django-simplesshkey

django-simplesshkey allows you to associate multiple SSH public keys with Django user accounts. It provides views to list, add, edit, and delete keys, each of which is intended for end-user consumption. Of course, you can also manage SSH keys from the administration interface.

SSH keys are simply stored in the Django database, and what you do with them is up to you: you can have a cron job that regularly dumps SSH keys to files, or connect a signal to take an action each time a SSH key is saved... For instance, the author uses Ansible to deploy the SSH keys to several machines.

About django-sshkey and django-simplesshkey

django-simplesshkey is a fork of django-sshkey, based on version 2.5.0.

The goal of this fork is twofolds:

• Keep only basic functionalities needed to manage SSH keys linked to Django users. In particular, the optional integration with OpenSSH has been completely removed, which simplifies configuration and avoids leaking information by default (public lookup view). Also, sending emails when keys are added or modified is no longer done, because it can easily be implemented outside of this application.
• Be more flexible: impose less constraints on the model (no unicity), allow to override some fields of the model or form. Also, sending emails outside of this application obviously allows more flexibility.

Of course, if you need all the extra features of django-sshkey, you should continue using it!

Migrating from django-sshkey

If you are using django-sshkey but don't need the extra functionalities, it is possible to start using django-simplesshkey and import your data.

The migration process is a bit convoluted, see README.upgrading.rst for details.

The Django app

To use django-sshkey in your Django project, simply add django_sshkey to INSTALLED_APPS in settings.py, map the URLs into your project, and provide templates for the views (example templates are provided in the source).

URL Configuration

This text assumes that your project's urls.py maps simplesshkey.urls into the URL namespace as follows:

urlpatterns = [
  ...
  url('^sshkey/', include('simplesshkey.urls')),
  ...
]

You will need to adjust your URLs in the examples below if you use a different mapping.

Settings

SSHKEY_ALLOW_EDIT

Boolean, defaults to False. Whether or not editing keys is allowed.

SSHKEY_DEFAULT_HASH

String, either sha256, md5, or legacy (the default). The default hash algorithm to use for calculating the fingerprint of keys. The resulting hash is stored in the fingerprint field of each SSH key object. Legacy behavior enforces OpenSSH's pre-6.8 behavior of MD5 without the MD5: prefix.

Templates

Example templates are available in the templates.example directory.

sshkey/userkey_list.html

Used when listing a user's keys.

sshkey/userkey_detail.html

Used when adding or editing a user's keys.

Management commands

import_sshkey [--auto-resolve] [--prefix PREFIX] [--name NAME] USERNAME KEY_PATH ...

Imports SSH public keys to tie to a user. If --auto-resolve/-a are given, attempt to generate unique key names using a UUID. The prefix used during this process is the key name, but can be changed using --prefix/-p.

normalize_sshkeys [USERNAME KEY_NAME]

Recalculates key data to reflect a changed setting, for instance, if you have changed SSHKEY_DEFAULT_HASH and some keys have incorrect fingerprints in your database. Given no arguments, all keys will be normalized. The username asnd key name are optional, and if specified, will limit affected keys to those owned by a user, or a particular key of a user. This can also be done via the administration panel, but if you have a large key database the request could end up timing out.