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⟩.
criu(8), runc-restore(8), runc(8), criu(8).