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path: root/libpod/events/journal_linux.go
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* Improve the journal event readingPaul Holzinger2020-10-27
| | | | | | | | | | | Fix the AddMatch/SeekTail conflict. This prevents reading unnecessary journal entries which could cause errors. Also wrap the sdjournal errors to provide better error messages. Fixes #8125 Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* filter events by labelsbaude2020-10-23
| | | | | | adding the ability to filter evens by the container labels. this requires that container labels be added to the events data being recorded and subsequently read. Signed-off-by: baude <bbaude@redhat.com>
* Remove some unnecessary []byte to string conversionsSascha Grunert2020-08-03
| | | | | | | Some calls to `Sprintf("%s")` can be avoided by using direct string type assertions. Signed-off-by: Sascha Grunert <sgrunert@suse.com>
* events endpoint: fix panic and race conditionValentin Rothberg2020-07-20
| | | | | | | | | | | | | | | | | | | | | Fix a potential panic in the events endpoint when parsing the filters parameter. Values of the filters map might be empty, so we need to account for that instead of uncondtitionally accessing the first item. Also apply a similar for race conditions as done in commit f4a2d25c0fca: Fix a race that could cause read errors to be masked. Masking such errors is likely to report red herrings since users don't see that reading failed for some reasons but that a given event could not be found. Another race was the handler closing event channel, which could lead to two kinds of panics: double close, send to close channel. The backend takes care of that. However, make sure that the backend stops working in case the context has been cancelled. Fixes: #6899 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Fix `system service` panic from early hangup in eventsMatthew Heon2020-07-02
| | | | | | | | | | | | We weren't actually halting the goroutine that sent events, so it would continue sending even when the channel closed (the most notable cause being early hangup - e.g. Control-c on a curl session). Use a context to cancel the events goroutine and stop sending events. Fixes #6805 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* update systemd & dbus dependenciesValentin Rothberg2020-03-10
| | | | | | | | Update the outdated systemd and dbus dependencies which are now provided as go modules. This will further tighten our dependencies and releases and pave the way for the upcoming auto-update feature. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* events: make sure the write channel is always closedGiuseppe Scrivano2019-11-06
| | | | | | | | | in case of errors, the channel is not closed, blocking the reader indefinitely. Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1767663 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* performance fix for podman events with large journaldsbaude2019-08-14
| | | | | | | | | in the case where the host has a large journald, iterating the journal without using a Match is very poor performance. this might be a temporary fix while we figure out why the systemd library does not seem to behave properly. Signed-off-by: baude <bbaude@redhat.com>
* Small optimization - only store exit code when nonzeroMatthew Heon2019-08-12
| | | | | | | JSON optimizes it out in that case anyways, so don't waste cycles doing an Itoa (and Atoi on the decode side). Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Fix container exit code with Journald backendMatthew Heon2019-08-12
| | | | | | | | | | We weren't actually storing this, so we'd lose the exit code for containers run with --rm or force-removed while running if the journald backend for events was in use. Fixes #3795 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* systemd library conflict with seektail and addmatchbaude2019-08-06
| | | | | | | | | 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>
* add eventlogger to infobaude2019-08-02
| | | | | | | to help with future debugging, we now display the type of event logger being used inside podman info -> host. Signed-off-by: baude <bbaude@redhat.com>
* get last container eventbaude2019-07-07
| | | | | | | | an internal change in libpod will soon required the ability to lookup the last container event using the continer name or id and the type of event. this pr is in preperation for that need. Signed-off-by: baude <bbaude@redhat.com>
* set default event logger based on build tagsbaude2019-05-14
| | | | | | | once the default event logger was removed from libpod.conf, we need to set the default based on whether the systemd build tag is used or not. Signed-off-by: baude <bbaude@redhat.com>
* Add `systemd` build tagSascha Grunert2019-05-13
| | | | | | | | | | | | If the systemd development files are not present on the system which builds podman, then `podman events` will error on runtime creation. Beside this, a warning will be printed when compiling podman. This commit mainly exists because projects which depend on libpod would not need the podman event support and therefore do not need to rely on the systemd headers. Signed-off-by: Sascha Grunert <sgrunert@suse.com>
* Do not hard fail on non-decodable eventsMatthew Heon2019-04-26
| | | | Signed-off-by: Matthew Heon <mheon@redhat.com>
* journald event loggingbaude2019-04-24
add the ability for podman to read and write events to journald instead of just a logfile. This can be controlled in libpod.conf with the `events_logger` attribute of `journald` or `file`. The default will be set to `journald`. Signed-off-by: baude <bbaude@redhat.com>