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systemd library conflict with seektail and addmatch

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it looks like the core-os systemd library has some issue when using
seektail and add match.  this patch works around that shortcoming for
the time being.

Fixes: #3616
Signed-off-by: baude <bbaude@redhat.com>
This commit is contained in:
baude
2019-08-06 14:53:50 -05:00
parent b5618d9e35
commit 62a04f2b03
1 changed files with 14 additions and 5 deletions
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19
libpod/events/journal_linux.go
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@ -54,14 +54,17 @@ func (e EventJournalD) Read(options ReadOptions) error {
if err != nil {
return errors.Wrapf(err, "failed to generate event options")
}
podmanJournal := sdjournal.Match{Field: "SYSLOG_IDENTIFIER", Value: "podman"} //nolint
j, err := sdjournal.NewJournal() //nolint
j, err := sdjournal.NewJournal() //nolint
if err != nil {
return err
}
if err := j.AddMatch(podmanJournal.String()); err != nil {
return errors.Wrap(err, "failed to add filter for event log")
}
// TODO AddMatch and Seek seem to conflict
// Issue filed upstream -> https://github.com/coreos/go-systemd/issues/315
// Leaving commented code in case upstream fixes things
//podmanJournal := sdjournal.Match{Field: "SYSLOG_IDENTIFIER", Value: "podman"} //nolint
//if err := j.AddMatch(podmanJournal.String()); err != nil {
// return errors.Wrap(err, "failed to add filter for event log")
//}
if len(options.Since) == 0 && len(options.Until) == 0 && options.Stream {
if err := j.SeekTail(); err != nil {
return errors.Wrap(err, "failed to seek end of journal")
@ -96,6 +99,12 @@ func (e EventJournalD) Read(options ReadOptions) error {
if err != nil {
return err
}
// TODO this keeps us from feeding the podman event parser with
// with regular journal content; it can be removed if the above
// problem with AddMatch is resolved.
if entry.Fields["PODMAN_EVENT"] == "" {
continue
}
newEvent, err := newEventFromJournalEntry(entry)
if err != nil {
// We can't decode this event.