From 2dbb9434b0d10b086e6d5367087aa1a4cdd77be0 Mon Sep 17 00:00:00 2001
From: Florian Sesser <florian@private.storage>
Date: Wed, 8 Sep 2021 14:54:57 +0000
Subject: [PATCH] OpenMetrics endpoint WIP

---
 src/allmydata/web/status.py | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/allmydata/web/status.py b/src/allmydata/web/status.py
index 741f93061..7d3fdd06e 100644
--- a/src/allmydata/web/status.py
+++ b/src/allmydata/web/status.py
@@ -1554,6 +1554,10 @@ class Statistics(MultiFormatResource):
 
     @render_exception
     def render_OPENMETRICS(self, req):
+        req.setHeader("content-type", "application/openmetrics-text; version=1.0.0; charset=utf-8")
+        stats = self._provider.get_stats()
+        ret = u""
+
         def mangle_name(name):
             return re.sub(
                 "_(\d\d)_(\d)_percentile",
@@ -1561,15 +1565,13 @@ class Statistics(MultiFormatResource):
                 name.replace(".", "_")
             )
 
-        req.setHeader(
-            "content-type", "application/openmetrics-text; version=1.0.0; charset=utf-8"
-        )
+        for (k, v) in sorted(stats['counters'].items()):
+            ret += u"tahoe_counters_%s %s\n" % (mangle_name(k), v)
 
-        stats = self._provider.get_stats()
-        return (str({mangle_name(k): v for k, v in stats['counters'].items()})
-                + str({mangle_name(k): v for k, v in stats['stats'].items()})
-                + "\n"
-        )
+        for (k, v) in sorted(stats['stats'].items()):
+            ret += u"tahoe_stats_%s %s\n" % (mangle_name(k), v)
+
+        return ret
 
 class StatisticsElement(Element):