Docker Experimental (pre 1.10) with Checkpoint/Restore using CRIU

Last Update: 2016-02-16

For easy testing and experimenting, below you can find a compiled version of Docker Experimental v1.10.0 with native checkpoint and restore functionality (compiled from the cr-defunct branch of @boucher/docker).

Also, a compiled version of CRIU v1.8.1 (compiled from the no-netns branch of @boucher/criu) with support for a new proposed flag to "skip" network namespaces when checkpointing and restoring. And finally, libprotobuf, a dependency.

A few notes about this release:

• Networking support is working!
• seccomp is now on by default in Docker, but only supported in CRIU with kernel 4.13 or newer, so you'll likely want to start your containers with the flag --security-opt seccomp:unconfined

Example use:

docker run -d --security-opt seccomp:unconfined busybox /bin/sh -c 'i=0; while true; do echo $i; i=$(expr $i + 1); sleep 1; done'

If you examine the logs at this point, you should see prints of an increasing integer counter.

docker checkpoint <id>

docker restore <id>

Checking the logs again should show that the counter is still increasing. (Waiting a bit between checkpoint and restore can increase your confidence that the process actually stopped for a while)

NOTE: you may need additional dependencies:

$ ldd `which criu`
    linux-vdso.so.1 =>  (0x00007fffc3094000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f8f0d358000)
    libprotobuf-c.so.0 => /usr/lib/x86_64-linux-gnu/libprotobuf-c.so.0 (0x00007f8f0d148000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f8f0cf43000)
    libnl-3.so.200 => /lib/x86_64-linux-gnu/libnl-3.so.200 (0x00007f8f0cd29000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f8f0c964000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f8f0d57e000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f8f0c65d000)

Docker Experimental with native checkpoint/restore support using CRIU.

Last Update: 2015-08-12

For easy testing and experimenting, below you can find a compiled version of Docker Experimental v1.9.0 with native checkpoint and restore functionality (compiled from the cr-combined branch of boucher/docker).

Also, a compiled version of CRIU v1.6 and libprotobuf (required by CRIU), courtesy of @SaiedKazemi (see notes at: https://github.com/SaiedKazemi/docker/releases).

Example use:

docker run -d --publish-service test busybox /bin/sh -c 'i=0; while true; do echo $i; i=$(expr $i + 1); sleep 1; done'

If you examine the logs at this point, you should see prints of an increasing integer counter.

docker checkpoint <id>
docker restore <id>

Checking the logs again should show that the counter is still increasing. (Waiting a bit between checkpoint and restore can increase your confidence that the process actually stopped for a while)

NOTE: networking is currently not working. Once you restore a container, it will not have network connectivity.

NOTE: you may need additional dependencies:

$ ldd `which criu`
linux-vdso.so.1 =>  (0x00007fff7f79a000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f4a1bb5e000)
libprotobuf-c.so.0 => /usr/lib/x86_64-linux-gnu/libprotobuf-c.so.0 (0x00007f4a1b94e000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f4a1b749000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f4a1b384000)
/lib64/ld-linux-x86-64.so.2 (0x00007f4a1bd84000)

Docker Experimental with native checkpoint/restore support using CRIU

Last Update: 2015-11-12

For easy testing and experimenting, below you can find a compiled version of Docker Experimental v1.10.0 with native checkpoint and restore functionality (compiled from the cr-combined branch of boucher/docker).

Also, a compiled version of CRIU v1.6 and libprotobuf (required by CRIU), courtesy of @SaiedKazemi (see notes at: https://github.com/SaiedKazemi/docker/releases).

Example use:

docker run -d --publish-service test busybox /bin/sh -c 'i=0; while true; do echo $i; i=$(expr $i + 1); sleep 1; done'
If you examine the logs at this point, you should see prints of an increasing integer counter.

docker checkpoint
docker restore
Checking the logs again should show that the counter is still increasing. (Waiting a bit between checkpoint and restore can increase your confidence that the process actually stopped for a while)

NOTE: networking is currently not working. Once you restore a container, it will not have network connectivity.

NOTE: you may need additional dependencies:

$ ldd which criu
linux-vdso.so.1 => (0x00007fff7f79a000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f4a1bb5e000)
libprotobuf-c.so.0 => /usr/lib/x86_64-linux-gnu/libprotobuf-c.so.0 (0x00007f4a1b94e000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f4a1b749000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f4a1b384000)
/lib64/ld-linux-x86-64.so.2 (0x00007f4a1bd84000)