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| author | Valentin Rothberg <rothberg@redhat.com> | 2020-07-06 11:14:33 +0200 |
|---|---|---|
| committer | Valentin Rothberg <rothberg@redhat.com> | 2020-07-06 11:14:33 +0200 |
| commit | 0ef5def0beb7f7e5f12db7c9fba1d1b7bb45ce73 (patch) | |
| tree | 9480de5ebecb65ac8a0caee3f5373348ab7b7044 | |
| parent | 41ccc045fb492e79d8b6c1bf2dba97b0fa912afa (diff) | |
| download | podman-0ef5def0beb7f7e5f12db7c9fba1d1b7bb45ce73.tar.gz podman-0ef5def0beb7f7e5f12db7c9fba1d1b7bb45ce73.tar.bz2 podman-0ef5def0beb7f7e5f12db7c9fba1d1b7bb45ce73.zip | |
auto-update: clarify systemd-unit requirements
Clarify in the help message and the man page that auto updates only work
with systemd units that are similar to the ones from `generate systemd
--new`. Units that merely start/stop a container do not work as they
will use the same image.
Fixes: #6793
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
| -rw-r--r-- | cmd/podman/auto-update.go | 2 | ||||
| -rw-r--r-- | docs/source/markdown/podman-auto-update.1.md | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/cmd/podman/auto-update.go b/cmd/podman/auto-update.go index 11433bc25..eed211ff1 100644 --- a/cmd/podman/auto-update.go +++ b/cmd/podman/auto-update.go @@ -16,6 +16,8 @@ var ( autoUpdateDescription = `Auto update containers according to their auto-update policy. Auto-update policies are specified with the "io.containers.autoupdate" label. + Containers are expected to run in systemd units created with "podman-generate-systemd --new", + or similar units that create new containers in order to run the updated images. Note that this command is experimental. Please refer to the podman-auto-update(1) man page for details.` autoUpdateCommand = &cobra.Command{ Use: "auto-update [flags]", diff --git a/docs/source/markdown/podman-auto-update.1.md b/docs/source/markdown/podman-auto-update.1.md index f37280cda..b6941362a 100644 --- a/docs/source/markdown/podman-auto-update.1.md +++ b/docs/source/markdown/podman-auto-update.1.md @@ -23,6 +23,9 @@ Note that `podman auto-update` relies on systemd and requires a fully-qualified This enforcement is necessary to know which image to actually check and pull. If an image ID was used, Podman would not know which image to check/pull anymore. +Moreover, the systemd units are expected to be generated with `podman-generate-systemd --new`, or similar units that create new containers in order to run the updated images. +Systemd units that start and stop a container cannot run a new image. + ## OPTIONS **--authfile**=*path* |