This was using `errors.Wrap` when there was no error to wrap, meanwhile
we are supposed to be creating a new error.
Found this while investigating some log corruption issues and
unexpectedly getting a nil reader and a nil error from `getTailReader`.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
If a reader has caught up to the logger and is waiting for the next
message, it should stop waiting when the logger is closed. Otherwise
the reader will unnecessarily wait the full closedDrainTimeout for no
log messages to arrive.
This case was overlooked when the journald reader was recently
overhauled to be compatible with systemd 255, and the reader tests only
failed when a logical race happened to settle in such a way to exercise
the bugged code path. It was only after implicit flushing on close was
added to the journald test harness that the Follow tests would
repeatably fail due to this bug. (No new regression tests are needed.)
Signed-off-by: Cory Snider <csnider@mirantis.com>
The journald reader test harness injects an artificial asynchronous
delay into the logging pipeline: a logged message won't be written to
the journal until at least 150ms after the Log() call returns. If a test
returns while log messages are still in flight to be written, the logs
may attempt to be written after the TempDir has been cleaned up, leading
to spurious errors.
The logger read tests which interleave writing and reading have to
include explicit synchronization points to work reliably with this delay
in place. On the other hand, tests should not be required to sync the
logger explicitly before returning. Override the Close() method in the
test harness wrapper to wait for in-flight logs to be flushed to disk.
Signed-off-by: Cory Snider <csnider@mirantis.com>
- Check the return value when logging messages
- Log the stream (stdout/stderr) and list of messages that were not read
- Wait until the logger is closed before returning early (panic/fatal)
Signed-off-by: Cory Snider <csnider@mirantis.com>
Writing the systemd-journal-remote command output directly to os.Stdout
and os.Stderr makes it nearly impossible to tell which test case the
output is related to when the tests are not run in verbose mode. Extend
the journald sender fake to redirect output to the test log so they
interleave with the rest of the test output.
Signed-off-by: Cory Snider <csnider@mirantis.com>
The Go race detector was detecting a data race when running the
TestLogRead/Follow/Concurrent test against the journald logging driver.
The race was in the test harness, specifically syncLogger. The waitOn
field would be reassigned each time a log entry is sent to the journal,
which is not concurrency-safe. Make it concurrency-safe using the same
patterns that are used in the log follower implementation to synchronize
with the logger.
Signed-off-by: Cory Snider <csnider@mirantis.com>
errDrainDone is a sentinel error which is never supposed to escape the
package. Consequently, it needs to be filtered out of returns all over
the place, adding boilerplate. Forgetting to filter out these errors
would be a logic bug which the compiler would not help us catch. Replace
it with boolean multi-valued returns as they can't be accidentally
ignored or propagated.
Signed-off-by: Cory Snider <csnider@mirantis.com>
While it doesn't really matter if the reader waits for an extra
arbitrary period beyond an arbitrary hardcoded timeout, it's also
trivial and cheap to implement, and nice to have.
Signed-off-by: Cory Snider <csnider@mirantis.com>
The journald reader uses a timer to set an upper bound on how long to
wait for the final log message of a stopped container. However, the
timer channel is only received from in non-blocking select statements!
There isn't enough benefit of using a timer to offset the cost of having
to manage the timer resource. Setting a deadline and comparing the
current time is just as effective, without having to manage the
lifecycle of any runtime resources.
Signed-off-by: Cory Snider <csnider@mirantis.com>
Synthesize a boot ID for journal entries fed into
systemd-journal-remote, as required by systemd 255.
Signed-off-by: Cory Snider <csnider@mirantis.com>
Following logs with a non-negative tail when the container log is empty
is broken on the journald driver when used with systemd 255. Add tests
which cover this edge case to our loggertest suite.
Signed-off-by: Cory Snider <csnider@mirantis.com>
The Logentries service will be discontinued next week:
> Dear Logentries user,
>
> We have identified you as the owner of, or collaborator of, a Logentries account.
>
> The Logentries service will be discontinued on November 15th, 2022. This means that your Logentries account access will be removed and all your log data will be permanently deleted on this date.
>
> Next Steps
> If you are interested in an alternative Rapid7 log management solution, InsightOps will be available for purchase through December 16th, 2022. Please note, there is no support to migrate your existing Logentries account to InsightOps.
>
> Thank you for being a valued user of Logentries.
>
> Thank you,
> Rapid7 Customer Success
There is no reason to preserve this code in Moby as a result.
Signed-off-by: Bjorn Neergaard <bneergaard@mirantis.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
When reading logs, timestamps should always be presented in UTC. Unlike
the "json-file" and other logging drivers, the "local" logging driver
was using local time.
Thanks to Roman Valov for reporting this issue, and locating the bug.
Before this change:
echo $TZ
Europe/Amsterdam
docker run -d --log-driver=local nginx:alpine
fc166c6b2c35c871a13247dddd95de94f5796459e2130553eee91cac82766af3
docker logs --timestamps fc166c6b2c35c871a13247dddd95de94f5796459e2130553eee91cac82766af3
2023-12-08T18:16:56.291023422+01:00 /docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
2023-12-08T18:16:56.291056463+01:00 /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
2023-12-08T18:16:56.291890130+01:00 /docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
...
With this patch:
echo $TZ
Europe/Amsterdam
docker run -d --log-driver=local nginx:alpine
14e780cce4c827ce7861d7bc3ccf28b21f6e460b9bfde5cd39effaa73a42b4d5
docker logs --timestamps 14e780cce4c827ce7861d7bc3ccf28b21f6e460b9bfde5cd39effaa73a42b4d5
2023-12-08T17:18:46.635967625Z /docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration
2023-12-08T17:18:46.635989792Z /docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/
2023-12-08T17:18:46.636897417Z /docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh
...
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The github.com/containerd/containerd/log package was moved to a separate
module, which will also be used by upcoming (patch) releases of containerd.
This patch moves our own uses of the package to use the new module.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This reverts commit a9fa147a92.
The commit is unfortunately broken as it is still using `providerHandle`
to write events but that handle is never actually set, so it is always
invalid. All logging fails.
Note: This is note a straight revert due to the change to
containerd/log.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Previously, the AWSLogs driver attempted to implement
non-blocking itself. Non-blocking is supposed to
implemented solely by the Docker RingBuffer that
wraps the log driver.
Please see issue and explanation here:
https://github.com/moby/moby/issues/45217
Signed-off-by: Wesley Pettit <wppttt@amazon.com>
This function was added in b86e3bee5a to
work around an issue in os/user.Current(), which SEGFAULTS when compiling
statically with cgo enabled (see golang/go#13470).
We hit similar issues in other parts, and contributed a "osusergo" build-
tag in https://go-review.googlesource.com/c/go/+/330753. The "osusergo"
build tag must be set when compiling static binaries with cgo enabled.
If that build-tag is set, the cgo implementation for user.Current() won't
be used, and a pure-go implementation is used instead;
https://github.com/golang/go/blob/go1.19.4/src/os/user/cgo_lookup_unix.go#L5
With the above in place, we no longer need this workaround, and can remove
the ensureHomeIfIAmStatic() function.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Before this change, the awslogs collectBatch and processEvent
function documentation still referenced the batchPublishFrequency
constant which was removed in favor of the configurable log stream
forceFlushInterval member.
Signed-off-by: Austin Vazquez <macedonv@amazon.com>
Managed containerd processes are executed with SysProcAttr.Pdeathsig set
to syscall.SIGKILL so that the managed containerd is automatically
killed along with the daemon. At least, that is the intention. In
practice, the signal is sent to the process when the creating _OS
thread_ dies! If a goroutine exits while locked to an OS thread, the Go
runtime will terminate the thread. If that thread happens to be the
same thread which the subprocess was started from, the subprocess will
be signaled. Prevent the journald driver from sometimes unintentionally
killing child processes by ensuring that all runtime.LockOSThread()
calls are paired with runtime.UnlockOSThread().
Signed-off-by: Cory Snider <csnider@mirantis.com>
daemon/logger/loggertest/logreader.go:58:43: empty-lines: extra empty line at the end of a block (revive)
daemon/logger/ring_test.go:119:34: empty-lines: extra empty line at the end of a block (revive)
daemon/logger/adapter_test.go:37:12: empty-lines: extra empty line at the end of a block (revive)
daemon/logger/adapter_test.go:41:44: empty-lines: extra empty line at the end of a block (revive)
daemon/logger/adapter_test.go:170:9: empty-lines: extra empty line at the end of a block (revive)
daemon/logger/loggerutils/sharedtemp_test.go:152:43: empty-lines: extra empty line at the end of a block (revive)
daemon/logger/loggerutils/sharedtemp.go:124:117: empty-lines: extra empty line at the end of a block (revive)
daemon/logger/syslog/syslog.go:249:87: empty-lines: extra empty line at the end of a block (revive)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Remove the "deadcode", "structcheck", and "varcheck" linters, as they are
deprecated:
WARN [runner] The linter 'deadcode' is deprecated (since v1.49.0) due to: The owner seems to have abandoned the linter. Replaced by unused.
WARN [runner] The linter 'structcheck' is deprecated (since v1.49.0) due to: The owner seems to have abandoned the linter. Replaced by unused.
WARN [runner] The linter 'varcheck' is deprecated (since v1.49.0) due to: The owner seems to have abandoned the linter. Replaced by unused.
WARN [linters context] structcheck is disabled because of generics. You can track the evolution of the generics support by following the https://github.com/golangci/golangci-lint/issues/2649.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Make sure we use the same alias everywhere for easier finding,
and to prevent accidentally introducing duplicate imports with
different aliases for the same package.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
