[lttng-dev] LTTng and containers.

[Michael Jeanson]

On 2022-10-10 17:12, Maksim Khmelevskiy via lttng-dev wrote:
> Hi,
> 
> I would like to ask regarding the hot topic - container tracing. I've seen a 
> youtube video <https://www.youtube.com/watch?v=hra-eu6EOpY>, have read a 
> message <https://lists.lttng.org/pipermail/lttng-dev/2021-May/029952.html> 
> from LTTng mailing list and tried to google more about this topic but didn't 
> find much of info. Could you please direct me where should I continue digging?
> My problem:
> I would like to have multiple containers where traces are generated by apps 
> with compiled-in tracepoints. Traces could be stored in these containers as well.
> Besides these containers I would have a trace processor container, a master 
> container which could address a container(or a trace session) and fetch traces 
> from it and read with babeltrace or similar tool.
> So far, intuitively, remote tracing comes to my mind but before continuing 
> with the task I would be happy to hear an advice from LTTng devs.
> 
> Thank you!

Hi,

You can either use lttng-relayd to send the traces over the network to your 
trace processor container, or just trace to disk on shared diectories. You 
should have a look at trace rotation, https://doc.lttng.org is probably the 
best place to start.

Michael