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authorRadostin Stoyanov <radostin@redhat.com>2022-04-12 18:46:32 +0100
committerRadostin Stoyanov <radostin@redhat.com>2022-04-20 18:55:39 +0100
commit756ecd5400c7a8806890753d4f9fbb2b39eba192 (patch)
tree3c295209d2c33beaea23e7fd9b083a5a4bfc190a /libpod/container_api.go
parentfca3397dc985047e414894d6cb1623272e20eb40 (diff)
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Add support for checkpoint image
This is an enhancement proposal for the checkpoint / restore feature of Podman that enables container migration across multiple systems with standard image distribution infrastructure. A new option `--create-image <image>` has been added to the `podman container checkpoint` command. This option tells Podman to create a container image. This is a standard image with a single layer, tar archive, that that contains all checkpoint files. This is similar to the current approach with checkpoint `--export`/`--import`. This image can be pushed to a container registry and pulled on a different system. It can also be exported locally with `podman image save` and inspected with `podman inspect`. Inspecting the image would display additional information about the host and the versions of Podman, criu, crun/runc, kernel, etc. `podman container restore` has also been extended to support image name or ID as input. Suggested-by: Adrian Reber <areber@redhat.com> Signed-off-by: Radostin Stoyanov <radostin@redhat.com>
Diffstat (limited to 'libpod/container_api.go')
-rw-r--r--libpod/container_api.go6
1 files changed, 6 insertions, 0 deletions
diff --git a/libpod/container_api.go b/libpod/container_api.go
index 0b6139335..ebefed600 100644
--- a/libpod/container_api.go
+++ b/libpod/container_api.go
@@ -754,6 +754,9 @@ type ContainerCheckpointOptions struct {
// TargetFile tells the API to read (or write) the checkpoint image
// from (or to) the filename set in TargetFile
TargetFile string
+ // CheckpointImageID tells the API to restore the container from
+ // checkpoint image with ID set in CheckpointImageID
+ CheckpointImageID string
// Name tells the API that during restore from an exported
// checkpoint archive a new name should be used for the
// restored container
@@ -781,6 +784,9 @@ type ContainerCheckpointOptions struct {
// ImportPrevious tells the API to restore container with two
// images. One is TargetFile, the other is ImportPrevious.
ImportPrevious string
+ // CreateImage tells Podman to create an OCI image from container
+ // checkpoint in the local image store.
+ CreateImage string
// Compression tells the API which compression to use for
// the exported checkpoint archive.
Compression archive.Compression