Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/doc/mgr/dashboard_plugins/feature_toggles.inc.rst b/doc/mgr/dashboard_plugins/feature_toggles.inc.rst
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+.. _dashboard-feature-toggles:
+
+Feature Toggles
+^^^^^^^^^^^^^^^
+
+This plug-in allows to enable or disable some features from the Ceph Dashboard
+on-demand. When a feature becomes disabled:
+
+- Its front-end elements (web pages, menu entries, charts, etc.) will become hidden.
+- Its associated REST API endpoints will reject any further requests (404, Not Found Error).
+
+The main purpose of this plug-in is to allow ad-hoc customizations of the workflows exposed
+by the dashboard. Additionally, it could allow for dynamically enabling experimental
+features with minimal configuration burden and no service impact.
+
+The list of features that can be enabled/disabled is:
+
+- **Block (RBD)**:
+   - Image Management: ``rbd``
+   - Mirroring: ``mirroring``
+   - iSCSI: ``iscsi``
+- **Filesystem (Cephfs)**: ``cephfs``
+- **Objects (RGW)**: ``rgw`` (including daemon, user and bucket management).
+- **NFS**: ``nfs-ganesha`` exports.
+
+By default all features come enabled.
+
+To retrieve a list of features and their current statuses:
+
+.. prompt:: bash $
+
+   ceph dashboard feature status
+
+::
+
+  Feature 'cephfs': 'enabled'
+  Feature 'iscsi': 'enabled'
+  Feature 'mirroring': 'enabled'
+  Feature 'rbd': 'enabled'
+  Feature 'rgw': 'enabled'
+  Feature 'nfs': 'enabled'
+
+To enable or disable the status of a single or multiple features:
+
+.. prompt:: bash $
+
+   ceph dashboard feature disable iscsi mirroring
+
+:: 
+
+  Feature 'iscsi': disabled
+  Feature 'mirroring': disabled
+
+After a feature status has changed, the API REST endpoints immediately respond to
+that change, while for the front-end UI elements, it may take up to 20 seconds to
+reflect it.