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Explicitly detail the recommendations for the rock-ons root share (#340) #341

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22 changes: 18 additions & 4 deletions interface/overview.rst
Original file line number Diff line number Diff line change
Expand Up @@ -40,11 +40,25 @@ The Rock-ons root
All Rock-ons require the **Rock-on service** to be enabled and prior to
enabling this service it must be configured. This is a simple matter of
configuring a sufficiently large share for the rock-ons to be installed into.
It is possible to use the existing 'out of the box' home share but this is not
recommended.

The following shows a **Recommended Minimum 5 GB rock-ons-root** share backed
by a previously created pool named **rock-pool**.
We recommend creating a *dedicated* share to be used as the rock-ons root.
While any share can be chosen as the rock-ons root, we **strongly** recommend
to create a share to be used *only* as the rock-ons root to prevent any
conflict that may arise with a mixed-used share. The rock-ons root share is
indeed used by Docker to store permanent data such as images and container
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layers. As a result, any conflict or alteration of these data that might result
from a mixed used share has the potential to break the installed Rock-ons.
Note also that the rock-ons root share can be part of any :ref:`pool<pools>`
and does not require the creation of a dedicated pool.

.. note::
While it is possible to use the existing 'out of the box' home share but
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this is **not recommended** for the reason described above. Similarly,
while it is possible to create the rock-ons root share on the system pool,
this is **not recommended** either.

As an example, the following shows a **Recommended Minimum 5 GB rock-ons-root**
share backed by a previously created pool named **rock-pool**.

.. image:: /images/interface/docker-based-rock-ons/rockons_root_share.png
:width: 100%
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