1podman-container-checkpoint(1)() podman-container-checkpoint(1)()
2
6 podman-container-checkpoint - Checkpoints one or more running contain‐
7 ers
8
11 podman container checkpoint [options] container [container ...]
12
15 podman container checkpoint checkpoints all the processes in one or
16 more containers. A container can be restored from a checkpoint with
17 podman-container-restore. The container IDs or names are used as input.
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21 --all, -a
22 Checkpoint all running containers.
23 The default is false.
24 IMPORTANT: This OPTION does not need a container name or ID as input
25 argument.
26 --compress, -c=zstd | none | gzip
29 Specify the compression algorithm used for the checkpoint archive cre‐
30 ated with the --export, -e OPTION. Possible algorithms are zstd, none
31 and gzip.
32 One possible reason to use none is to enable faster creation of check‐
33 point archives. Not compressing the checkpoint archive can result in
34 faster checkpoint archive creation.
35 The default is zstd.
36 --export, -e=archive
39 Export the checkpoint to a tar.gz file. The exported checkpoint can be
40 used to import the container on another system and thus enabling con‐
41 tainer live migration. This checkpoint archive also includes all
42 changes to the container's root file-system, if not explicitly disabled
43 using --ignore-rootfs.
44 --ignore-rootfs
47 If a checkpoint is exported to a tar.gz file it is possible with the
48 help of --ignore-rootfs to explicitly disable including changes to the
49 root file-system into the checkpoint archive file.
50 The default is false.
51 *IMPORTANT: This OPTION only works in combination with --export, -e.*
52 --ignore-volumes
55 This OPTION must be used in combination with the --export, -e OPTION.
56 When this OPTION is specified, the content of volumes associated with
57 the container will not be included into the checkpoint tar.gz file.
58 The default is false.
59 --keep, -k
62 Keep all temporary log and statistics files created by CRIU during
63 checkpointing. These files are not deleted if checkpointing fails for
64 further debugging. If checkpointing succeeds these files are theoreti‐
65 cally not needed, but if these files are needed Podman can keep the
66 files for further analysis.
67 The default is false.
68 --latest, -l
71 Instead of providing the container ID or name, use the last created
72 container. If other methods than Podman are used to run containers such
73 as CRI-O, the last started container could be from either of those
74 methods.
75 The default is false.
76 IMPORTANT: This OPTION is not available with the remote Podman client.
77 This OPTION does not need a container name or ID as input argument.
78 --leave-running, -R
81 Leave the container running after checkpointing instead of stopping it.
82 The default is false.
83 --pre-checkpoint, -P
86 Dump the container's memory information only, leaving the container
87 running. Later operations will supersede prior dumps. It only works on
88 runc 1.0-rc3 or higher.
89 The default is false.
90 --tcp-established
93 Checkpoint a container with established TCP connections. If the check‐
94 point image contains established TCP connections, this OPTION is re‐
95 quired during restore. Defaults to not checkpointing containers with
96 established TCP connections.
97 The default is false.
98 --with-previous
101 Check out the container with previous criu image files in pre-dump. It
102 only works on runc 1.0-rc3 or higher.
103 The default is false.
104 *IMPORTANT: This OPTION is not available with --pre-checkpoint*.
105
108 Make a checkpoint for the container "mywebserver".
109 # podman container checkpoint mywebserver
112 Dumps the container's memory information of the latest container into
116 an archive.
117 # podman container checkpoint -P -e pre-checkpoint.tar.gz -l
120 Keep the container's memory information from an older dump and add the
124 new container's memory information.
125 # podman container checkpoint --with-previous -e checkpoint.tar.gz -l
128 Dump the container's memory information of the latest container into an
132 archive with the specified compress method.
133 # podman container checkpoint -l --compress=none --export=dump.tar
136 # podman container checkpoint -l --compress=gzip --export=dump.tar.gz
137
141 podman(1), podman-container-restore(1)
142
145 September 2018, Originally compiled by Adrian Reber areber@redhat.com
146 ⟨mailto:areber@redhat.com⟩
147 podman-container-checkpoint(1)()