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ipx-directory traces, and ipx's trace follows its calls there (#213)

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The exporter setup and the traceparent parser move from ipx into ipx_directory::otel, which ipx
already depends on, so both binaries share them. The directory makes a span a request, a child of
the caller's traceparent, and a trace a refresher round with a span a feed; ipx sends the current
span's traceparent on every call to the directory and wraps each share in a span. The dashboard's
Traces row and the prod-check skill cover all three services.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Ray Slakinski
2026-10-12 16:19:32 +00:00
parent a3708769a4
commit 44e75df99e
12 changed files with 188 additions and 94 deletions
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17
crates/directory/src/main.rs
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@@ -75,11 +75,16 @@ async fn main() -> Result<()> {
async fn serve(path: &std::path::Path) -> Result<()> {
// One JSON object a line for Loki when DIRECTORY_LOG_FORMAT=json, as ipx does; text otherwise.
let json = std::env::var("DIRECTORY_LOG_FORMAT").is_ok_and(|f| f.eq_ignore_ascii_case("json"));
let filter = tracing_subscriber::EnvFilter::try_from_env("DIRECTORY_LOG").unwrap_or_else(|_| "ipx_directory=info".into());
let filter = || tracing_subscriber::EnvFilter::try_from_env("DIRECTORY_LOG").unwrap_or_else(|_| "ipx_directory=info".into());
// Traces to Tempo when OTEL_EXPORTER_OTLP_ENDPOINT is set, joining ipx's (#213).
let otel = ipx_directory::otel::provider("ipx-directory")?;
tracing_subscriber::registry()
.with(filter)
.with((!json).then(|| tracing_subscriber::fmt::layer().with_writer(std::io::stderr)))
.with(json.then(|| tracing_subscriber::fmt::layer().json().flatten_event(true).with_writer(std::io::stderr)))
.with((!json).then(|| tracing_subscriber::fmt::layer().with_writer(std::io::stderr).with_filter(filter())))
.with(json.then(|| tracing_subscriber::fmt::layer().json().flatten_event(true).with_writer(std::io::stderr).with_filter(filter())))
.with(otel.as_ref().map(|p| {
use opentelemetry::trace::TracerProvider;
tracing_opentelemetry::layer().with_tracer(p.tracer("ipx-directory")).with_filter(tracing_subscriber::EnvFilter::new("ipx_directory=info"))
}))
.init();
let cfg = config::Config::load(path)?;
@@ -105,5 +110,9 @@ async fn serve(path: &std::path::Path) -> Result<()> {
}
})
.await?;
// The batch exporter holds the last few seconds of spans; without this they are lost.
if let Some(p) = otel {
let _ = p.shutdown();
}
Ok(())
}