pybind/mgr: add slash to prometheus illegal metric name characters

(replace with underscore)

While here, change the sequence of replaces to a single regex, as it
becomes too long.

Signed-off-by: Mykola Golub <mgolub@suse.com>
(cherry picked from commit 425c5358fed9376939cff8a922c3ce1186d6b9e2)

diff --git a/src/pybind/mgr/prometheus/module.py b/src/pybind/mgr/prometheus/module.py
index d3ea3d48a1be0222290b866dc5079f2912180dce..ca2e8d907f0972e4d91897cf3a11f1054153e01f 100644 (file)
--- a/src/pybind/mgr/prometheus/module.py
+++ b/src/pybind/mgr/prometheus/module.py
@@ -120,8 +120,7 @@ class Metric(object):
 
         def promethize(path):
             ''' replace illegal metric name characters '''
-            result = path.replace('.', '_').replace(
-                '+', '_plus').replace('::', '_').replace(' ', '_')
+            result = re.sub(r'[./\s]|::', '_', path).replace('+', '_plus')
 
             # Hyphens usually turn into underscores, unless they are
             # trailing