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path: root/libpod/events/journal_linux.go
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* Events for containers in pods now include the pod's IDMatthew Heon2022-09-22
| | | | | | | | | | This allows tools like Cockpit to know that the pod in question has also been updated, so they can refresh the list of containers in the pod. Fixes #15408 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* event backend journald: fix problem with empty journalPaul Holzinger2022-09-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently podman events will just fail with `Error: failed to get journal cursor: failed to get cursor: cannot assign requested address` when the journal contains zero podman events. The problem is that we are using the journal accessors wrong. There is no need to call GetCursor() and compare them manually. The Next() return an integer which tells if it moved to the next or not. This means the we can remove GetCursor() which would fail when there is no entry. This also includes another bug fix. Previously the logic called Next() twice for the first entry which caused us to miss the first entry. To reproduce this issue you can run the following commands: ``` sudo journalctl --rotate sudo journalctl --vacuum-time=1s ``` Note that this will delete the full journal. Now run podman events and it fails but with this patch it works. Now generate a single event, i.e. podman pull alpine, and run podman events --until 1s. I am not sure how to get a reliable test into CI, I really do not want to delete the journal and developer or CI systems. Fixes second part of #15688 Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* fix goroutine leaks in events and logs backendPaul Holzinger2022-07-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When running a single podman logs this is not really important since we will exit when we finish reading the logs. However for the system service this is very important. Leaking goroutines will cause an increased memory and CPU ussage over time. Both the the event and log backend have goroutine leaks with both the file and journald drivers. The journald backend has the problem that journal.Wait(IndefiniteWait) will block until we get a new journald event. So when a client closes the connection the goroutine would still wait until there is a new journal entry. To fix this we just wait for a maximum of 5 seconds, after that we can check if the client connection was closed and exit correctly in this case. For the file backend we can fix this by waiting for either the log line or context cancel at the same time. Currently it would block waiting for new log lines and only check afterwards if the client closed the connection and thus hang forever if there are no new log lines. [NO NEW TESTS NEEDED] I am open to ideas how we can test memory leaks in CI. To test manually run a container like this: `podman run --log-driver $driver --name test -d alpine sh -c 'i=1; while [ "$i" -ne 1000 ]; do echo "line $i"; i=$((i + 1)); done; sleep inf'` where `$driver` can be either `journald` or `k8s-file`. Then start the podman system service and use: `curl -m 1 --output - --unix-socket $XDG_RUNTIME_DIR/podman/podman.sock -v 'http://d/containers/test/logs?follow=1&since=0&stderr=1&stdout=1' &>/dev/null` to get the logs from the API and then it closes the connection after 1 second. Now run the curl command several times and check the memory usage of the service. Fixes #14879 Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* libpod: switch to golang native error wrappingSascha Grunert2022-07-05
| | | | | | | | | We now use the golang error wrapping format specifier `%w` instead of the deprecated github.com/pkg/errors package. [NO NEW TESTS NEEDED] Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
* Merge pull request #14705 from jakecorrenti/show-health-status-eventopenshift-ci[bot]2022-06-27
|\ | | | | Show Health Status events
| * Show Health Status eventsJake Correnti2022-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously, health status events were not being generated at all. Both the API and `podman events` will generate health_status events. ``` {"status":"health_status","id":"ae498ac3aa6c63db8b69a37583a6eae1a9cefbdbdbeeadcf8e1d66d745f0df63","from":"localhost/healthcheck-demo:latest","Type":"container","Action":"health_status","Actor":{"ID":"ae498ac3aa6c63db8b69a37583a6eae1a9cefbdbdbeeadcf8e1d66d745f0df63","Attributes":{"containerExitCode":"0","image":"localhost/healthcheck-demo:latest","io.buildah.version":"1.26.1","maintainer":"NGINX Docker Maintainers \u003cdocker-maint@nginx.com\u003e","name":"healthcheck-demo"}},"scope":"local","time":1656082205,"timeNano":1656082205882271276,"HealthStatus":"healthy"} ``` ``` 2022-06-24 11:06:04.886238493 -0400 EDT container health_status ae498ac3aa6c63db8b69a37583a6eae1a9cefbdbdbeeadcf8e1d66d745f0df63 (image=localhost/healthcheck-demo:latest, name=healthcheck-demo, health_status=healthy, io.buildah.version=1.26.1, maintainer=NGINX Docker Maintainers <docker-maint@nginx.com>) ``` Signed-off-by: Jake Correnti <jcorrenti13@gmail.com>
* | fix CI: golangci-lint is broken on mainPaul Holzinger2022-06-15
| | | | | | | | | | | | | | The merge of both 528739cef3d2 and 1b62e4543845 at the same time created a lint error on main. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* | golangci-lint: add systemd build tagPaul Holzinger2022-06-14
|/ | | | | | | | | Lint the systemd code and fix the reported problems. The remoteclient tag is no longer used so I just removed it. [NO NEW TESTS NEEDED] Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* go fmt: use go 1.18 conditional-build syntaxValentin Rothberg2022-03-18
| | | | Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
* bump go module to version 4Valentin Rothberg2022-01-18
| | | | | | | | | | | | | Automated for .go files via gomove [1]: `gomove github.com/containers/podman/v3 github.com/containers/podman/v4` Remaining files via vgrep [2]: `vgrep github.com/containers/podman/v3` [1] https://github.com/KSubedi/gomove [2] https://github.com/vrothberg/vgrep Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* standardize logrus messages to upper caseDaniel J Walsh2021-09-22
| | | | | | | | Remove ERROR: Error stutter from logrus messages also. [ NO TESTS NEEDED] This is just code cleanup. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Add no-trunc support to podman-eventsDaniel J Walsh2021-09-16
| | | | | | | | | | | Standardize on no-trunc through the code. Alias notruncate where necessary. Standardize on the man page display of no-trunc. Fixes: https://github.com/containers/podman/issues/8941 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* logFile until flag issuecdoern2021-08-23
| | | | | | | | | we were adding a negative duration in podman events, causing inputs like -5s to be correct and 5s to be incorrect. fixes #11158 Signed-off-by: cdoern <cdoern@redhat.com>
* events: support disjunctive filtersValentin Rothberg2021-06-02
| | | | | | | | | While different filters are applied in conjunction, the same filter (but with different values) should be applied in disjunction. This allows, for instance, to query the events of two containers. Fixes: #10507 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* bump go module to v3Valentin Rothberg2021-02-22
| | | | | | | | | We missed bumping the go module, so let's do it now :) * Automated go code with github.com/sirkon/go-imports-rename * Manually via `vgrep podman/v2` the rest Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* close journald when readingbaude2021-01-04
| | | | | | | | | when reading from journald, we need to close the journal handler for events and logging. Fixes: #8864 Signed-off-by: baude <bbaude@redhat.com>
* podman events allow future time for --untilPaul Holzinger2020-12-11
| | | | | | | | | | | | | | | | | The podman events aren't read until the given timestamp if the timestamp is in the future. It just reads all events until now and exits afterwards. This does not make sense and does not match docker. The correct behavior is to read all events until the given time is reached. This fixes a bug where the wrong event log file path was used when running first time with a new storage location. Fixes #8694 This also fixes the events api endpoint which only exited when an error occurred. Otherwise it just hung after reading all events. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* add network connect|disconnect compat endpointsbaude2020-11-19
| | | | | | | | | | | this enables the ability to connect and disconnect a container from a given network. it is only for the compatibility layer. some code had to be refactored to avoid circular imports. additionally, tests are being deferred temporarily due to some incompatibility/bug in either docker-py or our stack. Signed-off-by: baude <bbaude@redhat.com>
* 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>
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