Fixes on the traefik - prometheus config (#2962)

* buckets should be an array

* all array items should be of the same type

* bump chart version

stable/traefik/templates/configmap.yaml

@@ -89,7 +89,7 @@ data:
     {{- end }}
     {{ if .Values.metrics.prometheus.enabled }}
     [web.metrics.prometheus]
-      Buckets = {{ .Values.metrics.prometheus.buckets }}
+      Buckets = [{{ .Values.metrics.prometheus.buckets }}]
     {{- end }}
     {{ if .Values.metrics.datadog.enabled }}
     [web.metrics.datadog]

stable/traefik/values.yaml

@@ -91,7 +91,7 @@ rbac:
 metrics:
   prometheus:
     enabled: false
-    buckets: 0.1,0.3,1.2,5
+    buckets: 0.1,0.3,1.2,5.0
   datadog:
     enabled: false
     # address: "localhost:8125"