--- fixes: - | Fixed bug `#2039498 `__ where the Grafana docker volume was bind mounted over Grafana plugins installed at image build time. This was fixed by copying the dashboards into the container from an existing bind mount instead of using the ``grafana`` volume. However, this leaves behind the volume, which can be removed by setting ``grafana_remove_old_volume`` to ``true``. Please note that any plugins installed via the CLI directly and not through Kolla will be lost when doing this. In a future release, ``grafana_remove_old_volume`` will default to ``true``. upgrade: - | The ``grafana`` volume is no longer used. If you wish to automatically remove the old volume, set ``grafana_remove_old_volume`` to ``true``. Note that doing this will lose any plugins installed via the CLI directly and not through Kolla. If you have previously installed Grafana plugins via the Grafana UI or CLI, you must change to installing them at image `build time `__. The Grafana volume, which contains existing custom plugins, will be automatically removed in the D release.