matrix-docker-ansible-deploy/roles/custom/matrix-grafana/tasks/validate_config.yml

---

- name: Fail if Prometheus not enabled
  ansible.builtin.fail:
    msg: >
      You need to enable `matrix_prometheus_enabled` to use Prometheus as data source for Grafana.
  when: "not matrix_prometheus_enabled"

- name: (Deprecation) Catch and report renamed settings
  ansible.builtin.fail:
    msg: >-
      Your configuration contains a variable, which now has a different name.
      Please change your configuration to rename the variable (`{{ item.old }}` -> `{{ item.new }}`).
  when: "item.old in vars"
  with_items:
    - {'old': 'matrix_grafana_dashboard_download_urls_all', 'new': 'matrix_grafana_dashboard_download_urls'}