build.rst: Do not recommend using docker group

The documentation for building VyOS currently recommends adding a
non-root user to the docker group. Doing so is equivalent to making
that user root and thus should at least carry a warning.
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Niklas Elmose Andersen 2020-03-31 19:18:00 +02:00
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@ -29,10 +29,10 @@ Installing Docker_ and prerequisites:
$ apt-get update
$ apt-get install -y docker-ce
To be able to use Docker_, the current non-root user should be added to the
To be able to use Docker_ without ``sudo``, the current non-root user can be added to the
``docker`` group by calling: ``usermod -aG docker yourusername``
.. note:: It is recommended to use that non-root user for the remaining steps.
.. note:: Doing so grants privileges equivalent to the ``root`` user! It is recommended to remove the non-root user from the ``docker`` group after building the VyOS ISO. See also https://docs.docker.com/install/linux/linux-postinstall/#manage-docker-as-a-non-root-user
.. note:: The build process needs to be built on a local file system, building
on SMB or NFS shares will result in the container failing to build properly!