[CRIU] CRIU with Docker

Thouraya TH thouraya87 at gmail.com
Thu Dec 24 08:00:51 PST 2015


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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