migration: add possibility to restore a container with a new name

The option to restore a container from an external checkpoint archive
(podman container restore -i /tmp/checkpoint.tar.gz) restores a
container with the same name and same ID as id had before checkpointing.

This commit adds the option '--name,-n' to 'podman container restore'.
With this option the restored container gets the name specified after
'--name,-n' and a new ID. This way it is possible to restore one
container multiple times.

If a container is restored with a new name Podman will not try to
request the same IP address for the container as it had during
checkpointing. This implicitly assumes that if a container is restored
from a checkpoint archive with a different name, that it will be
restored multiple times and restoring a container multiple times with
the same IP address will fail as each IP address can only be used once.

Signed-off-by: Adrian Reber <areber@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/completions/bash/podman b/completions/bash/podman
index 4972188aa..efb8a6a9b 100644
--- a/completions/bash/podman
+++ b/completions/bash/podman
@@ -857,6 +857,8 @@ _podman_container_restore() {
      local options_with_args="
      -i
      --import
+     -n
+     --name
      "
      local boolean_options="
 	  -a