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docs: serve: env vars in original commands are ignored

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Marian Beermann 2017-04-04 16:29:32 +02:00
parent bb6b4fde93
commit 49f6128d1c
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docs/usage.rst
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@ -403,11 +403,17 @@ Examples
borg serve has special support for ssh forced commands (see ``authorized_keys``
example below): it will detect that you use such a forced command and extract
the value of the ``--restrict-to-path`` option(s).
It will then parse the original command that came from the client, makes sure
that it is also ``borg serve`` and enforce path restriction(s) as given by the
forced command. That way, other options given by the client (like ``--info`` or
``--umask``) are preserved (and are not fixed by the forced command).
Environment variables (such as BORG_HOSTNAME_IS_UNIQUE) contained in the original
command sent by the client are *not* interpreted, but ignored. If BORG_XXX environment
variables should be set on the ``borg serve`` side, then these must be set in system-specific
locations like ``/etc/environment`` or in the forced command itself (example below).
::
# Allow an SSH keypair to only run borg, and only have access to /path/to/repo.
@ -416,6 +422,9 @@ forced command. That way, other options given by the client (like ``--info`` or
$ cat ~/.ssh/authorized_keys
command="borg serve --restrict-to-path /path/to/repo",no-pty,no-agent-forwarding,no-port-forwarding,no-X11-forwarding,no-user-rc ssh-rsa AAAAB3[...]
# Set a BORG_XXX environment variable on the "borg serve" side
$ cat ~/.ssh/authorized_keys
command="export BORG_XXX=value; borg serve [...]",restrict ssh-rsa [...]
.. include:: usage/upgrade.rst.inc