If an error fires when writing to the cloud stream, it can stop any
calling processes from completing. Given that a logging failure should
not cause other processes to cancel, we catch and report the error but
otherwise do nothing else.
Change-type: patch
Signed-off-by: Cameron Diver <cameron@balena.io>
Also use the supervisor's own container logging monitoring code when
running livepush on the supervisor container.
Change-type: minor
Signed-off-by: Cameron Diver <cameron@balena.io>
Changes are collected together and exist in memory, for querying and
saving. Once every 10 mins, every changed timestamp is flushed to the
database.
Change-type: patch
Closes: #987
Signed-off-by: Cameron Diver <cameron@balena.io>
This is a massive commit, but nothing related to runtime has actually
changed, only the lint errors have changed.
Change-type: patch
Signed-off-by: Cameron Diver <cameron@balena.io>
Changes in the node engine related to streams would cause the gzip
streams flush function to be called at the wrong times. The sinon fake
timers were also interacting with this.
We use setImmediate to call the flush function, and remove sinon timers
for the logging tests.
Change-type: patch
Signed-off-by: Cameron Diver <cameron@balena.io>
This had a bug where it was using the `in` operator on a list. It may
have worked for some cases, but would have failed for others.
Change-type: patch
Signed-off-by: Cameron Diver <cameron@balena.io>
We add a database table, which holds information about the last
timestamp of a log successfully reported to a backend (local or remote).
We then use this value to calculate from which point in time to start
reporting logs from the container. If this is the first time we've seen
a container, we get all logs, and for every log reported we save the
timestamp. If it is not the first time we've seen a container, we
request all logs since the last reported time, ensuring no interruption
of service.
Change-type: minor
Closes: #937
Signed-off-by: Cameron Diver <cameron@balena.io>
Container logging is now handled by a class which attaches and emits
information from the container. We add these to the directory
logging-backends/, and rename it to logging/.
Change-type: minor
Signed-off-by: Cameron Diver <cameron@balena.io>
