1. - [ ] Mandatory: Add the required version to the Fix version/s field.

ACM 2.12, ACM 2.13, ACM 2.14

2. - [ ] Mandatory: Choose the type of documentation change or review.

• [ ] We need to update to an existing topic
  https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_management_for_kubernetes/2.12/html/observability/observing-environments-intro#customizing-certificates-object-store

3. - [ ] Mandatory: Find the link to where the documentation update
should go and add it to the recommended changes. You can either use the
published doc or the staged repo for this step:

Note: As the feature and doc is understood, this recommendation may
change. If this is new documentation, link to the section where you think
it should be placed.

Customer Portal published version

https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_management_for_kubernetes/2.12

4. - [ ] Mandatory for GA content:

In the documentation we should not use Minio
We should point to ODF instead

Minio is not officially supported, we do do some QE however

metricObjectStorage:
  key: thanos.yaml
  name: thanos-object-storage
  tlsSecretName: tls-certs-secret 1
  tlsSecretMountPath: /etc/minio/certs 2

The value for tlsSecretName is the name of the Secret object that you previously created.

The /etc/minio/certs/ path defined for the tlsSecretMountPath parameter specifies where the certificates are mounted in the Observability components. This path is required for the next step.
Update the thanos.yaml definition in the thanos-object-storage secret by adding the http_config.tls_config section with the certificate details. View the following example:

thanos.yaml: |
   type: s3
   config:
     bucket: "thanos"
     endpoint: "minio:9000"
     insecure: false 1
     access_key: "minio"
     secret_key: "minio123"
     http_config:
       tls_config:
         ca_file: /etc/minio/certs/ca.crt 2
         insecure_skip_verify: false

5. - [ ] Mandatory for bugs: What is the diff? Clearly define what the
problem is, what the change is, and link to the current documentation. Only
use this for a documentation bug.