cdist/cdist/conf/type/__apt_key/man.rst
Evil Ham c00c8c2012 [__apt_key*] Deprecate __apt_key_uri and improve __apt_key
Previously this type was falling back to using the deprecated apt-key(8) by
checking for existence of files/directories on the controller host in
gencode-remote.

Adding `--use-deprecated-apt-key` as an explicit boolean serves two purposes:
1. It prevents fallbacks that might end up doing the wrong thing
   (as was the case)
2. It allows for a simple way to remove keys from the keyring that were
   previously added with apt-key(8) to /etc/apt/trusted.gpg

This parameter is added marked as deprecated as is only intended use is to
migrate to directory-based keyrings as recommended by Debian for a few releases.
It will be removed when Debian 11 stops being supported.

During the review process of this merge request, it was noted that the state of
PGP Key Servers is somewhat suboptimal, that the examples encouraged bad
practise (it is trivial to produce collisions for short key IDs), and that
this use does not require the Web of Trust, but instead only the public key
that is signing the repository.

That is why this also adds `--source` as an argument allowing for in-type or
in-manifest provision of such public keys by the type/manifest maintainer and
the use of Key Servers is still supported, but discouraged.
2021-05-10 12:08:22 +02:00

114 lines
3.3 KiB
ReStructuredText

cdist-type__apt_key(7)
======================
NAME
----
cdist-type__apt_key - Manage the list of keys used by apt
DESCRIPTION
-----------
Manages the list of keys used by apt to authenticate packages.
This is done by placing the requested key in a file named
``$__object_id.gpg`` in the ``keydir`` directory.
This is supported by modern releases of Debian-based distributions.
In order of preference, exactly one of: ``source``, ``uri`` or ``keyid``
must be specified.
REQUIRED PARAMETERS
-------------------
None.
OPTIONAL PARAMETERS
-------------------
keydir
keyring directory, defaults to ``/etc/apt/trusted.pgp.d``, which is
enabled system-wide by default.
source
path to a file containing the GPG key of the repository.
Using this is recommended as it ensures that the manifest/type manintainer
has validated the key.
If ``-``, the GPG key is read from the type's stdin.
state
'present' or 'absent'. Defaults to 'present'
uri
the URI from which to download the key.
It is highly recommended that you only use protocols with TLS like HTTPS.
This uses ``__download`` but does not use checksums, if you want to ensure
that the key doesn't change, you are better off downloading it and using
``--source``.
DEPRECATED OPTIONAL PARAMETERS
------------------------------
keyid
the id of the key to download from the ``keyserver``.
This is to be used in absence of ``--source`` and ``--uri`` or together
with ``--use-deprecated-apt-key`` for key removal.
Defaults to ``$__object_id``.
keyserver
the keyserver from which to fetch the key.
Defaults to ``pool.sks-keyservers.net``.
DEPRECATED BOOLEAN PARAMETERS
-----------------------------
use-deprecated-apt-key
``apt-key(8)`` will last be available in Debian 11 and Ubuntu 22.04.
You can use this parameter to force usage of ``apt-key(8)``.
Please only use this parameter to *remove* keys from the keyring,
in order to prepare for removal of ``apt-key``.
Adding keys should be done without this parameter.
This parameter will be removed when Debian 11 stops being supported.
EXAMPLES
--------
.. code-block:: sh
# add a key that has been verified by a type maintainer
__apt_key jitsi_meet_2021 \
--source cdist-contrib/type/__jitsi_meet/files/apt_2021.gpg
# remove an old, deprecated or expired key
__apt_key jitsi_meet_2016 --state absent
# Get rid of a key that might have been added to
# /etc/apt/trusted.gpg with apt-key
__apt_key 0x40976EAF437D05B5 --use-deprecated-apt-key --state absent
# add a key that we define in-line
__apt_key jitsi_meet_2021 --source '-' <<EOF
-----BEGIN PGP PUBLIC KEY BLOCK-----
[...]
-----END PGP PUBLIC KEY BLOCK-----
EOF
# download or update key from the internet
__apt_key rabbitmq_2007 \
--uri https://www.rabbitmq.com/rabbitmq-signing-key-public.asc
AUTHORS
-------
Steven Armstrong <steven-cdist--@--armstrong.cc>
Ander Punnar <ander-at-kvlt-dot-ee>
Evilham <contact~~@~~evilham.com>
COPYING
-------
Copyright \(C) 2011-2021 Steven Armstrong, Ander Punnar and Evilham. You can
redistribute it and/or modify it under the terms of the GNU General Public
License as published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.