James O. D. Hunt a9a0eccf33 tracing: Add basic VSOCK tracing ...

Implement an openTelemetry custom exporter that sends trace spans to a
VSOCK socket. A VSOCK-to-span converter (such as the Kata trace
forwarder) needs to be running on the host to allow systems like Jaeger
to capture the trace spans.

By default, tracing is not enabled (meaning a NOP tracer is used). To
activate tracing, set the `agent.kata.enable_tracing=true` in the
configuration file.

The type of tracing this change introduces is "static isolated"
tracing. See [1] for further details.

> **Note:**
>
> This change only provides the foundational changes for agent
> tracing work. The feature is _not_ yet complete since it does
> not yet show the correct trace hierarchy.

Fixes: #60.

[1] - https://github.com/kata-containers/agent/blob/master/TRACING.md

Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>

2021-06-02 18:00:05 +01:00

..

handler.rs

tracing: Add basic VSOCK tracing

2021-06-02 18:00:05 +01:00

main.rs

logging: Use guard to make threaded logging safe

2021-03-29 14:32:11 +01:00

server.rs

tracing: Make trace-forwarder async

2021-05-27 10:48:05 +01:00

tracer.rs

tracing: Make trace-forwarder async

2021-05-27 10:48:05 +01:00