feat: confiure redis sentinel authentication

Signed-off-by: Norman Ziegner <[email protected]>

README.md

@@ -247,6 +247,16 @@ redis_password: 'changeme'
 
 _Caution: You have to use your own private and encrypted password here._
 
+#### Password to Authenticate Redis Sentinels
+
+Support for Redis Sentinel password authentication was introduced in GitLab 16.1.
+
+```yaml
+redis_sentinel_password: 'changeme'
+```
+
+_Caution: You have to use your own private and encrypted password here._
+
 #### Reference Name of the Redis Cluster
 
 Choose a name of the Redis Cluster for references:

templates/gitlab.rb.j2

@@ -24,8 +24,11 @@ gitlab_rails['redis_sentinels'] = [
     { "host" => "{{ redis_sentinel_ip }}", "port" => "{{ redis_sentinel_port }}" },
 {% endfor %}
 ]
-gitlab_rails['monitoring_whitelist'] = ["{{ gitlab_ip_range }}"]
+{% if redis_sentinel_password %}
+gitlab_rails['redis_sentinels_password'] = "{{ redis_sentinel_password }}"
+{% endif %}
 {% endif %}
+gitlab_rails['monitoring_whitelist'] = ["{{ gitlab_ip_range }}"]
 
 {% if use_internal_gitaly %}
 git_data_dirs({"default" => {"path" => "{{ gitlab_git_data_dir }}"} })