Document using Kubernetes (EKS) service accounts for AWS credentials

[r13i]

From the source code 1, it seems possible to acquire credentials from a service account on EKS, which sets the environment variables AWS_ROLE_ARN and AWS_WEB_IDENTITY_TOKEN_FILE.

I am basing my setup on the example How to use clickhouse-backup in Kubernetes
.

After updating my ClickHouse installation with the reference to the service account name, all the operations work fine.

apiVersion: "clickhouse.altinity.com/v1"
kind: "ClickHouseInstallation"
metadata:
  name: <NAME>
  namespace: <NAMESPACE>
spec:
  templates:
    podTemplates:
      - name: <NAME>
        spec:
          containers:
            - name: clickhouse-backup
            ...
          serviceAccountName: <SERVICE ACCOUNT NAME>

Is it possible to update the documentation to mention this option, which I think would be valuable for everyone using EKS?