diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7b0038bb..699109fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## master / unreleased
 
+* [ENHANCEMENT] Allow optional entry to /ruler/rule_groups endpoint #475
 * [ENHANCEMENT] Add option to autoscale on multiple metrics and custom metrics metrics #467
 * [DEPENDENCY] Update quay.io/cortexproject/cortex Docker tag to v1.15.0 #453
 * [DEPENDENCY] Update quay.io/cortexproject/cortex Docker tag to v1.15.1 #456
diff --git a/templates/nginx/nginx-config.yaml b/templates/nginx/nginx-config.yaml
index 7db8b83a..7eaee449 100644
--- a/templates/nginx/nginx-config.yaml
+++ b/templates/nginx/nginx-config.yaml
@@ -131,6 +131,14 @@ data:
           proxy_pass      http://{{ template "cortex.fullname" . }}-ruler.{{ $rootDomain }}$request_uri;
         }
 
+        {{- if .Values.ruler.list_all_rule_groups_api }}
+
+        location ~ /ruler/rule_groups {
+          proxy_pass      http://{{ template "cortex.fullname" . }}-ruler.{{ $rootDomain }}$request_uri;
+        }
+
+        {{- end }}
+
         location ~ /api/prom/rules {
           proxy_pass      http://{{ template "cortex.fullname" . }}-ruler.{{ $rootDomain }}$request_uri;
         }
diff --git a/values.yaml b/values.yaml
index 314bb8bf..fd6ebee2 100644
--- a/values.yaml
+++ b/values.yaml
@@ -722,6 +722,8 @@ ruler:
       enabled: true
       readOnlyRootFilesystem: true
 
+  list_all_rule_groups_api: false
+
 querier:
   enabled: true
   replicas: 2