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| author | Valentin Rothberg <rothberg@redhat.com> | 2021-07-28 15:19:04 +0200 |
|---|---|---|
| committer | Valentin Rothberg <rothberg@redhat.com> | 2021-08-05 15:20:38 +0200 |
| commit | 30df551bde460f4f37d6dbd373701873fa5353dc (patch) | |
| tree | a1a48d3b25706006ac391ac271ed21c3a6191c8f /cmd/podman/auto-update.go | |
| parent | 117583c293713f2baa920c4035e820ad59fe6622 (diff) | |
| download | podman-30df551bde460f4f37d6dbd373701873fa5353dc.tar.gz podman-30df551bde460f4f37d6dbd373701873fa5353dc.tar.bz2 podman-30df551bde460f4f37d6dbd373701873fa5353dc.zip | |
auto-update: simple rollback
Add support for simple rollbacks during `podman auto-update`. Rollbacks
are enabled by default. If a systemd unit cannot be restarted after an
update, the previous image will be retagged and the unit will be
restarted a second time.
Add system tests for rollbacks. Also fix a bug in the restart sequence;
we have to use the channel to actually know whether the restart was
successful or not.
NOTE: To make rollbacks really useful, users must run their containers
with `--sdnotify=container` such that the containers send the ready
message over the (mounted) socket. This way, restarting the systemd
units during auto update will block until the message has been received
(or a timeout kicked in).
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'cmd/podman/auto-update.go')
| -rw-r--r-- | cmd/podman/auto-update.go | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/cmd/podman/auto-update.go b/cmd/podman/auto-update.go index 9622088d5..8364181d2 100644 --- a/cmd/podman/auto-update.go +++ b/cmd/podman/auto-update.go @@ -54,6 +54,7 @@ func init() { _ = autoUpdateCommand.RegisterFlagCompletionFunc(authfileFlagName, completion.AutocompleteDefault) flags.BoolVar(&autoUpdateOptions.DryRun, "dry-run", false, "Check for pending updates") + flags.BoolVar(&autoUpdateOptions.Rollback, "rollback", true, "Rollback to previous image if update fails") flags.StringVar(&autoUpdateOptions.format, "format", "", "Change the output format to JSON or a Go template") _ = autoUpdateCommand.RegisterFlagCompletionFunc("format", common.AutocompleteFormat(autoUpdateOutput{})) |