Line 6: |
Line 6: |
| | | |
| LXC upstream has begun to integrate checkpoint/restore support through the lxc-checkpoint tool. This functionality has been in the recent released version of LXC---LXC 1.1.0 , you can install the LXC 1.1.0 or you can check out the development version on Ubuntu by doing: | | LXC upstream has begun to integrate checkpoint/restore support through the lxc-checkpoint tool. This functionality has been in the recent released version of LXC---LXC 1.1.0 , you can install the LXC 1.1.0 or you can check out the development version on Ubuntu by doing: |
− | <pre> | + | <source lang="bash"> |
| sudo add-apt-repository ppa:ubuntu-lxc/daily | | sudo add-apt-repository ppa:ubuntu-lxc/daily |
| sudo apt-get update | | sudo apt-get update |
| sudo apt-get install lxc | | sudo apt-get install lxc |
− | </pre> | + | </source> |
| | | |
| Next, create a container: | | Next, create a container: |
| | | |
− | <pre> | + | <source lang="bash"> |
− | sudo lxc-create -t ubuntu -n u1 -- -r trusty -a amd64 | + | sudo lxc-create -t ubuntu -n u1 -- -r trusty -a amd64 |
− | </pre> | + | </source> |
| | | |
| And add the following lines (as above) to its config: | | And add the following lines (as above) to its config: |
| | | |
− | <pre> | + | <source lang="bash"> |
| cat | sudo tee -a /var/lib/lxc/u1/config << EOF | | cat | sudo tee -a /var/lib/lxc/u1/config << EOF |
| # hax for criu | | # hax for criu |
Line 27: |
Line 27: |
| lxc.cgroup.devices.deny = c 5:1 rwm | | lxc.cgroup.devices.deny = c 5:1 rwm |
| EOF | | EOF |
− | </pre> | + | </source> |
| | | |
| Finally, start, and checkpoint the container: | | Finally, start, and checkpoint the container: |
| | | |
− | <pre> | + | <source lang="bash"> |
| sudo lxc-start -n u1 | | sudo lxc-start -n u1 |
| sleep 5s # let the container get to a more interesting state | | sleep 5s # let the container get to a more interesting state |
| sudo lxc-checkpoint -s -D /tmp/checkpoint -n u1 | | sudo lxc-checkpoint -s -D /tmp/checkpoint -n u1 |
− | </pre> | + | </source> |
| | | |
| At this point, the container's state is stored in /tmp/checkpoint, and the filesystem is in /var/lib/lxc/u1/rootfs. You can restore the container by doing: | | At this point, the container's state is stored in /tmp/checkpoint, and the filesystem is in /var/lib/lxc/u1/rootfs. You can restore the container by doing: |
| | | |
− | <pre> | + | <source lang="bash"> |
| sudo lxc-checkpoint -r -D /tmp/checkpoint -n u1 | | sudo lxc-checkpoint -r -D /tmp/checkpoint -n u1 |
− | </pre> | + | </source> |
| | | |
| And then, get your container's IP and ssh in: | | And then, get your container's IP and ssh in: |
| | | |
− | <pre> | + | <source lang="bash"> |
| ssh ubuntu@$(sudo lxc-info -i -H -n u1) | | ssh ubuntu@$(sudo lxc-info -i -H -n u1) |
− | </pre> | + | </source> |
| | | |
| ===Troubleshooting=== | | ===Troubleshooting=== |