Tracing Protocols
By design, Tempo can ingest common open source tracing protocols. These protocols include:
"zipkin""otlp_grpc""otlp_http""jaeger_thrift_http"
For a full list of receivers supported by upstream Tempo, see protocols.
Send traces with desired protocols
When integrating your charmed application with tempo-k8s to send the traces to Tempo (e.g: integrating over tracing), you can specify, as a list, the tracing protocols you want to send traces with like the example below:
from charms.tempo_k8s.v2.tracing import TracingEndpointRequirer
class FooCharm:
def __init__(self, *args):
super().__init__(*args, **kwargs)
...
self.tracing = TracingEndpointRequirer(self,
protocols=["otlp_http", "otlp_grpc", "jaeger_thrift_http"])
...
The provider will enable receivers for these and only these protocols, so be sure to enable all protocols the charm or its workload are going to need.
However, in charm library charms.tempo_k8s.v1.charm_tracing, which is used to instrument the charm, the traces need to be sent with otlp_http protocol.