1podman-container-restore(1) General Commands Manualpodman-container-restore(1)
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6 podman-container-restore - Restore one or more containers from a check‐
7 point
8
11 podman container restore [options] name [...]
12
15 podman container restore restores a container from a container check‐
16 point or checkpoint image. The container IDs, image IDs or names are
17 used as input.
18
21 --all, -a
22 Restore all checkpointed containers.
23 The default is false.
24 IMPORTANT: This OPTION does not need a container name or ID as input
25 argument.
26 --file-locks
29 Restore a container with file locks. This option is required to restore
30 file locks from a checkpoint image. If the checkpoint image does not
31 contain file locks, this option is ignored. Defaults to not restoring
32 file locks.
33 The default is false.
34 --ignore-rootfs
37 If a container is restored from a checkpoint tar.gz file it is possible
38 that it also contains all root file-system changes. With --ignore-
39 rootfs it is possible to explicitly disable applying these root file-
40 system changes to the restored container.
41 The default is false.
42 IMPORTANT: This OPTION is only available in combination with --import,
43 -i.
44 --ignore-static-ip
47 If the container was started with --ip the restored container also
48 tries to use that IP address and restore fails if that IP address is
49 already in use. This can happen, if a container is restored multiple
50 times from an exported checkpoint with --name, -n.
51 Using --ignore-static-ip tells Podman to ignore the IP address if it
54 was configured with --ip during container creation.
55 The default is false.
58 --ignore-static-mac
61 If the container was started with --mac-address the restored container
62 also tries to use that MAC address and restore fails if that MAC ad‐
63 dress is already in use. This can happen, if a container is restored
64 multiple times from an exported checkpoint with --name, -n.
65 Using --ignore-static-mac tells Podman to ignore the MAC address if it
68 was configured with --mac-address during container creation.
69 The default is false.
72 --ignore-volumes
75 This option must be used in combination with the --import, -i option.
76 When restoring containers from a checkpoint tar.gz file with this op‐
77 tion, the content of associated volumes are not restored.
78 The default is false.
79 --import, -i=file
82 Import a checkpoint tar.gz file, which was exported by Podman. This can
83 be used to import a checkpointed container from another host.
84 IMPORTANT: This OPTION does not need a container name or ID as input
85 argument.
86 During the import of a checkpoint file Podman selects the same con‐
89 tainer runtime which was used during checkpointing. This is especially
90 important if a specific (non-default) container runtime was specified
91 during container creation. Podman also aborts the restore if the con‐
92 tainer runtime specified during restore does not much the container
93 runtime used for container creation.
94 --import-previous=file
97 Import a pre-checkpoint tar.gz file which was exported by Podman. This
98 option must be used with -i or --import. It only works on runc 1.0-rc3
99 or higher. IMPORTANT: This OPTION is not supported on the remote
100 client, including Mac and Windows (excluding WSL2) machines.
101 --keep, -k
104 Keep all temporary log and statistics files created by CRIU during
105 checkpointing as well as restoring. These files are not deleted if
106 restoring fails for further debugging. If restoring succeeds these
107 files are theoretically not needed, but if these files are needed Pod‐
108 man can keep the files for further analysis. This includes the check‐
109 point directory with all files created during checkpointing. The size
110 required by the checkpoint directory is roughly the same as the amount
111 of memory required by the processes in the checkpointed container.
112 Without the --keep, -k option, the checkpoint is consumed and cannot be
113 used again.
114 The default is false.
115 --latest, -l
118 Instead of providing the container ID or name, use the last created
119 container. The default is false. IMPORTANT: This OPTION is not avail‐
120 able with the remote Podman client, including Mac and Windows (exclud‐
121 ing WSL2) machines. This OPTION does not need a container name or ID as
122 input argument.
123 --name, -n=name
126 If a container is restored from a checkpoint tar.gz file it is possible
127 to rename it with --name, -n. This way it is possible to restore a con‐
128 tainer from a checkpoint multiple times with different names.
129 If the --name, -n option is used, Podman does not attempt to assign the
132 same IP address to the container it was using before checkpointing as
133 each IP address can only be used once, and the restored container has
134 another IP address. This also means that --name, -n cannot be used in
135 combination with --tcp-established.
136 IMPORTANT: This OPTION is only available for a checkpoint image or in
137 combination with --import, -i.
138 --pod=name
141 Restore a container into the pod name. The destination pod for this re‐
142 store has to have the same namespaces shared as the pod this container
143 was checkpointed from (see **podman pod create --share.
144 IMPORTANT: This OPTION is only available for a checkpoint image or in
145 combination with --import, -i.
146 This option requires at least CRIU 3.16.
149 --print-stats
152 Print out statistics about restoring the container(s). The output is
153 rendered in a JSON array and contains information about how much time
154 different restore operations required. Many of the restore statistics
155 are created by CRIU and just passed through to Podman. The following
156 information is provided in the JSON array:
157 • podman_restore_duration: Overall time (in microseconds) needed
160 to restore all checkpoints.
161 • runtime_restore_duration: Time (in microseconds) the container
163 runtime needed to restore the checkpoint.
164 • forking_time: Time (in microseconds) CRIU needed to create
166 (fork) all processes in the restored container (measured by
167 CRIU).
168 • restore_time: Time (in microseconds) CRIU needed to restore
170 all processes in the container (measured by CRIU).
171 • pages_restored: Number of memory pages restored (measured by
173 CRIU).
174 The default is false.
178 --publish, -p=port
181 Replaces the ports that the container publishes, as configured during
182 the initial container start, with a new set of port forwarding rules.
183 For more details, see podman run --publish.
186 --tcp-established
189 Restore a container with established TCP connections. If the checkpoint
190 image contains established TCP connections, this option is required
191 during restore. If the checkpoint image does not contain established
192 TCP connections this option is ignored. Defaults to not restoring con‐
193 tainers with established TCP connections.
194 The default is false.
195
198 Restore the container "mywebserver".
199 # podman container restore mywebserver
201 Import a checkpoint file and a pre-checkpoint file.
205 # podman container restore --import-previous pre-checkpoint.tar.gz --import checkpoint.tar.gz
207 Start the container "mywebserver". Make a checkpoint of the container
211 and export it. Restore the container with other port ranges from the
212 exported file.
213 $ podman run --rm -p 2345:80 -d webserver
215 # podman container checkpoint -l --export=dump.tar
216 # podman container restore -p 5432:8080 --import=dump.tar
217 Start a container with the name "foobar-1". Create a checkpoint image
221 "foobar-checkpoint". Restore the container from the checkpoint image
222 with a different name.
223 # podman run --name foobar-1 -d webserver
225 # podman container checkpoint --create-image foobar-checkpoint foobar-1
226 # podman inspect foobar-checkpoint
227 # podman container restore --name foobar-2 foobar-checkpoint
228 # podman container restore --name foobar-3 foobar-checkpoint
229
233 podman(1), podman-container-checkpoint(1), podman-run(1), podman-pod-
234 create(1), criu(8)
235
238 September 2018, Originally compiled by Adrian Reber areber@redhat.com
239 ⟨mailto:areber@redhat.com⟩
240 podman-container-restore(1)