After tailing a file, if the number of lines requested is > the number
of lines in the file, this would cause a json unmarshalling error to
occur when we later try to go follow the file.
So brute force set it to the end if any tailing occurred.
There is potential that there could be some missing log messages if logs
are being written very quickly, however I was not able to make this
happen even with `while true; do echo hello; done`, so this is probably
acceptable.
While testing this I also found a panic in LogWatcher.Close can be
called twice due to a race. Fix channel close to only close when there
has been no signal to the channel.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: c57faa91e2dab72a0a0905dc10e5cbdf55b545f5
Component: engine
- downcase and privatize exported variables that were unused
- make accurate an error message
- added package comments
- remove unused var ReadLogsNotSupported
- enable linter
- some spelling corrections
Signed-off-by: Morgan Bauer <mbauer@us.ibm.com>
Upstream-commit: ccbe539e86dfbb8749c09763ddfd73bf10ac57cc
Component: engine
I think it was original intention, because even half of a comment was about
MaxInt32.
Fix#15038
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Upstream-commit: eb45602d2fa0fac8a694d2afb1c59ef60b0e1f77
Component: engine
There is no option validation for "journald" log-driver, so it makes no
sense to fail in that case.
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Upstream-commit: d68c55bc72625bce226971ef6e760530e9a15ce3
Component: engine
Implement new reader interface on jsonfile.
Moves jsonlog decoding from daemon to jsonfile logger.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: c0391bf5545afef5e675138556c39e4c0e9bf91b
Component: engine
allows to send container logs to Graylog or Logstash.
Signed-off-by: Marius Sturm <marius@graylog.com>
Upstream-commit: 96d06e106fb9e35e5a526054d3aa0152152a9cc4
Component: engine
When using a scanner, log lines over 64K will crash the Copier with
bufio.ErrTooLong. Subsequently, the ioutils.bufReader will grow without
bound as the logs are no longer being flushed to disk.
Signed-off-by: Burke Libbey <burke.libbey@shopify.com>
Upstream-commit: f779cfc5d8b8f0686c3849a3bd4ab0480675180d
Component: engine
- noplog driver pkg for '--log-driver=none' (null object pattern)
- centralized factory for log drivers (instead of case/switch)
- logging drivers registers themselves to factory upon import
(easy plug/unplug of drivers in daemon/logdrivers.go)
- daemon now doesn't start with an invalid log driver
- Name() method of loggers is actually now their cli names (made it useful)
- generalized Read() logic, made it unsupported except json-file (preserves
existing behavior)
Spotted some duplication code around processing of legacy json-file
format, didn't touch that and refactored in both places.
Signed-off-by: Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>
Upstream-commit: 3a8728b431df07249ad913ea9a12e27dc39b8956
Component: engine
This patch modifies the journald log driver to store the container ID in
a field named CONTAINER_ID, rather than (ab)using the MESSAGE_ID field.
Additionally, this adds the CONTAINER_ID_FULL field containing the
complete container ID and CONTAINER_NAME, containing the container name.
When using the journald log driver, this permits you to see log messages
from a particular container like this:
# journalctl CONTAINER_ID=a9238443e193
Example output from "journalctl -o verbose" includes the following:
CONTAINER_ID=27aae7361e67
CONTAINER_ID_FULL=27aae7361e67e2b4d3864280acd2b80e78daf8ec73786d8b68f3afeeaabbd4c4
CONTAINER_NAME=web
Closes: #12864
Signed-off-by: Lars Kellogg-Stedman <lars@redhat.com>
Upstream-commit: 869ecba652294e069874c83591d6f1b469d7cc32
Component: engine
This patch changes two things
1. Set facility to LOG_DAEMON
2. Remove ": " from tag so that the tag + pid become a single column in
the log
Signed-off-by: Darren Shepherd <darren@rancher.com>
Upstream-commit: 05641ccffc5088a382fa3bfb21f1276ccb6c1fc0
Component: engine
Also there is aux datastructure Copier which can copy lines from streams
to Loggers
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Upstream-commit: 14887e2e1f8d11f30ab8c25beed0ff9e70354005
Component: engine
