When reading log entries from the journal, don't skip past the first
matching entry after we've positioned the cursor at it.
Make the first blank-line entry that we logged so that the container
would always have at least one log entry for us to find (until it gets
vacuumed out, at least) a fake history entry, so that `logs` doesn't
pass it on for display.
CI already has tests that exercise journal-based logging, so
[NO TESTS NEEDED]
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
For docker compat include information about available volume, log and
network drivers which should be listed under the plugins key.
Fixes#11265
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
compat containers/logs was missing actual usage of until query param.
This led me to implement the until param for libpod's container logs as well. Added e2e tests.
Signed-off-by: cdoern <cdoern@redhat.com>
Fix a race in journald driver. Following the logs implies streaming
until the container is dead. Streaming happened in one goroutine,
waiting for the container to exit/die and signaling that event happened
in another goroutine.
The nature of having two goroutines running simultaneously is pretty
much the core of the race condition. When the streaming goroutines
received the signal that the container has exitted, the routine may not
have read and written all of the container's logs.
Fix this race by reading both, the logs and the events, of the container
and stop streaming when the died/exited event has been read. The died
event is guaranteed to be after all logs in the journal which guarantees
not only consistencty but also a deterministic behavior.
Note that the journald log driver now requires the journald event
backend to be set.
Fixes: #10323
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
The initial version of libimage changed the order of layers which has
now been restored to remain backwards compatible.
Further changes:
* Fix a bug in the journald logging which requires to strip trailing
new lines from the message. The system tests did not pass due to
empty new lines. Triggered by changing the default logger to
journald in containers/common.
* Fix another bug in the journald logging which embedded the container
ID inside the message rather than the specifid field. That surfaced
in a preceeding whitespace of each log line which broke the system
tests.
* Alter the system tests to make sure that the k8s-file and the
journald logging drivers are executed.
* A number of e2e tests have been changed to force the k8s-file driver
to make them pass when running inside a root container.
* Increase the timeout in a kill test which seems to take longer now.
Reasons are unknown. Tests passed earlier and no signal-related
changes happend. It may be CI VM flake since some system tests but
other flaked.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Some log tests were duplicated, and some didn't need to be repeated for
every driver. Also, added some comments
Signed-off-by: Ashley Cui <acui@redhat.com>
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>
A podman could not read logs written to journald properly, due to a tail config bug.
Added a system test to check this - since e2e tests don't like journald
Signed-off-by: Ashley Cui <acui@redhat.com>
Add a `context.Context` to the log APIs to allow for cancelling
streaming (e.g., via `podman logs -f`). This fixes issues for
the remote API where some go routines of the server will continue
writing and produce nothing but heat and waste CPU cycles.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
With the advent of Podman 2.0.0 we crossed the magical barrier of go
modules. While we were able to continue importing all packages inside
of the project, the project could not be vendored anymore from the
outside.
Move the go module to new major version and change all imports to
`github.com/containers/libpod/v2`. The renaming of the imports
was done via `gomove` [1].
[1] https://github.com/KSubedi/gomove
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
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>
change the default to -1, so that we can change the semantic of
"--tail 0" to not print any existing log line.
Closes: https://github.com/containers/libpod/issues/4396
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Add a journald reader that translates the journald entry to a k8s-file formatted line, to be added as a log line
Note: --follow with journald hasn't been implemented. It's going to be a larger undertaking that can wait.
Signed-off-by: Peter Hunt <pehunt@redhat.com>
