runc-checkpoint - checkpoint a running container
runc checkpoint [option ...] container-id
The checkpoint command saves the state of the running
container instance with the help of criu(8) tool, to be restored
later.
- --image-path
path
- Set path for saving criu image files. The default is ./checkpoint.
- --work-path
path
- Set path for saving criu work files and logs. The default is to reuse the
image files directory.
- --parent-path
path
- Set path for previous criu image files, in pre-dump.
- --leave-running
- Leave the process running after checkpointing.
- --tcp-established
- Allow checkpoint/restore of established TCP connections. See criu
--tcp-establised option
⟨https://criu.org/CLI/opt/--tcp-established⟩.
- --ext-unix-sk
- Allow checkpoint/restore of external unix sockets. See criu --ext-unix-sk
option ⟨https://criu.org/CLI/opt/--ext-unix-sk⟩.
- --shell-job
- Allow checkpoint/restore of shell jobs.
- --lazy-pages
- Use lazy migration mechanism. See criu --lazy-pages option
⟨https://criu.org/CLI/opt/--lazy-pages⟩.
- --status-fd
fd
- Pass a file descriptor fd to criu. Once lazy-pages
server is ready, criu writes \0 (a zero byte) to that
fd. Used together with --lazy-pages.
- --page-server
IP-address:port
- Start a page server at the specified IP-address and port.
This is used together with criu lazy-pages. See criu lazy migration
⟨https://criu.org/Lazy_migration⟩.
- --file-locks
- Allow checkpoint/restore of file locks. See criu --file-locks option
⟨https://criu.org/CLI/opt/--file-locks⟩.
- --pre-dump
- Do a pre-dump, i.e. dump container's memory information only, leaving the
container running. See criu iterative migration
⟨https://criu.org/Iterative_migration⟩.
- --manage-cgroups-mode
soft|full|strict.
- Cgroups mode. Default is soft. See criu --manage-cgroups option
⟨https://criu.org/CLI/opt/--manage-cgroups⟩.
- --empty-ns
namespace
- Checkpoint a namespace, but don't save its properties. See criu
--empty-ns option ⟨https://criu.org/CLI/opt/--empty-ns⟩.
- --auto-dedup
- Enable auto deduplication of memory images. See criu --auto-dedup option
⟨https://criu.org/CLI/opt/--auto-dedup⟩.