garage/src/admin/tracing_setup.rs

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use std::time::Duration;
use opentelemetry::sdk::{
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trace::{self, IdGenerator, Sampler},
Resource,
};
use opentelemetry::KeyValue;
use opentelemetry_otlp::WithExportConfig;
use garage_util::data::*;
use garage_util::error::*;
pub fn init_tracing(export_to: &str, node_id: Uuid) -> Result<(), Error> {
let node_id = hex::encode(&node_id.as_slice()[..8]);
opentelemetry_otlp::new_pipeline()
.tracing()
.with_exporter(
opentelemetry_otlp::new_exporter()
.tonic()
.with_endpoint(export_to)
.with_timeout(Duration::from_secs(3)),
)
.with_trace_config(
trace::config()
.with_id_generator(IdGenerator::default())
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.with_sampler(Sampler::AlwaysOn)
.with_resource(Resource::new(vec![
KeyValue::new("service.name", "garage"),
KeyValue::new("service.instance.id", node_id),
])),
)
.install_batch(opentelemetry::runtime::Tokio)
.ok_or_message("Unable to initialize tracing")?;
Ok(())
}