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feat: inject span_id as var and log context

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This commit is contained in:
Cedric Ziel 2024-06-22 13:21:12 +02:00
parent c2ccf8690f
commit e35ce3d005
1 changed files with 4 additions and 0 deletions
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4
modules/caddyhttp/tracing/tracer.go
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@ -88,11 +88,15 @@ func (ot *openTelemetryWrapper) serveHTTP(w http.ResponseWriter, r *http.Request
spanCtx := trace.SpanContextFromContext(ctx)
if spanCtx.IsValid() {
traceID := spanCtx.TraceID().String()
spanID := spanCtx.SpanID().String()
// Add a trace_id placeholder, accessible via `{http.vars.trace_id}`.
caddyhttp.SetVar(ctx, "trace_id", traceID)
// Add a span_id placeholder, accessible via `{http.vars.span_id}`.
caddyhttp.SetVar(ctx, "span_ud", spanID)
// Add the trace id to the log fields for the request.
if extra, ok := ctx.Value(caddyhttp.ExtraLogFieldsCtxKey).(*caddyhttp.ExtraLogFields); ok {
extra.Add(zap.String("traceID", traceID))
extra.Add(zap.String("spanID", spanID))
}
}
next := ctx.Value(nextCallCtxKey).(*nextCall)