snapshot of https://github.com/jitsi/jitsi-meet.git @ fd1749dd28f4138aa80234fc7f311b19aaffa0e7 (2026-09-15)

resources/prosody-plugins/mod_trace.lua

@@ -0,0 +1,46 @@
+local otel = module:require "otel"
+local http = require "net.http"
+
+local otlp_endpoint = module:get_option("otlp_endpoint")
+
+if not otlp_endpoint then
+    module:log("warn", "module disabled: otlp_endpoint unset")
+    return
+end
+
+local exporter = otel.Exporter.new(http.request, otlp_endpoint)
+local processor = otel.Processor.new(exporter)
+local tracer = otel.Tracer.new(processor, "prosody", "muc")
+
+local function find_tag(tags, name)
+    for _, tag in ipairs(tags) do
+        if tag.name == name then
+            return tag
+        end
+    end
+    return nil
+end
+
+module:hook("iq/full", function(event)
+    local iq_element = event.stanza.tags[1]
+    if not iq_element then
+        return
+    end
+
+    if iq_element.name ~= "conference-modify" or iq_element.attr.xmlns ~= "jitsi:colibri2" then
+        return
+    end
+
+    local traceparent = find_tag(iq_element.tags, "traceparent")
+    if not traceparent then
+        return
+    end
+
+    local span = tracer:start_span("colibri.conference-modify", {
+        trace_id = traceparent.attr.trace_id,
+        span_id = traceparent.attr.parent_id,
+    })
+    span:end_span()
+
+    traceparent.attr.parent_id = span.span_id
+end, 1)