How to make Gluu expose Prometheus metrics with Helm?

[vamos-hug-aar]

Describe the bug
How to make Gluu expose Prometheus metrics?

To Reproduce
Assuming I'm using this chart
https://artifacthub.io/packages/helm/gluu-flex/gluu
and install auth-server, config-api, and scim components... how to make them expose the metrics endpoint like i.e. here
https://gluu.org/docs/gg/plugin/gluu-metrics/
?

Expected behavior
Gluu exposes metrics endpoint

[moabu]

https://github.com/GluuFederation/flex/blob/main/flex-cn-setup/pygluu/kubernetes/templates/helm/gluu/values.yaml#L827 for the prometheus jmx. However we are still working on adding metrics and telemetry in general. The only available metric is the monthly active user metric currently.

Example:

1. created a new client with the below details. I didn't change any settings beside whats in the Standard settings:

OPENID CONNECT CLIENTS DETAILS

• Name: test
• Client ID: 9cc66d49-31f1-4a12-b1c2-c38f77417b40
• Subject Type: pairwise
• ClientSecret: XXXXXXXXXXX
• Application Type: web
• Persist Client Authorizations: true
• Pre-Authorization: false
• Authentication method for the Token Endpoint: client_secret_basic
• Logout Session Required: false
• Include Claims In Id Token: false
• Disabled: false
• Scopes: [openid]
• Grant types: [client_credentials]
• Response types: [token]

curl -k https://test.gluu.org/oxauth/restv1/internal/stat?month=202106 -u "9cc66d49-31f1-4a12-b1c2-c38f77417b40:2E585aiKkE26xmZXDXJdiI9qhTvqtKfeUXKac4z6"
{"response":{"202106":{"monthly_active_users":0,"token_count_per_granttype":{}}}}

You can also specify the open metrics format in the call

curl -k https://test.gluu.org/oxauth/restv1/internal/stat?month=202106&format=openmetric -u "9cc66d49-31f1-4a12-b1c2-c38f77417b40:2E585aiKkE26xmZXDXJdiI9qhTvqtKfeUXKac4z6"