>>>>
>>>>>>>> Please, say hello to Ross and Hui (I added them in Cc). They're one
>>>>>>>> of main guys in this area :)
>>>>>>>>
>>>>>>>> -- Pavel
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>
>>
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